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  1. import java.util.*;
  2. import java.lang.*;
  3.  
  4. public class Task implements Runnable {
  5.     Private void do_stuff() {
  6.         try {
  7.             Thread.sleep(5000);
  8.         } catch(InterruptedException e) {}
  9.     }
  10.     public void run() {
  11.         do_stuff();
  12.     }
  13.  
  14.     static public void main(String[] args) {
  15.         Thread[] task_array = {new Thread(new Task()),
  16.                                new Thread(new Task()),
  17.                                new Thread(new Task()),
  18.                                new Thread(new Task())};
  19.         task_array[0].start();
  20.         task_array[1].start();
  21.         task_array[2].run();
  22.         task_array[3].run();
  23.         System.out.println("Done");
  24.     }
  25. }
  26.  
Compilation error #stdin compilation error #stdout 0s 0KB
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stdin
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Standard input is empty
compilation info 
Main.java:5: error: <identifier> expected
    Private void do_stuff() {
           ^
Main.java:5: error: invalid method declaration; return type required
    Private void do_stuff() {
                 ^
2 errors
stdout
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Standard output is empty
https://ideone.com/MjyGfR
language:
Java (HotSpot 12)
created:
8 years ago
visibility:
public

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