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  1. import java.util.*;
  2. import java.lang.*;
  3. import java.io.*;
  4.  
  5. abstract class A {
  6.     public void coucou(){
  7.     	System.out.println("Je suis A");
  8.     }	
  9. }
  10.  
  11. class B extends A {
  12. 	@Override
  13.     public void coucou(){
  14.     	System.out.println("Je suis B");
  15.     }	
  16. }
  17.  
  18. class C extends A {
  19. 	@Override
  20.     public void coucou(){
  21.     	System.out.println("Je suis C");
  22.     }	
  23. }
  24.  
  25. class UneClasse {
  26. 	public void uneMethode(A a){
  27. 		System.out.println("Signature (A) : ");
  28. 		a.coucou();
  29. 	}
  30.  
  31. 	public void uneMethode(B a){
  32. 		System.out.println("Signature (B) : ");
  33. 		a.coucou();
  34. 	}
  35. }
  36.  
  37. class Ideone {
  38. 	public static void main (String[] args) throws java.lang.Exception {
  39. 		UneClasse c = new UneClasse();
  40. 		c.uneMethode(new A(){});
  41. 		B a1 = new B();
  42. 		c.uneMethode(a1);
  43. 		C a2 = new C();
  44. 		c.uneMethode(a2);
  45. 	}
  46. }
Success #stdin #stdout 0.1s 320512KB
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stdin
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Standard input is empty
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Signature (A) : 
Je suis A
Signature (B) : 
Je suis B
Signature (A) : 
Je suis C
https://ideone.com/aXx6I8
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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