Thread Realted

Question

I am running Class ThreadTestB. I am not able to get the region why
ThreadTestB b1 = new ThreadTestB("b1.......");
ThreadTestB b2 = new ThreadTestB("b2 ****");
Is also executing.
If “b1” will execute Infinite time then lock will not released . so “b2” execution is not possible. But when u run
Class ThreadTest B. B2 execution is also done . Why it is passible ?.
public class ThreadTestB extends Thread {
ThreadTestB(){}
ThreadTestB(String str){
super(str);
//FileOutputStream fout= new FileOut
ThreadTestA a = new ThreadTestA();
public void run()
a.Am1();
a.Am2();
public static void main(String[] args) {
ThreadTestB b1 = new ThreadTestB("b1.......");
ThreadTestB b2 = new ThreadTestB("b2 ****");
b1.start();
b2.start();
public class ThreadTestA {
//FileOutputStream fout= new FileOut
public synchronized void Am1(){
System.out.println(" Am1 start to execute .."+Thread.currentThread().getName());
while(true){
System.out.println(" Am1 ...........00000 current thread "+Thread.currentThread().getName());
// try{Thread.sleep(1000);
// }catch(Exception exp){}
public synchronized void Am2(){
while(true){
System.out.println(" Am2 ***********1111current thread "+Thread.currentThread().getName());
// try{Thread.sleep(1000);
// }catch(Exception exp){}
public static void main(String[] args) {

Answer 1

Thank ,
but pls explain by Example. I'm sure the tutorial has examples.
Here are a couple more examples.
http://www.javaalmanac.com/cgi-bin/search/find.pl?words=thread
You might also want to check out Doug Lea's Concurrent Programming in Java
Here's yawmark's list of goodies. I'm sure you'll find examples there too:
Java's Thread Tutorial
JavaWorld: Introduction to Java threads
IBM: Introduction to Java threads
Google: java+threads+tutorial
Why Are Thread.stop, Thread.suspend, Thread.resume and Runtime.runFinalizersOnExit Deprecated?
Go through some of this stuff, and if you have a question more specific than "How do I use threads to handle multiple requests?" then post again.
Oh, also, if you need an intro to the socket side of it:
http://java.sun.com/docs/books/tutorial/networking/sockets/index.html
The Java™ Tutorial - Lesson: All About Sockets
Sockets programming in Java: A tutorial