Expand file structure, Vaporize skeleton

18 files changed, 0 insertions, 2683 deletions

diff --git a/tests/BinaryTree-error.java b/tests/BinaryTree-error.java
deleted file mode 100644
index d9be857..0000000
--- a/tests/BinaryTree-error.java
+++ /dev/null
@@ -1,334 +0,0 @@
-class BinaryTree{
-    public static void main(String[] a){
-	System.out.println(new BT().Start());
-    }
-}
-
-
-// This class invokes the methods to create a tree,
-// insert, delete and serach for  elements on it
-class BT {
-
-    public int Start(){
-	Tree root ;
-	boolean ntb ;
-	int nti ;
-
-	root = new Tree();
-	ntb = root.Init(16);
-	ntb = root.Print();
-	System.out.println(100000000);
-	ntb = root.Insert(8) ;
-	ntb = root.Print();
-	ntb = root.Insert(24) ;
-	ntb = root.Insert(4) ;
-	ntb = root.Insert(12) ;
-	ntb = root.Insert(20) ;
-	ntb = root.Insert(28) ;
-	ntb = root.Insert(14) ;
-	ntb = root.Print();
-	System.out.println(root.Search(24));
-	System.out.println(root.Search(12));
-	System.out.println(root.Search(16));
-	System.out.println(root.Search(50));
-	System.out.println(root.Search(12));
-	ntb = root.Delete(); // TE, should be Delete(12)
-	ntb = root.Print();
-	System.out.println(root.Search(12));
-
-	return 0 ;
-    }
-
-}
-
-class Tree{
-    Tree left ;
-    Tree right;
-    int key ;
-    boolean has_left ;
-    boolean has_right ;
-    Tree my_null ;
-
-    // Initialize a node with a key value and no children
-    public boolean Init(int v_key){
-	key = v_key ;
-	has_left = false ;
-	has_right = false ;
-	return true ;
-    }
-
-    // Update the right child with rn
-    public boolean SetRight(Tree rn){
-	right = rn ;
-	return true ;
-    }
-    
-    // Update the left child with ln
-    public boolean SetLeft(Tree ln){
-	left = ln ;
-	return true ;
-    }
-
-    public Tree GetRight(){
-	return right ;
-    }
-
-    public Tree GetLeft(){
-	return left;
-    }
-
-    public int GetKey(){
-	return key ;
-    }
-
-    public boolean SetKey(int v_key){
-	key = v_key ;
-	return true ;
-    }
-
-    public boolean GetHas_Right(){
-	return has_right ;
-    }
-
-    public boolean GetHas_Left(){
-	return has_left ;
-    }
-
-    public boolean SetHas_Left(boolean val){
-	 has_left = val ;
-	 return true ;
-    }
-
-    public boolean SetHas_Right(boolean val){
-	 has_right = val ;
-	 return true ;
-    }
-    
-    // This method compares two integers and
-    // returns true if they are equal and false
-    // otherwise
-    public boolean Compare(int num1 , int num2){
-	boolean ntb ;
-	int nti ;
-
-	ntb = false ;
-	nti = num2 + 1 ;
-	if (num1 < num2) ntb = false ;
-	else if (!(num1 < nti)) ntb = false ;
-	else ntb = true ;
-	return ntb ;
-    }
-
-
-    // Insert a new element in the tree
-    public boolean Insert(int v_key){
-	Tree new_node ;
-	boolean ntb ;
-	boolean cont ;
-	int key_aux ;
-	Tree current_node ;
-
-	new_node = new Tree();
-	ntb = new_node.Init(v_key) ;
-	current_node = this ;
-	cont = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux){
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Left(true);
-		    ntb = current_node.SetLeft(new_node);
-		}
-	    }
-	    else{
-		if (current_node.GetHas_Right())
-		    current_node = current_node.GetRight() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Right(true);
-		    ntb = current_node.SetRight(new_node);
-		}
-	    }
-	}
-	return true ;
-    }
-
-
-    // Delete an element from the tree
-    public boolean Delete(int v_key){
-	Tree current_node ;
-	Tree parent_node ;
-	boolean cont ;
-	boolean found ;
-	boolean is_root ;
-	int key_aux ;
-	boolean ntb ;
-
-	current_node = this ;
-	parent_node = this ;
-	cont = true ;
-	found = false ;
-	is_root = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left()){
-		    parent_node = current_node ;
-		    current_node = current_node.GetLeft() ;
-		}
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right()){
-			parent_node = current_node ;
-			current_node = current_node.GetRight() ;
-		    }
-		    else cont = false ;
-		else { 
-		    if (is_root) 
-			if ((!current_node.GetHas_Right()) && 
-			    (!current_node.GetHas_Left()) )
-			    ntb = true ;
-			else 
-			    ntb = this.Remove(parent_node,current_node); 
-		    else ntb = this.Remove(parent_node,current_node);
-		    found = true ;
-		    cont = false ;
-		}
-	    is_root = false ;
-	}
-	return found ;
-    }
-
-
-    // Check if the element to be removed will use the
-    // righ or left subtree if one exists
-    public boolean Remove(Tree p_node, Tree c_node){
-	boolean ntb ;
-	int auxkey1 ;
-	int auxkey2 ;
-	
-	if (c_node.GetHas_Left()) 
-	    ntb = this.RemoveLeft(p_node,c_node) ;
-	else 
-	    if (c_node.GetHas_Right())
-		ntb = this.RemoveRight(p_node,c_node) ;
-	    else {
-		auxkey1 = c_node.GetKey();
-		//auxtree01 = p_node.GetLeft() ;
-		//auxkey2 = auxtree01.GetKey() ;
-		auxkey2 = (p_node.GetLeft()).GetKey() ;
-		if (this.Compare(auxkey1,auxkey2)) {
-		    ntb = p_node.SetLeft(my_null);
-		    ntb = p_node.SetHas_Left(false);
-		}
-		else {
-		    ntb = p_node.SetRight(my_null);
-		    ntb = p_node.SetHas_Right(false);
-		}
-	    }
-	return true ;
-    }
-
-
-    // Copy the child key to the parent until a leaf is
-    // found and remove the leaf. This is done with the
-    // right subtree
-    public boolean RemoveRight(Tree p_node, Tree c_node){
-	boolean ntb ;
-
-	while (c_node.GetHas_Right()){
-	    //auxtree01 = c_node.GetRight() ;
-	    //auxint02 = auxtree01.GetKey();
-	    //ntb = c_node.SetKey(auxint02);
-	    ntb = c_node.SetKey((c_node.GetRight()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetRight() ;
-	}
-	ntb = p_node.SetRight(my_null);
-	ntb = p_node.SetHas_Right(false);
-	return true ;
-    }
-
-
-    // Copy the child key to the parent until a leaf is
-    // found and remove the leaf. This is done with the
-    // left subtree
-    public boolean RemoveLeft(Tree p_node, Tree c_node){
-	boolean ntb ;
-
-	while (c_node.GetHas_Left()){
-	    //auxtree01 = c_node.GetLeft() ;
-	    //auxint02 = auxtree01.GetKey();
-	    //ntb = c_node.SetKey(auxint02);
-	    ntb = c_node.SetKey((c_node.GetLeft()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetLeft() ;
-	}
-	ntb = p_node.SetLeft(my_null);
-	ntb = p_node.SetHas_Left(false);
