Java Thread – 4

 

join suspend resum:

package com;
public class Test  ...{

    public static void main(String[] args) ...{
    FirstThread first = new FirstThread();
    SecondThread second = new SecondThread();
    first.start();
    second.start();
    
    try...{
        System.out.println("waiting for first...");
        first.join();
        System.out.println("It's a long wait");
        System.out.println("Waking up second ...");
        second.resume();
        System.out.println("Waiting for second to running");
        second.join();
    }catch(Exception e)...{
        
    }
    
    System.out.println("this is the ending.");
    }
}

class FirstThread extends Thread...{
    public void run() ...{    
    try ...{
        System.out.println("First Thread running:");
        Thread.sleep(2000);
        System.out.println("First Thread stop running:");
    } catch (InterruptedException e) ...{
        e.printStackTrace();
    }
    }
}

class SecondThread extends Thread...{
    public void run() ...{    
    try ...{
        System.out.println("Second Thread running:");
        System.out.println("Second Thread suspend itself:");
        suspend();
        System.out.println("Second Thread  runs againg and finish:");
    } catch (Exception e) ...{
        e.printStackTrace();
    }
    }
    

   
}

waiting for first...
First Thread running:
Second Thread running:
Second Thread suspend itself:
First Thread stop running:
It's a long wait
Waking up second ...
Second Thread  runs againg and finish:
Waiting for second to running
this is the ending.