George2: Created page with " class Chat { boolean flag = false; public synchronized void Question(String msg) { if (flag) { try { wait();..."

2015-07-12T13:12:45Z

Created page with "<source lang="java"> class Chat { boolean flag = false; public synchronized void Question(String msg) { if (flag) { try { wait();..."

New page

<source lang="java">

class Chat {
boolean flag = false;

public synchronized void Question(String msg) {
if (flag) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}
System.out.println(msg);
flag = true;
notify();
}

public synchronized void Answer(String msg) {
if (!flag) {
try {
wait();
} catch (InterruptedException e) {
e.printStackTrace();
}
}

System.out.println(msg);
flag = false;
notify();
}
}

class T1 implements Runnable {
Chat m;
String[] s1 = { "Hi", "How are you ?", "I am also doing fine!" };

public T1(Chat m1) {
this.m = m1;
new Thread(this, "Question").start();
}

public void run() {
for (int i = 0; i < s1.length; i++) {
m.Question(s1[i]);
}
}
}

class T2 implements Runnable {
Chat m;
String[] s2 = { "Hi", "I am good, what about you?", "Great!" };

public T2(Chat m2) {
this.m = m2;
new Thread(this, "Answer").start();
}

public void run() {
for (int i = 0; i < s2.length; i++) {
m.Answer(s2[i]);
}
}
}
public class TestThread {
public static void main(String[] args) {
Chat m = new Chat();
new T1(m);
new T2(m);
}
}
</source>
When above program is complied and executed, it produces following result:

Hi
Hi
How are you ?
I am good, what about you?
I am also doing fine!
Great!

Communicating between java threads - Revision history

George2: Created page with " class Chat { boolean flag = false; public synchronized void Question(String msg) { if (flag) { try { wait();..."