-	return true ;
-    }
-
-    // Search for an elemnt in the tree
-    public int Search(int v_key){
-	boolean cont ;
-	int ifound ;
-	Tree current_node;
-	int key_aux ;
-
-	current_node = this ;
-	cont = true ;
-	ifound = 0 ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right())
-			current_node = current_node.GetRight() ;
-		    else cont = false ;
-		else { 
-		    ifound = 1 ;
-		    cont = false ;
-		}
-	}
-	return ifound ;
-    }
-
-    // Invoke the method to really print the tree elements
-    public boolean Print(){
-	Tree current_node;
-	boolean ntb ;
-
-	current_node = this ;
-	ntb = this.RecPrint(current_node);
-	return true ;
-    }
-
-    // Print the elements of the tree
-    public boolean RecPrint(Tree node){
-	boolean ntb ;
-
-	if (node.GetHas_Left()){
-	    //auxtree01 = node.GetLeft() ;
-	    //ntb = this.RecPrint(auxtree01);
-	    ntb = this.RecPrint(node.GetLeft());
-	} else ntb = true ;
-	System.out.println(node.GetKey());
-	if (node.GetHas_Right()){
-	    //auxtree01 = node.GetRight() ;
-	    //ntb = this.RecPrint(auxtree01);
-	    ntb = this.RecPrint(node.GetRight());
-	} else ntb = true ;
-	return true ;
-    }
-
-}
-   
diff --git a/tests/BinaryTree.java b/tests/BinaryTree.java
deleted file mode 100644
index 18d1464..0000000
--- a/tests/BinaryTree.java
+++ /dev/null
@@ -1,334 +0,0 @@
-class BinaryTree{
-    public static void main(String[] a){
-	System.out.println(new BT().Start());
-    }
-}
-
-
-// This class invokes the methods to create a tree,
-// insert, delete and serach for  elements on it
-class BT {
-
-    public int Start(){
-	Tree root ;
-	boolean ntb ;
-	int nti ;
-
-	root = new Tree();
-	ntb = root.Init(16);
-	ntb = root.Print();
-	System.out.println(100000000);
-	ntb = root.Insert(8) ;
-	ntb = root.Print();
-	ntb = root.Insert(24) ;
-	ntb = root.Insert(4) ;
-	ntb = root.Insert(12) ;
-	ntb = root.Insert(20) ;
-	ntb = root.Insert(28) ;
-	ntb = root.Insert(14) ;
-	ntb = root.Print();
-	System.out.println(root.Search(24));
-	System.out.println(root.Search(12));
-	System.out.println(root.Search(16));
-	System.out.println(root.Search(50));
-	System.out.println(root.Search(12));
-	ntb = root.Delete(12);
-	ntb = root.Print();
-	System.out.println(root.Search(12));
-
-	return 0 ;
-    }
-
-}
-
-class Tree{
-    Tree left ;
-    Tree right;
-    int key ;
-    boolean has_left ;
-    boolean has_right ;
-    Tree my_null ;
-
-    // Initialize a node with a key value and no children
-    public boolean Init(int v_key){
-	key = v_key ;
-	has_left = false ;
-	has_right = false ;
-	return true ;
-    }
-
-    // Update the right child with rn
-    public boolean SetRight(Tree rn){
-	right = rn ;
-	return true ;
-    }
-    
-    // Update the left child with ln
-    public boolean SetLeft(Tree ln){
-	left = ln ;
-	return true ;
-    }
-
-    public Tree GetRight(){
-	return right ;
-    }
-
-    public Tree GetLeft(){
-	return left;
-    }
-
-    public int GetKey(){
-	return key ;
-    }
-
-    public boolean SetKey(int v_key){
-	key = v_key ;
-	return true ;
-    }
-
-    public boolean GetHas_Right(){
-	return has_right ;
-    }
-
-    public boolean GetHas_Left(){
-	return has_left ;
-    }
-
-    public boolean SetHas_Left(boolean val){
-	 has_left = val ;
-	 return true ;
-    }
-
-    public boolean SetHas_Right(boolean val){
-	 has_right = val ;
-	 return true ;
-    }
-    
-    // This method compares two integers and
-    // returns true if they are equal and false
-    // otherwise
-    public boolean Compare(int num1 , int num2){
-	boolean ntb ;
-	int nti ;
-
-	ntb = false ;
-	nti = num2 + 1 ;
-	if (num1 < num2) ntb = false ;
-	else if (!(num1 < nti)) ntb = false ;
-	else ntb = true ;
-	return ntb ;
-    }
-
-
-    // Insert a new element in the tree
-    public boolean Insert(int v_key){
-	Tree new_node ;
-	boolean ntb ;
-	boolean cont ;
-	int key_aux ;
-	Tree current_node ;
-
-	new_node = new Tree();
-	ntb = new_node.Init(v_key) ;
-	current_node = this ;
-	cont = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux){
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Left(true);
-		    ntb = current_node.SetLeft(new_node);
-		}
-	    }
-	    else{
-		if (current_node.GetHas_Right())
-		    current_node = current_node.GetRight() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Right(true);
-		    ntb = current_node.SetRight(new_node);
-		}
-	    }
-	}
-	return true ;
-    }
-
-
-    // Delete an element from the tree
-    public boolean Delete(int v_key){
-	Tree current_node ;
-	Tree parent_node ;
-	boolean cont ;
-	boolean found ;
-	boolean is_root ;
-	int key_aux ;
-	boolean ntb ;
-
-	current_node = this ;
-	parent_node = this ;
-	cont = true ;
-	found = false ;
-	is_root = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left()){
-		    parent_node = current_node ;
-		    current_node = current_node.GetLeft() ;
-		}
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right()){
-			parent_node = current_node ;
-			current_node = current_node.GetRight() ;
-		    }
-		    else cont = false ;
-		else { 
-		    if (is_root) 
-			if ((!current_node.GetHas_Right()) && 
-			    (!current_node.GetHas_Left()) )
-			    ntb = true ;
-			else 
-			    ntb = this.Remove(parent_node,current_node); 
-		    else ntb = this.Remove(parent_node,current_node);
-		    found = true ;
-		    cont = false ;
-		}
-	    is_root = false ;
-	}
-	return found ;
-    }
-
-
-    // Check if the element to be removed will use the
-    // righ or left subtree if one exists
-    public boolean Remove(Tree p_node, Tree c_node){
-	boolean ntb ;
-	int auxkey1 ;
-	int auxkey2 ;
-	
-	if (c_node.GetHas_Left()) 
-	    ntb = this.RemoveLeft(p_node,c_node) ;
-	else 
-	    if (c_node.GetHas_Right())
-		ntb = this.RemoveRight(p_node,c_node) ;
-	    else {
-		auxkey1 = c_node.GetKey();
-		//auxtree01 = p_node.GetLeft() ;
-		//auxkey2 = auxtree01.GetKey() ;
-		auxkey2 = (p_node.GetLeft()).GetKey() ;
-		if (this.Compare(auxkey1,auxkey2)) {
-		    ntb = p_node.SetLeft(my_null);
-		    ntb = p_node.SetHas_Left(false);
-		}
-		else {
-		    ntb = p_node.SetRight(my_null);
-		    ntb = p_node.SetHas_Right(false);
-		}
-	    }
-	return true ;
-    }
-
-
-    // Copy the child key to the parent until a leaf is
