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  1. class A {   
  2.     public void m(A a) { System.out.println("1"); }
  3. }
  4.  
  5. class B extends A {
  6.     public void m(B b) { System.out.println("2"); }
  7.     public void m(A a) { System.out.println("3"); }
  8. }
  9.  
  10. class Puzzle {
  11.     public static void main(String[] args) {
  12.         B b = new B();
  13.         A a = b;
  14.         a.m(b);
  15.     }
  16. }
Success #stdin #stdout 0.1s 320320KB
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https://ideone.com/rUOtfB
language:
Java (HotSpot 12)
created:
9 years ago
visibility:
public

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