public class Message {
private String msg;
public Message(String str) {
this.msg = str;
}
public String getMsg() {
return msg;
}
public void setMsg(String str) {
this.msg = str;
}
}
public class Waiter implements Runnable {
private Message msg;
public Waiter(Message m) {
this.msg = m;
}
public void run() {
String name = Thread.currentThread().getName();
synchronized (msg) {
try {
System.out.println(name + " waiting to get notified at time:" + System.currentTimeMillis());
msg.wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
System.out.println(name + " got notified at time:" + System.currentTimeMillis());
System.out.println(name + " processed: " + msg.getMsg());
}
}
}
public class Notifier implements Runnable {
private Message msg;
public Notifier(Message msg) {
this.msg = msg;
}
public void run() {
String name = Thread.currentThread().getName();
System.out.println(name + " started");
try {
Thread.sleep(1000);
synchronized (msg) {
msg.setMsg(name + " work done");
//msg.notify();
msg.notifyAll();
}
} catch (InterruptedException e) {
e.printStackTrace();
}
}
}
public class TestMain {
public static void main(String[] args) {
Message msg = new Message("process it");
Waiter waiter1 = new Waiter(msg);
new Thread(waiter1, "Waiter-1").start();
Waiter waiter2 = new Waiter(msg);
new Thread(waiter2, "Waiter-2").start();
Notifier notifier = new Notifier(msg);
new Thread(notifier, "Notifier").start();
System.out.println("All the threads are started");
}
}
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