-    // found and remove the leaf. This is done with the
-    // right subtree
-    public boolean RemoveRight(Tree p_node, Tree c_node){
-	boolean ntb ;
-
-	while (c_node.GetHas_Right()){
-	    //auxtree01 = c_node.GetRight() ;
-	    //auxint02 = auxtree01.GetKey();
-	    //ntb = c_node.SetKey(auxint02);
-	    ntb = c_node.SetKey((c_node.GetRight()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetRight() ;
-	}
-	ntb = p_node.SetRight(my_null);
-	ntb = p_node.SetHas_Right(false);
-	return true ;
-    }
-
-
-    // Copy the child key to the parent until a leaf is
-    // found and remove the leaf. This is done with the
-    // left subtree
-    public boolean RemoveLeft(Tree p_node, Tree c_node){
-	boolean ntb ;
-
-	while (c_node.GetHas_Left()){
-	    //auxtree01 = c_node.GetLeft() ;
-	    //auxint02 = auxtree01.GetKey();
-	    //ntb = c_node.SetKey(auxint02);
-	    ntb = c_node.SetKey((c_node.GetLeft()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetLeft() ;
-	}
-	ntb = p_node.SetLeft(my_null);
-	ntb = p_node.SetHas_Left(false);
-	return true ;
-    }
-
-    // Search for an elemnt in the tree
-    public int Search(int v_key){
-	boolean cont ;
-	int ifound ;
-	Tree current_node;
-	int key_aux ;
-
-	current_node = this ;
-	cont = true ;
-	ifound = 0 ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right())
-			current_node = current_node.GetRight() ;
-		    else cont = false ;
-		else { 
-		    ifound = 1 ;
-		    cont = false ;
-		}
-	}
-	return ifound ;
-    }
-
-    // Invoke the method to really print the tree elements
-    public boolean Print(){
-	Tree current_node;
-	boolean ntb ;
-
-	current_node = this ;
-	ntb = this.RecPrint(current_node);
-	return true ;
-    }
-
-    // Print the elements of the tree
-    public boolean RecPrint(Tree node){
-	boolean ntb ;
-
-	if (node.GetHas_Left()){
-	    //auxtree01 = node.GetLeft() ;
-	    //ntb = this.RecPrint(auxtree01);
-	    ntb = this.RecPrint(node.GetLeft());
-	} else ntb = true ;
-	System.out.println(node.GetKey());
-	if (node.GetHas_Right()){
-	    //auxtree01 = node.GetRight() ;
-	    //ntb = this.RecPrint(auxtree01);
-	    ntb = this.RecPrint(node.GetRight());
-	} else ntb = true ;
-	return true ;
-    }
-
-}
-   
diff --git a/tests/BubbleSort-error.java b/tests/BubbleSort-error.java
deleted file mode 100644
index 97a1c1d..0000000
--- a/tests/BubbleSort-error.java
+++ /dev/null
@@ -1,93 +0,0 @@
-class BubbleSort{
-    public static void main(String[] a){
-	System.out.println(new BBS().Start(10));
-    }
-}
-
-
-// This class contains the array of integers and
-// methods to initialize, print and sort the array
-// using Bublesort
-class BBS{
-    
-    int[] number ;
-    int size ;
-
-    // Invoke the Initialization, Sort and Printing
-    // Methods
-    public int Start(int sz){
-	int aux01 ;
-	aux01 = this.Init(sz);
-	aux01 = this.Print();
-	System.out.println(99999);
-	aux01 = this.Sort();
-	aux01 = this.Print();
-	return 0 ;
-    }
-
- 
-    // Sort array of integers using Bublesort method
-    public int Sort(){
-	int nt ;
-	int i ;
-	int aux02 ;
-	int aux04 ;
-	int aux05 ;
-	int aux06 ;
-	int aux07 ;
-	int j ;
-	int t ;
-	i = size - 1 ;
-	aux02 = 0 - 1 ;
-	while (aux02 < i) {
-	    j = 1 ;
-	    //aux03 = i+1 ;
-	    while (j < (i+1)){
-		aux07 = j - 1 ;
-		aux04 = number[aux07] ;
-		aux05 = number[j] ;
-		if (aux05 < aux04) {
-		    aux06 = j - 1 ;
-		    t = number[aux06] ;
-		    number[aux06] = number[j] ;
-		    number[j] = t;
-		}
-		else nt = 0 ;
-		j = j + 1 ;
-	    }
-	    i = i - 1 ;
-	}
-	return 0 ;
-    }
-
-    // Printing method
-    public int Print(){
-	int j ;
-	j = 0 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-    
-    // Initialize array of integers
-    public int Init(int sz){
-	size = sz1 ;  //TE
-	number = new int[sz] ;
-	
-	number[0] = 20 ;
-	number[1] = 7  ; 
-	number[2] = 12 ;
-	number[3] = 18 ;
-	number[4] = 2  ; 
-	number[5] = 11 ;
-	number[6] = 6  ; 
-	number[7] = 9  ; 
-	number[8] = 19 ; 
-	number[9] = 5  ;
-	
-	return 0 ;	
-    }
-
-}
diff --git a/tests/BubbleSort.java b/tests/BubbleSort.java
deleted file mode 100644
index e5645a9..0000000
--- a/tests/BubbleSort.java
+++ /dev/null
@@ -1,93 +0,0 @@
-class BubbleSort{
-    public static void main(String[] a){
-	System.out.println(new BBS().Start(10));
-    }
-}
-
-
-// This class contains the array of integers and
-// methods to initialize, print and sort the array
-// using Bublesort
-class BBS{
-    
-    int[] number ;
-    int size ;
-
-    // Invoke the Initialization, Sort and Printing
-    // Methods
-    public int Start(int sz){
-	int aux01 ;
-	aux01 = this.Init(sz);
-	aux01 = this.Print();
-	System.out.println(99999);
-	aux01 = this.Sort();
-	aux01 = this.Print();
-	return 0 ;
-    }
-
- 
-    // Sort array of integers using Bublesort method
-    public int Sort(){
-	int nt ;
-	int i ;
-	int aux02 ;
-	int aux04 ;
-	int aux05 ;
-	int aux06 ;
-	int aux07 ;
-	int j ;
-	int t ;
-	i = size - 1 ;
-	aux02 = 0 - 1 ;
-	while (aux02 < i) {
-	    j = 1 ;
-	    //aux03 = i+1 ;
-	    while (j < (i+1)){
-		aux07 = j - 1 ;
-		aux04 = number[aux07] ;
-		aux05 = number[j] ;
-		if (aux05 < aux04) {
-		    aux06 = j - 1 ;
-		    t = number[aux06] ;
-		    number[aux06] = number[j] ;
-		    number[j] = t;
-		}
-		else nt = 0 ;
-		j = j + 1 ;
-	    }
-	    i = i - 1 ;
-	}
-	return 0 ;
-    }
-
-    // Printing method
-    public int Print(){
-	int j ;
-	j = 0 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-    
-    // Initialize array of integers
-    public int Init(int sz){
-	size = sz ;
-	number = new int[sz] ;
-	
-	number[0] = 20 ;
-	number[1] = 7  ; 
-	number[2] = 12 ;
-	number[3] = 18 ;
-	number[4] = 2  ; 
-	number[5] = 11 ;
-	number[6] = 6  ; 
-	number[7] = 9  ; 
-	number[8] = 19 ; 
-	number[9] = 5  ;
-	
-	return 0 ;	
-    }
-
-}
diff --git a/tests/Empty.java b/tests/Empty.java
deleted file mode 100644
index 975ac63..0000000
--- a/tests/Empty.java
+++ /dev/null
@@ -1,5 +0,0 @@
-class Empty {
-    public static void main(String[] a) {
-	System.out.println(1);
-    }
-}
diff --git a/tests/Factorial-error.java b/tests/Factorial-error.java
deleted file mode 100644
index 46ec59a..0000000
--- a/tests/Factorial-error.java
+++ /dev/null
@@ -1,16 +0,0 @@
-class Factorial{

