Tips from learning: August 2014

Hi,
we need to print the odd elements using the odd thread and print the even elements using the even thread:

Here i am placing the java code and output. please post a comment if you see any mistake here.

package com.learning;

public class PrintODDandEvenNumbersUsingThreads {
 
 
 public volatile static  int counter = 0; 
 
 public static void main(String[] args){
  PrintODDandEvenNumbersUsingThreads obj = new PrintODDandEvenNumbersUsingThreads();
   Thread evenThread =  new EvenThreadClass(obj);
   Thread oddThread  =  new OddThreadClass(obj);
   evenThread.start();
   oddThread.start();
 }
 
  static class EvenThreadClass extends Thread{
  PrintODDandEvenNumbersUsingThreads obj = null;
  EvenThreadClass(PrintODDandEvenNumbersUsingThreads obj){
   this.obj=obj;   
  }
 
  public void run(){   
   while(!Thread.currentThread().isInterrupted()){
    synchronized(obj){
     try{
      if(counter%2==0){
       System.out.println("EvenThread-->"+counter);
       counter++;
       Thread.sleep(100);
       obj.notify();
      }else{
       obj.wait();
      }
     }catch(InterruptedException ie){
      ie.printStackTrace();
     }catch(Exception e){
      e.printStackTrace();
     }
   }   
  }
 } 
 }
   static class OddThreadClass extends Thread{
   PrintODDandEvenNumbersUsingThreads obj = null;
   OddThreadClass(PrintODDandEvenNumbersUsingThreads obj){
    this.obj=obj;
   }
  public void run(){   
   while(!Thread.currentThread().isInterrupted()){
    synchronized(obj){
     try{
      if(counter%2!=0){
       System.out.println("OddThread<-- span="">+counter);
       counter++;
       Thread.sleep(100);
       obj.notify();
      }else{
       obj.wait();
      }
     }catch(InterruptedException ie){
      ie.printStackTrace();
     }catch(Exception e){
      e.printStackTrace();
     }
   }
  }
 }
}

}

O/P:
EvenThread-->0
OddThread<--1 p="">EvenThread-->2
OddThread<--3 p="">EvenThread-->4
OddThread<--5 p="">EvenThread-->6
OddThread<--7 p="">EvenThread-->8
OddThread<--9 p="">EvenThread-->10
OddThread<--11 p="">

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