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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. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	public interface Fruit {
  11. 		public void apple();
  12. 	}
  13.  
  14. 	Fruit interfaceFruit;
  15.  
  16. 	public void apple(){
  17. 		System.out.println("apple");
  18. 		if (interfaceFruit != null) {
  19. 			interfaceFruit.apple();
  20. 		}
  21. 	}
  22.  
  23. 	public void setFruit(Fruit f) {
  24. 		interfaceFruit = f;
  25. 	}
  26.  
  27. 	public static void main (String[] args) throws java.lang.Exception
  28. 	{
  29. 		Ideone test = new Ideone(){
  30. 			@Override
  31. 			public void apple() {
  32. 				System.out.println("local override of apple");
  33. 			}
  34. 		};
  35. 		System.out.println("1) ---");
  36. 		test.apple();
  37.  
  38.  
  39. 		Ideone test2 = new Ideone();
  40. 		System.out.println("2) ---");
  41. 		test2.apple();
  42.  
  43. 		test2.setFruit(new Fruit() {
  44. 			@Override
  45. 			public void apple() {
  46. 				System.out.println("interface override of apple");
  47. 			}
  48. 		});
  49. 		System.out.println("3) ---");
  50. 		test2.apple();
  51. 	}
  52. }
Success #stdin #stdout 0.12s 320576KB
comments (?)
stdin 
Standard input is empty
stdout 
1) ---
local override of apple
2) ---
apple
3) ---
apple
interface override of apple
https://ideone.com/41PNsn
language:
Java (HotSpot 12)
created:
10 years ago
visibility:
public

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