-    public static void main(String[] a){

-        System.out.println(new Fac().ComputeFac(10));

-    }

-}

-

-class Fac {

-    public boolean ComputeFac(int num){  //TE

-        int num_aux ;

-        if (num < 1)

-            num_aux = 1 ;

-        else

-            num_aux = num * (this.ComputeFac(num-1)) ;

-        return num_aux ;

-    }

-}

diff --git a/tests/Factorial.java b/tests/Factorial.java
deleted file mode 100644
index d938bb6..0000000
--- a/tests/Factorial.java
+++ /dev/null
@@ -1,16 +0,0 @@
-class Factorial{

-    public static void main(String[] a){

-        System.out.println(new Fac().ComputeFac(10));

-    }

-}

-

-class Fac {

-    public int ComputeFac(int num){

-        int num_aux ;

-        if (num < 1)

-            num_aux = 1 ;

-        else

-            num_aux = num * (this.ComputeFac(num-1)) ;

-        return num_aux ;

-    }

-}

diff --git a/tests/LinearSearch-error.java b/tests/LinearSearch-error.java
deleted file mode 100644
index f8c48fe..0000000
--- a/tests/LinearSearch-error.java
+++ /dev/null
@@ -1,99 +0,0 @@
-class LinearSearch{
-    public static void main(String[] a){
-	System.out.println(new LS().Start(10));
-    }
-}
-
-
-// This class contains an array of integers and
-// methods to initialize, print and search the array
-// using Linear Search
-class LS {
-    int number ; //TE
-    int size ;
-    
-    // Invoke methods to initialize, print and search
-    // for elements on the array
-    public int Start(int sz){
-	int aux01 ;
-	int aux02 ;
-
-	aux01 = this.Init(sz);
-	aux02 = this.Print();
-	System.out.println(9999);
-	System.out.println(this.Search(8));
-	System.out.println(this.Search(12)) ;
-	System.out.println(this.Search(17)) ;
-	System.out.println(this.Search(50)) ;
-	return 55 ;
-    }
-
-    // Print array of integers
-    public int Print(){
-	int j ;
-
-	j = 1 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-
-    // Search for a specific value (num) using
-    // linear search
-    public int Search(int num){
-	int j ;
-	boolean ls01 ;
-	int ifound ;
-	int aux01 ;
-	int aux02 ;
-	int nt ;
-
-	j = 1 ;
-	ls01 = false ;
-	ifound = 0 ;
-	
-	//System.out.println(num);
-	while (j < (size)) {
-	    aux01 = number[j] ;
-	    aux02 = num + 1 ;
-	    if (aux01 < num) nt = 0 ;
-	    else if (!(aux01 < aux02)) nt = 0 ;
-	    else {
-		ls01 = true ;
-		ifound = 1 ;
-		j = size ;
-	    }
-	    j = j + 1 ;
-	}
-
-	return ifound ;
-    }
-
-
-    
-    // initialize array of integers with some
-    // some sequence
-    public int Init(int sz){
-	int j ;
-	int k ;
-	int aux01 ;
-	int aux02 ;
-
-	size = sz ;
-	number = new int[sz] ;
-	
-	j = 1 ;
-	k = size + 1 ;
-	while (j < (size)) {
-	    aux01 = 2 * j ;
-	    aux02 = k - 3 ;
-	    number[j] = aux01 + aux02 ;
-	    j = j + 1 ;
-	    k = k - 1 ;
-	}
-	return 0 ;	
-    }
-
-}
diff --git a/tests/LinearSearch.java b/tests/LinearSearch.java
deleted file mode 100644
index daddd94..0000000
--- a/tests/LinearSearch.java
+++ /dev/null
@@ -1,99 +0,0 @@
-class LinearSearch{
-    public static void main(String[] a){
-	System.out.println(new LS().Start(10));
-    }
-}
-
-
-// This class contains an array of integers and
-// methods to initialize, print and search the array
-// using Linear Search
-class LS {
-    int[] number ;
-    int size ;
-    
-    // Invoke methods to initialize, print and search
-    // for elements on the array
-    public int Start(int sz){
-	int aux01 ;
-	int aux02 ;
-
-	aux01 = this.Init(sz);
-	aux02 = this.Print();
-	System.out.println(9999);
-	System.out.println(this.Search(8));
-	System.out.println(this.Search(12)) ;
-	System.out.println(this.Search(17)) ;
-	System.out.println(this.Search(50)) ;
-	return 55 ;
-    }
-
-    // Print array of integers
-    public int Print(){
-	int j ;
-
-	j = 1 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-
-    // Search for a specific value (num) using
-    // linear search
-    public int Search(int num){
-	int j ;
-	boolean ls01 ;
-	int ifound ;
-	int aux01 ;
-	int aux02 ;
-	int nt ;
-
-	j = 1 ;
-	ls01 = false ;
-	ifound = 0 ;
-	
-	//System.out.println(num);
-	while (j < (size)) {
-	    aux01 = number[j] ;
-	    aux02 = num + 1 ;
-	    if (aux01 < num) nt = 0 ;
-	    else if (!(aux01 < aux02)) nt = 0 ;
-	    else {
-		ls01 = true ;
-		ifound = 1 ;
-		j = size ;
-	    }
-	    j = j + 1 ;
-	}
-
-	return ifound ;
-    }
-
-
-    
-    // initialize array of integers with some
-    // some sequence
-    public int Init(int sz){
-	int j ;
-	int k ;
-	int aux01 ;
-	int aux02 ;
-
-	size = sz ;
-	number = new int[sz] ;
-	
-	j = 1 ;
-	k = size + 1 ;
-	while (j < (size)) {
-	    aux01 = 2 * j ;
-	    aux02 = k - 3 ;
-	    number[j] = aux01 + aux02 ;
-	    j = j + 1 ;
-	    k = k - 1 ;
-	}
-	return 0 ;	
-    }
-
-}
diff --git a/tests/LinkedList-error.java b/tests/LinkedList-error.java
deleted file mode 100644
index 181b599..0000000
--- a/tests/LinkedList-error.java
+++ /dev/null
@@ -1,278 +0,0 @@
-class LinkedList{
-    public static void main(String[] a){
-	System.out.println(new LL().Start());
-    }
-}
-
-class Element {
-    int Age ;          
-    int Salary ;
-    boolean Married ;
-
-    // Initialize some class variables
-    public boolean Init(int v_Age, int v_Salary, boolean v_Married){
-	Age = v_Age ;
-	Salary = v_Salary ;
-	Married = v_Married ;
-	return true ;
-    }
-
-    public int GetAge(){
-	return Age ;
-    }
-    
-    public int GetSalary(){
-	return Salary ;
-    }
-
-    public boolean GetMarried(){
-	return Married ;
-    }
-
-    // This method returns true if the object "other"
-    // has the same values for age, salary and 
-    public boolean Equal(Element other){
-	boolean ret_val ;
-	int aux01 ;
-	int aux02 ;
-	int nt ;
-	ret_val = true ;
-
-	aux01 = other.GetAge();
-	if (!this.Compare(aux01,Age)) ret_val = false ;
-	else { 
-	    aux02 = other.GetSalary();
-	    if (!this.Compare(aux02,Salary)) ret_val = false ;
-	    else 
-		if (Married) 
-		    if (!other.GetMarried()) ret_val = false;
-		    else nt = 0 ;
-		else
-		    if (other.GetMarried()) ret_val = false;
-		    else nt = 0 ;
-	}
-
-	return ret_val ;
-    }
-
-    // This method compares two integers and
-    // returns true if they are equal and false
-    // otherwise
-    public boolean Compare(int num1 , int num2){
-	boolean retval ;
-	int aux02 ;
-	retval = false ;
-	aux02 = num2 + 1 ;
-	if (num1 < num2) retval = false ;
-	else if (!(num1 < aux02)) retval = false ;
-	else retval = true ;
-	return retval ;
-    }
-
-}
-
-class List{
-    Element elem ;
-    List next ;
-    boolean end ;
-
-    // Initialize the node list as the last node
-    public boolean Init(){
-	end = true ;
-	return true ;
-    }
-
-    // Initialize the values of a new node
-    public boolean InitNew(Element v_elem, List v_next, boolean v_end){
-	end = v_end ;
-	elem = v_elem ;
-	next = v_next ;
-	return true ;
-    }
-    
-    // Insert a new node at the beginning of the list
-    public List Insert(Element new_elem){
-	boolean ret_val ;
-	List aux03 ;
-	List aux02 ;
-	aux03 = this ;
-	aux02 = new List();
-	ret_val = aux02.InitNew(new_elem,aux03,false);
-	return aux02 ;
-    }
-    
-    
-    // Update the the pointer to the next node
-    public boolean SetNext(List v_next){
-	next = v_next ;
-	return 0 ;  //TE
-    }
-    
-    // Delete an element e from the list
-    public List Delete(Element e){
-	List my_head ;
-	boolean ret_val ;
-	boolean aux05;
-	List aux01 ;
-	List prev ;
-	boolean var_end ;
-	Element var_elem ;
-	int aux04 ;
-	int nt ;
-
-
-	my_head = this ;
-	ret_val = false ;
