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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. class A {
  5.     public A() {
  6.         if (B.class.isInstance(this)) {
  7.             System.out.println("tada");
  8.         } else 
  9.         if (C.class.isInstance(this)) {
  10.             System.out.println("bum");
  11.         }
  12.     }
  13.  
  14. }
  15.  
  16. class B extends A {
  17.     private String b;
  18. }
  19.  
  20. class C extends A {
  21.     private String c;
  22. }
  23.  
  24. class Main
  25. {
  26.     public static void main (String[] args) throws java.lang.Exception
  27.     {
  28.         new B();
  29.         new C();  
  30.     }
  31. }
Success #stdin #stdout 0.07s 380224KB
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1
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stdout
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tada
bum
https://ideone.com/szODOD
language:
Java (12.0.1)
created:
11 years ago
visibility:
public

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