Answer Posted / madhusudhan

use of thread:1.concurrent execution of thread.
2.Program security.
Thread can be create in 2 ways
1.using Thread class
2.using Runnable interface
Example:
//first way of creating thread
class Thread1 extends Thread
{
public void run()
{
for(int i=0;i<1000;i++)
{
System.out.println(hashcode()+":"+i);
}
}
}
//second way of creating thread
class Thread2 implements Runnable
{
public void run()
{
for(int i=1000;i<2000;i++)
{
System.out.println(hashcode()+":"+i);
}
}
}
public class M
{
public static void main(String args[])
{
Thread1 t1=new Thread1();
t1.start();
Thread2 t2=new Thread2();
Thread t=new Thread(t2);
t.start();
}
}

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