Main.java Source code

Introduction

Here is the source code for Main.java

Source

import java.util.LinkedList;
import java.util.concurrent.Semaphore;

public class Main {
    public static void main(String[] args) {
        new Producer().start();
        new Consumer("A").start();
        new Consumer("B").start();
    }
}

class Data {
    public static Object LOCK = new Object();

    public static LinkedList list = new LinkedList();
    public static Semaphore sem = new Semaphore(0);
    public static Semaphore mutex = new Semaphore(1);
}

class Consumer extends Thread {
    String name;

    public Consumer(String name) {
        this.name = name;
    }

    public void run() {
        try {

            while (true) {
                Data.sem.acquire(1);
                Data.mutex.acquire();
                System.out.println("Consumer \"" + name + "\" read: " + Data.list.removeFirst());
                Data.mutex.release();
            }
        } catch (Exception x) {
            x.printStackTrace();
        }
    }
}

class Producer extends Thread {
    public void run() {
        try {
            int N = 0;

            while (true) {
                Data.mutex.acquire();
                Data.list.add(new Integer(N++));
                Data.mutex.release();
                Data.sem.release(1);
                Thread.sleep(500);
            }
        } catch (Exception x) {
            x.printStackTrace();
        }
    }
}