-	aux04 = 0 - 1 ;
-	aux01 = this ;
-	prev = this ;
-	var_end = end;
-	var_elem = elem ;
-	while ((!var_end) && (!ret_val)){
-	    if (e.Equal(var_elem)){
-		ret_val = true ;
-		if (aux04 < 0) { 
-		    // delete first element
-		    my_head = aux01.GetNext() ;
-		} 
-		else{ // delete a non first element
-		    System.out.println(0-555);
-		    aux05 = prev.SetNext(aux01.GetNext());
-		    System.out.println(0-555);
-		    
-		}
-	    } else nt = 0 ;
-	    if (!ret_val){
-		prev = aux01 ;
-		aux01 = aux01.GetNext() ;
-		var_end = aux01.GetEnd();
-		var_elem = aux01.GetElem();
-		aux04 = 1 ; 
-	    } else nt = 0 ;
-	}
-	return my_head ;
-    }
-    
-    
-    // Search for an element e on the list
-    public int Search(Element e){
-	int int_ret_val ;
-	List aux01 ;
-	Element var_elem ;
-	boolean var_end ;
-	int nt ;
-
-	int_ret_val = 0 ;
-	aux01 = this ;
-	var_end = end;
-	var_elem = elem ;
-	while (!var_end){
-	    if (e.Equal(var_elem)){
-		int_ret_val = 1 ;
-	    }
-	    else nt = 0 ;
-	    aux01 = aux01.GetNext() ;
-	    var_end = aux01.GetEnd();
-	    var_elem = aux01.GetElem();
-	}
-	return int_ret_val ;
-    }
-    
-    public boolean GetEnd(){
-	return end ;
-    }
-    
-    public Element GetElem(){
-	return elem ;
-    }
-    
-    public List GetNext(){
-	return next ;
-    }
-    
-    
-    // Print the linked list
-    public boolean Print(){
-	List aux01 ;
-	boolean var_end ;
-	Element  var_elem ;
-
-	aux01 = this ;
-	var_end = end ;
-	var_elem = elem ;
-	while (!var_end){
-	    System.out.println(var_elem.GetAge());
-	    aux01 = aux01.GetNext() ;
-	    var_end = aux01.GetEnd();
-	    var_elem = aux01.GetElem();
-	}
-
-	return true ;
-    }
-}
-    
-
-// this class invokes the methods to insert, delete,
-// search and print the linked list
-class LL{
-
-    public int Start(){
-
-	List head ;
-	List last_elem ;
-	boolean aux01 ;
-	Element el01 ;
-	Element el02 ;
-	Element el03 ;
-
-	last_elem = new List();
-	aux01 = last_elem.Init();
-	head = last_elem ;
-	aux01 = head.Init();
-	aux01 = head.Print();
-
-	// inserting first element
-	el01 = new Element();
-	aux01 = el01.Init(25,37000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(10000000);
-	// inserting second  element
-	el01 = new Element();
-	aux01 = el01.Init(39,42000,true);
-	el02 = el01 ;
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(10000000);
-	// inserting third element
-	el01 = new Element();
-	aux01 = el01.Init(22,34000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	el03 = new Element();
-	aux01 = el03.Init(27,34000,false);
-	System.out.println(head.Search(el02));
-	System.out.println(head.Search(el03));
-	System.out.println(10000000);
-	// inserting fourth element
-	el01 = new Element();
-	aux01 = el01.Init(28,35000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(2220000);
-
-	head = head.Delete(el02);
-	aux01 = head.Print();
-	System.out.println(33300000);
-
-
-	head = head.Delete(el01);
-	aux01 = head.Print();
-	System.out.println(44440000);
-	
-	return 0 ;
-	
-	
-    }
-    
-}
diff --git a/tests/LinkedList.java b/tests/LinkedList.java
deleted file mode 100644
index 69adc33..0000000
--- a/tests/LinkedList.java
+++ /dev/null
@@ -1,278 +0,0 @@
-class LinkedList{
-    public static void main(String[] a){
-	System.out.println(new LL().Start());
-    }
-}
-
-class Element {
-    int Age ;          
-    int Salary ;
-    boolean Married ;
-
-    // Initialize some class variables
-    public boolean Init(int v_Age, int v_Salary, boolean v_Married){
-	Age = v_Age ;
-	Salary = v_Salary ;
-	Married = v_Married ;
-	return true ;
-    }
-
-    public int GetAge(){
-	return Age ;
-    }
-    
-    public int GetSalary(){
-	return Salary ;
-    }
-
-    public boolean GetMarried(){
-	return Married ;
-    }
-
-    // This method returns true if the object "other"
-    // has the same values for age, salary and 
-    public boolean Equal(Element other){
-	boolean ret_val ;
-	int aux01 ;
-	int aux02 ;
-	int nt ;
-	ret_val = true ;
-
-	aux01 = other.GetAge();
-	if (!this.Compare(aux01,Age)) ret_val = false ;
-	else { 
-	    aux02 = other.GetSalary();
-	    if (!this.Compare(aux02,Salary)) ret_val = false ;
-	    else 
-		if (Married) 
-		    if (!other.GetMarried()) ret_val = false;
-		    else nt = 0 ;
-		else
-		    if (other.GetMarried()) ret_val = false;
-		    else nt = 0 ;
-	}
-
-	return ret_val ;
-    }
-
-    // This method compares two integers and
-    // returns true if they are equal and false
-    // otherwise
-    public boolean Compare(int num1 , int num2){
-	boolean retval ;
-	int aux02 ;
-	retval = false ;
-	aux02 = num2 + 1 ;
-	if (num1 < num2) retval = false ;
-	else if (!(num1 < aux02)) retval = false ;
-	else retval = true ;
-	return retval ;
-    }
-
-}
-
-class List{
-    Element elem ;
-    List next ;
-    boolean end ;
-
-    // Initialize the node list as the last node
-    public boolean Init(){
-	end = true ;
-	return true ;
-    }
-
-    // Initialize the values of a new node
-    public boolean InitNew(Element v_elem, List v_next, boolean v_end){
-	end = v_end ;
-	elem = v_elem ;
-	next = v_next ;
-	return true ;
-    }
-    
-    // Insert a new node at the beginning of the list
-    public List Insert(Element new_elem){
-	boolean ret_val ;
-	List aux03 ;
-	List aux02 ;
-	aux03 = this ;
-	aux02 = new List();
-	ret_val = aux02.InitNew(new_elem,aux03,false);
-	return aux02 ;
-    }
-    
-    
-    // Update the the pointer to the next node
-    public boolean SetNext(List v_next){
-	next = v_next ;
-	return true ;
-    }
-    
-    // Delete an element e from the list
-    public List Delete(Element e){
-	List my_head ;
-	boolean ret_val ;
-	boolean aux05;
-	List aux01 ;
-	List prev ;
-	boolean var_end ;
-	Element var_elem ;
-	int aux04 ;
-	int nt ;
-
-
-	my_head = this ;
-	ret_val = false ;
-	aux04 = 0 - 1 ;
-	aux01 = this ;
-	prev = this ;
-	var_end = end;
-	var_elem = elem ;
-	while ((!var_end) && (!ret_val)){
-	    if (e.Equal(var_elem)){
-		ret_val = true ;
-		if (aux04 < 0) { 
-		    // delete first element
-		    my_head = aux01.GetNext() ;
-		} 
-		else{ // delete a non first element
-		    System.out.println(0-555);
-		    aux05 = prev.SetNext(aux01.GetNext());
-		    System.out.println(0-555);
-		    
-		}
-	    } else nt = 0 ;
-	    if (!ret_val){
-		prev = aux01 ;
-		aux01 = aux01.GetNext() ;
-		var_end = aux01.GetEnd();
-		var_elem = aux01.GetElem();
-		aux04 = 1 ; 
-	    } else nt = 0 ;
-	}
-	return my_head ;
-    }
-    
-    
-    // Search for an element e on the list
-    public int Search(Element e){
-	int int_ret_val ;
-	List aux01 ;
-	Element var_elem ;
-	boolean var_end ;
-	int nt ;
-
-	int_ret_val = 0 ;
-	aux01 = this ;
-	var_end = end;
-	var_elem = elem ;
-	while (!var_end){
-	    if (e.Equal(var_elem)){
-		int_ret_val = 1 ;
-	    }
-	    else nt = 0 ;
-	    aux01 = aux01.GetNext() ;
-	    var_end = aux01.GetEnd();
-	    var_elem = aux01.GetElem();
-	}
-	return int_ret_val ;
-    }
-    
-    public boolean GetEnd(){
-	return end ;
-    }
-    
-    public Element GetElem(){
-	return elem ;
-    }
-    
-    public List GetNext(){
-	return next ;
-    }
-    
-    
-    // Print the linked list
-    public boolean Print(){
-	List aux01 ;
-	boolean var_end ;
-	Element  var_elem ;
-
-	aux01 = this ;
-	var_end = end ;
-	var_elem = elem ;
-	while (!var_end){
-	    System.out.println(var_elem.GetAge());
-	    aux01 = aux01.GetNext() ;
-	    var_end = aux01.GetEnd();
-	    var_elem = aux01.GetElem();
-	}
-
-	return true ;
-    }
-}
-    
-
-// this class invokes the methods to insert, delete,
