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Create three threads and run these threads according to set priority.


Code:
class t1 extends Thread
{
  public void run()
  {
   System.out.println("This is Thread1 class");
  }
}
class t2 extends Thread
{
   public void run()
   {
     System.out.println("This is Thread2 class");
   }
}
class t3 extends Thread
{
   public void run()
  {
    System.out.println("This is Thread3 class");
  }
}
public class Threads
{
   public static void main(String args[])
   {
     t1 t=new t1();
     t2 tt=new t2();
     t3 ttt=new t3();
     t.setPriority(Thread.MIN_PRIORITY);
     tt.setPriority(Thread.MAX_PRIORITY);
     ttt.setPriority(Thread.NORM_PRIORITY);
     t.start();
     tt.start();
     ttt.start();
   }
}

Output:

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