Join.md

layout	title	parent	nav_order
default	join() method	Multithreading	6

The join() method

The join() method waits for a thread to die. In other words, it causes the currently running threads to stop executing until the thread it joins with completes its task.

Syntax

public void join()throws InterruptedException public void join(long milliseconds)throws InterruptedException

    class TestJoinMethod1 extends Thread{  
     public void run(){  
      for(int i=1;i<=5;i++){  
       try{  
        Thread.sleep(500);  
       }catch(Exception e){System.out.println(e);}  
      System.out.println(i);  
      }  
     }  
    public static void main(String args[]){  
     TestJoinMethod1 t1=new TestJoinMethod1();  
     TestJoinMethod1 t2=new TestJoinMethod1();  
     TestJoinMethod1 t3=new TestJoinMethod1();  
     t1.start();  
     try{  
      t1.join();  
     }catch(Exception e){System.out.println(e);}  
      
     t2.start();  
     t3.start();  
     }  
    }  

Output

       1
       2
       3
       4
       5
       1
       1
       2
       2
       3
       3
       4
       4
       5
       5

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