-// search and print the linked list
-class LL{
-
-    public int Start(){
-
-	List head ;
-	List last_elem ;
-	boolean aux01 ;
-	Element el01 ;
-	Element el02 ;
-	Element el03 ;
-
-	last_elem = new List();
-	aux01 = last_elem.Init();
-	head = last_elem ;
-	aux01 = head.Init();
-	aux01 = head.Print();
-
-	// inserting first element
-	el01 = new Element();
-	aux01 = el01.Init(25,37000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(10000000);
-	// inserting second  element
-	el01 = new Element();
-	aux01 = el01.Init(39,42000,true);
-	el02 = el01 ;
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(10000000);
-	// inserting third element
-	el01 = new Element();
-	aux01 = el01.Init(22,34000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	el03 = new Element();
-	aux01 = el03.Init(27,34000,false);
-	System.out.println(head.Search(el02));
-	System.out.println(head.Search(el03));
-	System.out.println(10000000);
-	// inserting fourth element
-	el01 = new Element();
-	aux01 = el01.Init(28,35000,false);
-	head = head.Insert(el01);
-	aux01 = head.Print();
-	System.out.println(2220000);
-
-	head = head.Delete(el02);
-	aux01 = head.Print();
-	System.out.println(33300000);
-
-
-	head = head.Delete(el01);
-	aux01 = head.Print();
-	System.out.println(44440000);
-	
-	return 0 ;
-	
-	
-    }
-    
-}
diff --git a/tests/MoreThan4-error.java b/tests/MoreThan4-error.java
deleted file mode 100644
index 9e8f63e..0000000
--- a/tests/MoreThan4-error.java
+++ /dev/null
@@ -1,29 +0,0 @@
-class MoreThan4{
-    public static void main(String[] a){
-        System.out.println(new MT4().Start(1,2,3,4,5,6));
-    }
-}
-
-class MT4 {
-    public int Start(int p1, int p2, int p3 , int p4, int p5, int p6){
-	int aux ;
-        System.out.println(p1);
-        System.out.println(p2);
-        System.out.println(p3);
-        System.out.println(p4);
-        System.out.println(p5);
-        System.out.println(p6);
-		aux = this.Change(p6,p5,p4,p3,p2);//TE
-	return aux ;
-    }
-
-    public int Change(int p1, int p2, int p3 , int p4, int p5, int p6){
-        System.out.println(p1);
-        System.out.println(p2);
-        System.out.println(p3);
-        System.out.println(p4);
-        System.out.println(p5);
-        System.out.println(p6);
-	return 0 ;
-    }
-}
diff --git a/tests/MoreThan4.java b/tests/MoreThan4.java
deleted file mode 100644
index 4960f01..0000000
--- a/tests/MoreThan4.java
+++ /dev/null
@@ -1,29 +0,0 @@
-class MoreThan4{
-    public static void main(String[] a){
-        System.out.println(new MT4().Start(1,2,3,4,5,6));
-    }
-}
-
-class MT4 {
-    public int Start(int p1, int p2, int p3 , int p4, int p5, int p6){
-	int aux ;
-        System.out.println(p1);
-        System.out.println(p2);
-        System.out.println(p3);
-        System.out.println(p4);
-        System.out.println(p5);
-        System.out.println(p6);
-	aux = this.Change(p6,p5,p4,p3,p2,p1);
-	return aux ;
-    }
-
-    public int Change(int p1, int p2, int p3 , int p4, int p5, int p6){
-        System.out.println(p1);
-        System.out.println(p2);
-        System.out.println(p3);
-        System.out.println(p4);
-        System.out.println(p5);
-        System.out.println(p6);
-	return 0 ;
-    }
-}
diff --git a/tests/QuickSort-error.java b/tests/QuickSort-error.java
deleted file mode 100644
index ff4ea2e..0000000
--- a/tests/QuickSort-error.java
+++ /dev/null
@@ -1,112 +0,0 @@
-class QuickSort{
-    public static void main(String[] a){
-	System.out.println(new QS().Start(10));
-    }
-}
-
-
-// This class contains the array of integers and
-// methods to initialize, print and sort the array
-// using Quicksort
-class QS{
-    
-    int number ; //TE
-    int size ;
-
-    // Invoke the Initialization, Sort and Printing
-    // Methods
-    public int Start(int sz){
-	int aux01 ;
-	aux01 = this.Init(sz);
-	aux01 = this.Print();
-	System.out.println(9999);
-	aux01 = size - 1 ;
-	aux01 = this.Sort(0,aux01);
-	aux01 = this.Print();
-	return 0 ;
-    }
-
- 
-    // Sort array of integers using Quicksort method
-    public int Sort(int left, int right){
-	int v ;
-	int i ;
-	int j ;
-	int nt;
-	int t ;
-	boolean cont01;
-	boolean cont02;
-	int aux03 ;
-	t = 0 ;
-	if (left < right){
-	    v = number[right] ;
-	    i = left - 1 ;
-	    j = right ;
-	    cont01 = true ;
-	    while (cont01){
-		cont02 = true ;
-		while (cont02){
-		    i = i + 1 ;
-		    aux03 = number[i] ;
-		    if (!(aux03<v)) cont02 = false ;
-		    else cont02 = true ;
-		}
-		cont02 = true ;
-		while (cont02){
-		    j = j - 1 ;
-		    aux03 = number[j] ;
-		    if (!(v < aux03)) cont02 = false ;
-		    else cont02 = true ;
-		}
-
-
-		t = number[i] ;
-		number[i] = number[j] ;
-		number[j] = t ;
-		//aux03 = i + 1 ;
-		if ( j < (i+1)) cont01 = false ;
-		else cont01 = true ;
-	    }
-	    number[j] = number[i] ;
-	    number[i] = number[right] ;
-	    number[right] = t ;
-	    nt = this.Sort(left,i-1);
-	    nt = this.Sort(i+1,right);
-	}
-	else nt = 0 ;
-	return 0 ;
-    }
-
-    
-    // Print array of integers
-    public int Print(){
-	int j ;
-	j = 0 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-    
-
-    // Initialize array of integers
-    public int Init(int sz){
-	size = sz ;
-	number = new int[sz] ;
-	
-	number[0] = 20 ;
-	number[1] = 7  ; 
-	number[2] = 12 ;
-	number[3] = 18 ;
-	number[4] = 2  ; 
-	number[5] = 11 ;
-	number[6] = 6  ; 
-	number[7] = 9  ; 
-	number[8] = 19 ; 
-	number[9] = 5  ;
-	
-	return 0 ;	
-    }
-
-}
diff --git a/tests/QuickSort.java b/tests/QuickSort.java
deleted file mode 100644
index 5893390..0000000
--- a/tests/QuickSort.java
+++ /dev/null
@@ -1,112 +0,0 @@
-class QuickSort{
-    public static void main(String[] a){
-	System.out.println(new QS().Start(10));
-    }
-}
-
-
-// This class contains the array of integers and
-// methods to initialize, print and sort the array
-// using Quicksort
-class QS{
-    
-    int[] number ;
-    int size ;
-
-    // Invoke the Initialization, Sort and Printing
-    // Methods
-    public int Start(int sz){
-	int aux01 ;
-	aux01 = this.Init(sz);
-	aux01 = this.Print();
-	System.out.println(9999);
-	aux01 = size - 1 ;
-	aux01 = this.Sort(0,aux01);
-	aux01 = this.Print();
-	return 0 ;
-    }
-
- 
-    // Sort array of integers using Quicksort method
-    public int Sort(int left, int right){
-	int v ;
-	int i ;
-	int j ;
-	int nt;
-	int t ;
-	boolean cont01;
-	boolean cont02;
-	int aux03 ;
-	t = 0 ;
-	if (left < right){
-	    v = number[right] ;
-	    i = left - 1 ;
-	    j = right ;
-	    cont01 = true ;
-	    while (cont01){
-		cont02 = true ;
-		while (cont02){
-		    i = i + 1 ;
-		    aux03 = number[i] ;
-		    if (!(aux03<v)) cont02 = false ;
-		    else cont02 = true ;
-		}
-		cont02 = true ;
-		while (cont02){
-		    j = j - 1 ;
-		    aux03 = number[j] ;
-		    if (!(v < aux03)) cont02 = false ;
-		    else cont02 = true ;
-		}
-
-
-		t = number[i] ;
-		number[i] = number[j] ;
-		number[j] = t ;
-		//aux03 = i + 1 ;
-		if ( j < (i+1)) cont01 = false ;
-		else cont01 = true ;
-	    }
-	    number[j] = number[i] ;
-	    number[i] = number[right] ;
-	    number[right] = t ;
-	    nt = this.Sort(left,i-1);
-	    nt = this.Sort(i+1,right);
-	}
-	else nt = 0 ;
-	return 0 ;
-    }
-
-    
-    // Print array of integers
-    public int Print(){
-	int j ;
-	j = 0 ;
-	while (j < (size)) {
-	    System.out.println(number[j]);
-	    j = j + 1 ;
-	}
-	return 0 ;
-    }
-    
-
-    // Initialize array of integers
-    public int Init(int sz){
-	size = sz ;
-	number = new int[sz] ;
-	
-	number[0] = 20 ;
-	number[1] = 7  ; 
-	number[2] = 12 ;
