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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. abstract class A {
  8.     public void coucou(){
  9.     	System.out.println("Je suis A");
  10.     }	
  11. }
  12.  
  13. class B extends A {
  14. 	@Override
  15.     public void coucou(){
  16.     	System.out.println("Je suis B");
  17.     }	
  18. }
  19.  
  20. class C extends A {
  21. 	@Override
  22.     public void coucou(){
  23.     	System.out.println("Je suis C");
  24.     }	
  25. }
  26.  
  27. class UneClasse {
  28. 	public void uneMethode(A a){
  29. 		a.coucou();
  30. 	}
  31. }
  32.  
  33. class Ideone
  34. {
  35. 	public static void main (String[] args) throws java.lang.Exception
  36. 	{
  37. 		UneClasse c = new UneClasse();
  38. 		c.uneMethode(new A(){});
  39. 		A a1 = new B();
  40. 		c.uneMethode(a1);
  41. 		A a2 = new C();
  42. 		c.uneMethode(a2);
  43. 	}
  44. }
Success #stdin #stdout 0.1s 321600KB
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Standard input is empty
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Je suis A
Je suis B
Je suis C
https://ideone.com/Jdl8w6
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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