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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.     private int value;
  11.  
  12.     public synchronized int getValue() {
  13.         return this.value;
  14.     }
  15.  
  16.     public synchronized void setValue(int value) {
  17.         this.value = value;
  18.     }
  19.  
  20.     public static void main(String[] args) {
  21.  
  22.         Ideone nts = new Ideone();
  23.  
  24.         Thread th1 = new Thread(new Runnable() {
  25.             public void run() {
  26.                 nts.setValue(5);
  27.                 System.out.println("Thread Id " + Thread.currentThread().getId() + ", expected value is 5, value=" + nts.getValue());
  28.             }
  29.         });
  30.  
  31.         Thread th2 = new Thread(new Runnable() {
  32.             public void run() {
  33.                 nts.setValue(10);
  34.                 System.out.println("Thread Id " + Thread.currentThread().getId() + ", expected value is 10, value="
  35.                         + nts.getValue());
  36.             }
  37.         });
  38.  
  39.         Thread th3 = new Thread(new Runnable() {
  40.             public void run() {
  41.                 nts.setValue(15);
  42.                 System.out.println("Thread Id " + Thread.currentThread().getId() + ", expected value is 15, value="
  43.                         + nts.getValue());
  44.             }
  45.         });
  46.  
  47.         th1.start();
  48.         th2.start();
  49.         th3.start();
  50.     }
  51.  
  52. }
Success #stdin #stdout 0.04s 2315264KB
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Standard input is empty
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Thread Id 8, expected value is 5, value=5
Thread Id 9, expected value is 10, value=10
Thread Id 10, expected value is 15, value=15
https://ideone.com/VoFHii
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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