-	number[3] = 18 ;
-	number[4] = 2  ; 
-	number[5] = 11 ;
-	number[6] = 6  ; 
-	number[7] = 9  ; 
-	number[8] = 19 ; 
-	number[9] = 5  ;
-	
-	return 0 ;	
-    }
-
-}
diff --git a/tests/SimpleArithmetic.java b/tests/SimpleArithmetic.java
deleted file mode 100644
index 94c780e..0000000
--- a/tests/SimpleArithmetic.java
+++ /dev/null
@@ -1,6 +0,0 @@
-class SimpleArithmetic{
-    public static void main(String[] a){
-        int x;
-        x = 1 + 2;
-    }
-}
diff --git a/tests/TreeVisitor-error.java b/tests/TreeVisitor-error.java
deleted file mode 100644
index b41f3d1..0000000
--- a/tests/TreeVisitor-error.java
+++ /dev/null
@@ -1,376 +0,0 @@
-// The classes are basically the same as the BinaryTree 
-// file except the visitor classes and the accept method
-// in the Tree class
-
-class TreeVisitor{
-    public static void main(String[] a){
-	System.out.println(new TV().Start());
-    }
-}
-
-class TV {
-
-    public int Start(){
-	Tree root ;
-	boolean ntb ;
-	int nti ;
-	MyVisitor v ;
-
-	root = new Tree();
-	ntb = root.Init(16);
-	ntb = root.Print();
-	System.out.println(100000000);
-	ntb = root.Insert(8) ;
-	ntb = root.Insert(24) ;
-	ntb = root.Insert(4) ;
-	ntb = root.Insert(12) ;
-	ntb = root.Insert(20) ;
-	ntb = root.Insert(28) ;
-	ntb = root.Insert(14) ;
-	ntb = root.Print();
-	System.out.println(100000000);
-	v = new MyVisitor();
-	System.out.println(50000000);
-	nti = root.accept(v);
-	System.out.println(100000000);
-	System.out.println(root.Search(24));
-	System.out.println(root.Search(12));
-	System.out.println(root.Search(16));
-	System.out.println(root.Search(50));
-	System.out.println(root.Search(12));
-	ntb = root.Delete(12);
-	ntb = root.Print();
-	System.out.println(root.Search(12));
-
-	return 0 ;
-    }
-
-}
-
-
-class Tree{
-    Tree left ;
-    Tree right;
-    int key ;
-    boolean has_left ;
-    boolean has_right ;
-    Tree my_null ;
-
-
-
-    //Tree new_node ;
-    //Tree current_node ;
-    //Tree parent_node ;
-    
-   // boolean ntb ;
-    //boolean cont ;
-    //boolean found ;
-    //int ifound ;
-  //  boolean is_root ;
-  //  int     nti ;
-  //  int key_aux ;
-   // int auxkey1 ;
-   // int auxkey2 ;
-
-    public boolean Init(int v_key){
-	key = v_key ;
-	has_left = false ;
-	has_right = false ;
-	return true ;
-    }
-
-    public boolean SetRight(Tree rn){
-	right = rn ;
-	return true ;
-    }
-
-    public boolean SetLeft(Tree ln){
-	left = ln ;
-	return true ;
-    }
-
-    public Tree GetRight(){
-	return right ;
-    }
-
-    public Tree GetLeft(){
-	return left;
-    }
-
-    public int GetKey(){
-	return key ;
-    }
-
-    public boolean SetKey(int v_key){
-	key = v_key ;
-	return true ;
-    }
-
-    public boolean GetHas_Right(){
-	return has_right ;
-    }
-
-    public boolean GetHas_Left(){
-	return has_left ;
-    }
-
-    public boolean SetHas_Left(boolean val){
-	 has_left = val ;
-	 return true ;
-    }
-
-    public boolean SetHas_Right(boolean val){
-	 has_right = val ;
-	 return true ;
-    }
-
-    public boolean Compare(int num1 , int num2){
-	boolean ntb ;
-	int nti ;
-
-	ntb = false ;
-	nti = num2 + 1 ;
-	if (num1 < num2) ntb = false ;
-	else if (!(num1 < nti)) ntb = false ;
-	else ntb = true ;
-	return ntb ;
-    }
-
-    public boolean Insert(int v_key){
-	Tree new_node ;
-	boolean ntb ;
-	Tree current_node ;
-	boolean cont ;
-	int key_aux ;
-
-	new_node = new Tree();
-	ntb = new_node.Init(v_key) ;
-	current_node = this ;
-	cont = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux){
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Left(true);
-		    ntb = current_node.SetLeft(new_node);
-		}
-	    }
-	    else{
-		if (current_node.GetHas_Right())
-		    current_node = current_node.GetRight() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Right(true);
-		    ntb = current_node.SetRight(new_node);
-		}
-	    }
-	}
-	return true ;
-    }
-
-    public boolean Delete(int v_key){
-	Tree current_node ;
-	Tree parent_node ;
-	boolean cont ;
-	boolean found ;
-	boolean ntb ;
-	boolean is_root ;
-	int key_aux ;
-
-	current_node = this ;
-	parent_node = this ;
-	cont = true ;
-	found = false ;
-	is_root = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left()){
-		    parent_node = current_node ;
-		    current_node = current_node.GetLeft() ;
-		}
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right()){
-			parent_node = current_node ;
-			current_node = current_node.GetRight() ;
-		    }
-		    else cont = false ;
-		else { 
-		    if (is_root) 
-			if (!current_node.GetHas_Right() && 
-			    !current_node.GetHas_Left() )
-			    ntb = true ;
-			else 
-			    ntb = this.Remove(parent_node,current_node); 
-		    else ntb = this.Remove(parent_node,current_node);
-		    found = true ;
-		    cont = false ;
-		}
-	    is_root = false ;
-	}
-	return found ;
-    }
-
-    public boolean Remove(Tree p_node, Tree c_node){
-	boolean ntb ;
-	int auxkey1 ;
-	int auxkey2 ;
-	
-	if (c_node.GetHas_Left()) 
-	    ntb = this.RemoveLeft(p_node,c_node) ;
-	else 
-	    if (c_node.GetHas_Right())
-		ntb = this.RemoveRight(p_node,c_node) ;
-	    else {
-		auxkey1 = c_node.GetKey();
-		auxkey2 = (p_node.GetLeft()).GetKey() ;
-		if (this.Compare(auxkey1,auxkey2)) {
-		    ntb = p_node.SetLeft(my_null);
-		    ntb = p_node.SetHas_Left(false);
-		}
-		else {
-		    ntb = p_node.SetRight(my_null);
-		    ntb = p_node.SetHas_Right(false);
-		}
-	    }
-	return true ;
-    }
-
-    public boolean RemoveRight(Tree p_node, Tree c_node){
-	boolean ntb ;
-	while (c_node.GetHas_Right()){
-	    ntb = c_node.SetKey((c_node.GetRight()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetRight() ;
-	}
-	ntb = p_node.SetRight(my_null);
-	ntb = p_node.SetHas_Right(false);
-	return true ;
-    }
-
-    public boolean RemoveLeft(Tree p_node, Tree c_node){
-	boolean ntb ;
-	while (c_node.GetHas_Left()){
-	    ntb = c_node.SetKey((c_node.GetLeft()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetLeft() ;
-	}
-	ntb = p_node.SetLeft(my_null);
-	ntb = p_node.SetHas_Left(false);
-	return true ;
-    }
-
-
-    public int Search(int v_key){
-	Tree current_node ;
-	int ifound ;
-	boolean cont ;
-	int key_aux ;
-
-	current_node = this ;
-	cont = true ;
-	ifound = 0 ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right())
-			current_node = current_node.GetRight() ;
-		    else cont = false ;
-		else { 
-		    ifound = 1 ;
-		    cont = false ;
-		}
-	}
-	return ifound ;
-    }
-
-    public boolean Print(){
-	boolean ntb ;
-	Tree current_node ;
-
-	current_node = this ;
-	ntb = this.RecPrint(current_node);
-	return true ;
-    }
-
-    public boolean RecPrint(Tree node){
-	boolean ntb ;
-
-	if (node.GetHas_Left()){
-	    ntb = this.RecPrint(node.GetLeft());
-	} else ntb = true ;
-	System.out.println(node.GetKey());
-	if (node.GetHas_Right()){
-	    ntb = this.RecPrint(node.GetRight());
-	} else ntb = true ;
-	return true ;
-    }
-    
-    public int accept(Visitor v){
-	int nti ;
-
-	System.out.println(333);
-	nti = v.visit(this) ;
-	return 0 ;
-    }
-
-}
-
-  
-
-class Visitor {
-    Tree l ;
-    //Tree r ;  //TE
-
-    public int visit(Tree n){
-	int nti ;
-
-	if (n.GetHas_Right()){
-	    r = n.GetRight() ;
-	    nti = r.accept(this) ; }
-	else nti = 0 ;
-
-	if (n.GetHas_Left()) {
-	    l = n.GetLeft(); 
-	    nti = l.accept(this) ; }
-	else nti = 0 ;
-
-	return 0;
-    }
-
-}
-
-
-class MyVisitor extends Visitor {
-
-	Tree r;
-	
-    public int visit(Tree n){
-	int nti ;
-
-	if (n.GetHas_Right()){
-	    r = n.GetRight() ;
-	    nti = r.accept(this) ; }
-	else nti = 0 ;
-
-	System.out.println(n.GetKey());
