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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.  
  8.  
  9.  
  10.  
  11. interface IListenner {
  12.     void onSuccess(Bar bar);
  13. }
  14.  
  15. class Bar {
  16.  
  17. }
  18.  
  19. class Provider {
  20.     public void doUpdate(IListenner l) {
  21.         l.onSuccess(new Bar());
  22.     }
  23. }
  24.  
  25. class Outter {
  26.     private Bar bar;
  27.  
  28.     private Provider provider = new Provider();
  29.  
  30. //    [...]
  31.  
  32.     public void update() {
  33.         provider.doUpdate(new IListenner() {
  34.             @Override
  35.             public void onSuccess(Bar bar) {
  36.                 Outter.this.bar = bar;
  37.                 // Here, Outter.this.bar.equals(bar) is false.
  38.  
  39.                 System.out.println(Outter.this.bar.equals(bar));
  40.             }
  41.         });
  42.     }
  43.  
  44. //    [...]
  45.  
  46. }
  47. public class Main {
  48.     public static void main(String[] args) {
  49.         new Outter().update();
  50.     }
  51. }
  52.  
  53.  
Success #stdin #stdout 0.11s 320320KB
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https://ideone.com/B4CoQs
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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