1 files changed, 22 insertions, 0 deletions
diff --git a/output/ex20.java b/output/ex20.java
new file mode 100644
index 0000000..87dca29
--- /dev/null
+++ b/output/ex20.java
@@ -0,0 +1,22 @@
+class ex20 {
+    public static void main(String[] a){
+        System.out.println(new A().start());
+    }
+}
+
+class C extends B{
+}
+
+class B extends A{
+}
+
+class A{
+
+    A a;
+    C c;
+
+    public int start(){
+        a = c;
+        return 0;
+    }
+}