-
-	if (n.GetHas_Left()) {
-	    l = n.GetLeft(); 
-	    nti =l.accept(this) ; }
-	else nti = 0 ;
-
-	return 0;
-    }
-
-}
diff --git a/tests/TreeVisitor.java b/tests/TreeVisitor.java
deleted file mode 100644
index 8debfe6..0000000
--- a/tests/TreeVisitor.java
+++ /dev/null
@@ -1,374 +0,0 @@
-// The classes are basically the same as the BinaryTree 
-// file except the visitor classes and the accept method
-// in the Tree class
-
-class TreeVisitor{
-    public static void main(String[] a){
-	System.out.println(new TV().Start());
-    }
-}
-
-class TV {
-
-    public int Start(){
-	Tree root ;
-	boolean ntb ;
-	int nti ;
-	MyVisitor v ;
-
-	root = new Tree();
-	ntb = root.Init(16);
-	ntb = root.Print();
-	System.out.println(100000000);
-	ntb = root.Insert(8) ;
-	ntb = root.Insert(24) ;
-	ntb = root.Insert(4) ;
-	ntb = root.Insert(12) ;
-	ntb = root.Insert(20) ;
-	ntb = root.Insert(28) ;
-	ntb = root.Insert(14) ;
-	ntb = root.Print();
-	System.out.println(100000000);
-	v = new MyVisitor();
-	System.out.println(50000000);
-	nti = root.accept(v);
-	System.out.println(100000000);
-	System.out.println(root.Search(24));
-	System.out.println(root.Search(12));
-	System.out.println(root.Search(16));
-	System.out.println(root.Search(50));
-	System.out.println(root.Search(12));
-	ntb = root.Delete(12);
-	ntb = root.Print();
-	System.out.println(root.Search(12));
-
-	return 0 ;
-    }
-
-}
-
-
-class Tree{
-    Tree left ;
-    Tree right;
-    int key ;
-    boolean has_left ;
-    boolean has_right ;
-    Tree my_null ;
-
-
-
-    //Tree new_node ;
-    //Tree current_node ;
-    //Tree parent_node ;
-    
-   // boolean ntb ;
-    //boolean cont ;
-    //boolean found ;
-    //int ifound ;
-  //  boolean is_root ;
-  //  int     nti ;
-  //  int key_aux ;
-   // int auxkey1 ;
-   // int auxkey2 ;
-
-    public boolean Init(int v_key){
-	key = v_key ;
-	has_left = false ;
-	has_right = false ;
-	return true ;
-    }
-
-    public boolean SetRight(Tree rn){
-	right = rn ;
-	return true ;
-    }
-
-    public boolean SetLeft(Tree ln){
-	left = ln ;
-	return true ;
-    }
-
-    public Tree GetRight(){
-	return right ;
-    }
-
-    public Tree GetLeft(){
-	return left;
-    }
-
-    public int GetKey(){
-	return key ;
-    }
-
-    public boolean SetKey(int v_key){
-	key = v_key ;
-	return true ;
-    }
-
-    public boolean GetHas_Right(){
-	return has_right ;
-    }
-
-    public boolean GetHas_Left(){
-	return has_left ;
-    }
-
-    public boolean SetHas_Left(boolean val){
-	 has_left = val ;
-	 return true ;
-    }
-
-    public boolean SetHas_Right(boolean val){
-	 has_right = val ;
-	 return true ;
-    }
-
-    public boolean Compare(int num1 , int num2){
-	boolean ntb ;
-	int nti ;
-
-	ntb = false ;
-	nti = num2 + 1 ;
-	if (num1 < num2) ntb = false ;
-	else if (!(num1 < nti)) ntb = false ;
-	else ntb = true ;
-	return ntb ;
-    }
-
-    public boolean Insert(int v_key){
-	Tree new_node ;
-	boolean ntb ;
-	Tree current_node ;
-	boolean cont ;
-	int key_aux ;
-
-	new_node = new Tree();
-	ntb = new_node.Init(v_key) ;
-	current_node = this ;
-	cont = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux){
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Left(true);
-		    ntb = current_node.SetLeft(new_node);
-		}
-	    }
-	    else{
-		if (current_node.GetHas_Right())
-		    current_node = current_node.GetRight() ;
-		else {
-		    cont = false ;
-		    ntb = current_node.SetHas_Right(true);
-		    ntb = current_node.SetRight(new_node);
-		}
-	    }
-	}
-	return true ;
-    }
-
-    public boolean Delete(int v_key){
-	Tree current_node ;
-	Tree parent_node ;
-	boolean cont ;
-	boolean found ;
-	boolean ntb ;
-	boolean is_root ;
-	int key_aux ;
-
-	current_node = this ;
-	parent_node = this ;
-	cont = true ;
-	found = false ;
-	is_root = true ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left()){
-		    parent_node = current_node ;
-		    current_node = current_node.GetLeft() ;
-		}
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right()){
-			parent_node = current_node ;
-			current_node = current_node.GetRight() ;
-		    }
-		    else cont = false ;
-		else { 
-		    if (is_root) 
-			if (!current_node.GetHas_Right() && 
-			    !current_node.GetHas_Left() )
-			    ntb = true ;
-			else 
-			    ntb = this.Remove(parent_node,current_node); 
-		    else ntb = this.Remove(parent_node,current_node);
-		    found = true ;
-		    cont = false ;
-		}
-	    is_root = false ;
-	}
-	return found ;
-    }
-
-    public boolean Remove(Tree p_node, Tree c_node){
-	boolean ntb ;
-	int auxkey1 ;
-	int auxkey2 ;
-	
-	if (c_node.GetHas_Left()) 
-	    ntb = this.RemoveLeft(p_node,c_node) ;
-	else 
-	    if (c_node.GetHas_Right())
-		ntb = this.RemoveRight(p_node,c_node) ;
-	    else {
-		auxkey1 = c_node.GetKey();
-		auxkey2 = (p_node.GetLeft()).GetKey() ;
-		if (this.Compare(auxkey1,auxkey2)) {
-		    ntb = p_node.SetLeft(my_null);
-		    ntb = p_node.SetHas_Left(false);
-		}
-		else {
-		    ntb = p_node.SetRight(my_null);
-		    ntb = p_node.SetHas_Right(false);
-		}
-	    }
-	return true ;
-    }
-
-    public boolean RemoveRight(Tree p_node, Tree c_node){
-	boolean ntb ;
-	while (c_node.GetHas_Right()){
-	    ntb = c_node.SetKey((c_node.GetRight()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetRight() ;
-	}
-	ntb = p_node.SetRight(my_null);
-	ntb = p_node.SetHas_Right(false);
-	return true ;
-    }
-
-    public boolean RemoveLeft(Tree p_node, Tree c_node){
-	boolean ntb ;
-	while (c_node.GetHas_Left()){
-	    ntb = c_node.SetKey((c_node.GetLeft()).GetKey());
-	    p_node = c_node ;
-	    c_node = c_node.GetLeft() ;
-	}
-	ntb = p_node.SetLeft(my_null);
-	ntb = p_node.SetHas_Left(false);
-	return true ;
-    }
-
-
-    public int Search(int v_key){
-	Tree current_node ;
-	int ifound ;
-	boolean cont ;
-	int key_aux ;
-
-	current_node = this ;
-	cont = true ;
-	ifound = 0 ;
-	while (cont){
-	    key_aux = current_node.GetKey();
-	    if (v_key < key_aux)
-		if (current_node.GetHas_Left())
-		    current_node = current_node.GetLeft() ;
-		else cont = false ;
-	    else 
-		if (key_aux < v_key)
-		    if (current_node.GetHas_Right())
-			current_node = current_node.GetRight() ;
-		    else cont = false ;
-		else { 
-		    ifound = 1 ;
-		    cont = false ;
-		}
-	}
-	return ifound ;
-    }
-
-    public boolean Print(){
-	boolean ntb ;
-	Tree current_node ;
-
-	current_node = this ;
-	ntb = this.RecPrint(current_node);
-	return true ;
-    }
-
-    public boolean RecPrint(Tree node){
-	boolean ntb ;
-
-	if (node.GetHas_Left()){
-	    ntb = this.RecPrint(node.GetLeft());
-	} else ntb = true ;
-	System.out.println(node.GetKey());
-	if (node.GetHas_Right()){
-	    ntb = this.RecPrint(node.GetRight());
-	} else ntb = true ;
-	return true ;
-    }
-    
-    public int accept(Visitor v){
-	int nti ;
-
-	System.out.println(333);
-	nti = v.visit(this) ;
-	return 0 ;
-    }
-
-}
-
-  
-
-class Visitor {
-    Tree l ;
-    Tree r ;
-
-    public int visit(Tree n){
-	int nti ;
-
-	if (n.GetHas_Right()){
-	    r = n.GetRight() ;
-	    nti = r.accept(this) ; }
-	else nti = 0 ;
-
-	if (n.GetHas_Left()) {
-	    l = n.GetLeft(); 
-	    nti = l.accept(this) ; }
-	else nti = 0 ;
-
-	return 0;
-    }
-
-}
-
-
-class MyVisitor extends Visitor {
-
-    public int visit(Tree n){
-	int nti ;
-
-	if (n.GetHas_Right()){
-	    r = n.GetRight() ;
-	    nti = r.accept(this) ; }
-	else nti = 0 ;
-
-	System.out.println(n.GetKey());
-
-	if (n.GetHas_Left()) {
-	    l = n.GetLeft(); 
-	    nti =l.accept(this) ; }
-	else nti = 0 ;
-
-	return 0;
-    }
-
-}