StartTogetherTask.java Source code

Introduction

Here is the source code for StartTogetherTask.java

Source

import java.util.Random;
import java.util.concurrent.Phaser;

class StartTogetherTask extends Thread {
    private Phaser phaser;
    private String taskName;
    private static Random rand = new Random();

    public StartTogetherTask(String taskName, Phaser phaser) {
        this.taskName = taskName;
        this.phaser = phaser;
    }

    @Override
    public void run() {
        System.out.println(taskName + ":Initializing...");
        int sleepTime = rand.nextInt(5) + 1;
        try {
            Thread.sleep(sleepTime * 1000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        System.out.println(taskName + ":Initialized...");
        phaser.arriveAndAwaitAdvance();
        System.out.println(taskName + ":Started...");
    }
}

public class Main {
    public static void main(String[] args) {
        Phaser phaser = new Phaser(1);
        for (int i = 1; i <= 3; i++) {
            phaser.register();
            String taskName = "Task  #" + i;
            StartTogetherTask task = new StartTogetherTask(taskName, phaser);
            task.start();
        }
        phaser.arriveAndDeregister();
    }
}