Wont leave wait

Question

here's the question:
Create two Thread subclasses, one with a run( ) that starts up and then calls wait( ). The other class's run( ) should capture the reference of the first Thread object. Its run( ) should call notifyAll( ) for the first thread after some number of seconds have passed so that first thread can print a message.
here's my code..
import java.io.IOException;
import java.lang.*;
public class EmsExercise8 {
     public static void main(String[] args) throws Exception {
          new WaitThread("Initializing...").start();
class WaitThread extends Thread{
     WaitThread(String s){
          super(s);
     public void run(){
          System.out.println(getName());
          System.out.println(" ");
          int counter = 3;
          while(counter==3){
               synchronized(this){
              try{
                   wait();
                   new NotifyThread("Start").start();
              }catch(InterruptedException  ex){
               System.out.println("Notified");
               counter++;
class NotifyThread extends Thread{
     public NotifyThread(String a) {
          super(a);
     public void run(){
          System.out.println("Please Notify");
          notifyAll();
my problem is that it doesn't seem to finishing the waiting process and even if it is able to get to the NotifyThread it doesn't come back to the Wait thread.. Help!! pls..!
Message was edited by:
Arch_Bytes

Answer 1

ive switched it and added a snyc block.. this time it skips the wait..
im starting to hate threads.. argh!^_^
thanks in advance!
public class EmsExercise8 {
     public static void main(String[] args) throws Exception {
          WaitThread one = new WaitThread();
          //NotifyThread two = new NotifyThread();
          new NotifyThread(one).start();
class WaitThread extends Thread{
          public void run(){
          System.out.println(getName());
          System.out.println(" ");
          int counter = 3;
          while(counter==3){
               synchronized(this){
              try{
                   wait();
              }catch(InterruptedException  ex){
               System.out.println("Notified");
               counter++;
class NotifyThread extends WaitThread{
     public NotifyThread(WaitThread t) {
     public void run(){
          synchronized(this){
               System.out.println("Please Notify");
               notifyAll();
}