BarDemo.java Source code

Introduction

Here is the source code for BarDemo.java

Source

import java.util.concurrent.BrokenBarrierException;
import java.util.concurrent.CyclicBarrier;

class BarDemo {
    public static void main(String args[]) {
        CyclicBarrier cb = new CyclicBarrier(3, new BarAction());

        System.out.println("Starting");

        new MyThread(cb, "A");
        new MyThread(cb, "B");
        new MyThread(cb, "C");

    }
}

class MyThread implements Runnable {
    CyclicBarrier cbar;

    String name;

    MyThread(CyclicBarrier c, String n) {
        cbar = c;
        name = n;
        new Thread(this).start();
    }

    public void run() {

        System.out.println(name);

        try {
            cbar.await();
        } catch (BrokenBarrierException exc) {
            System.out.println(exc);
        } catch (InterruptedException exc) {
            System.out.println(exc);
        }
    }
}

class BarAction implements Runnable {
    public void run() {
        System.out.println("Barrier Reached!");
    }
}

public class MainClass {
    public static void main(String args[]) {
        CyclicBarrier cb = new CyclicBarrier(3, new BarAction());

        System.out.println("Starting");

        new MyThread(cb, "A");
        new MyThread(cb, "B");
        new MyThread(cb, "C");

        new MyThread(cb, "X");
        new MyThread(cb, "Y");
        new MyThread(cb, "Z");

    }
}