| class ta extends Thread{
 public void run(){
 for(int i=1;i<=10;i++) {
 try	{
 System.out.print(i);
 Thread.sleep(10); // milisecond
 }catch (InterruptedException e)	{	}
 }
 }
 }
 class tb extends Thread{
 public void run(){
 for(int i=1;i<=10;i++) {
 try	{
 System.out.println(i);
 Thread.sleep(20); // milisecond
 }catch (InterruptedException e)	{	}
 }
 }
 }
 class tc extends Thread{
 public static void main(String a[]){
 ta xta = new ta();
 xta.start();
 tb xtb = new tb();
 xtb.start();
 }
 }
 
 
 |