Getting the priority and Monitoring and Getting Thread in java

Getting the priority

public class SimplePriorities extends Thread 

 {

   private int countDown = 5;

   private volatile double d = 0; 

   public SimplePriorities(int priority) 

   {

      setPriority(priority);

      start();

   }

   public String toString() 

   {

      return super.toString() + ": " + countDown;

   }

   public void run() 

   {

      while(true) 

        {

         for(int i = 1; i < 100000; i++)

         d = d + (Math.PI + Math.E) / (double)i;

         System.out.println(this);

         if(--countDown == 0) return;

      }

   }

   public static void main(String[] args) 

    {

      new SimplePriorities(Thread.max_priority);

      for(int i = 0; i < 5; i++)

      new SimplePriorities(Thread.min_priority);

   }

} 

Monitoring a Thread

class MyThread extends Thread

 {

   boolean waiting= true;

   boolean ready= false;

   MyThread(){}

   public void run() 

   {

      String thrdName = Thread.currentThread().getName();

      System.out.println(thrdName + " starting.");

      while(waiting) 

      System.out.println("waiting:"+waiting); 

      System.out.println("waiting...");

      startWait(); 

      try 

      {

         Thread.sleep(1000);

      }

      catch(Exception exc) 

      {

         System.out.println(thrdName + " interrupted.");

      }

      System.out.println(thrdName + " terminating.");

   }

   synchronized void startWait() 

    {

      try 

      {

         while(!ready) wait();

      }

      catch(InterruptedException exc) 

      {

         System.out.println("wait() interrupted");

      }

   }

   synchronized void notice()

   {

      ready = true;

      notify();

   }

}

public class Main 

 {

   public static void main(String args[])throws Exception

     {

      MyThread thrd = new MyThread();

      thrd.setName("MyThread #1");

      showThreadStatus(thrd);

      thrd.start();

      Thread.sleep(50);

      showThreadStatus(thrd);

      thrd.waiting = false;

      Thread.sleep(50); 

      showThreadStatus(thrd);

      thrd.notice();

      Thread.sleep(50);

      showThreadStatus(thrd);

      while(thrd.isAlive()) 

      System.out.println("alive");

      showThreadStatus(thrd);

   }

   static void showThreadStatus(Thread thrd) 

   {

      System.out.println(thrd.getName()+" 

      Alive:="+thrd.isAlive()+" 

      State:=" + thrd.getState() );

   }

}

Getting Thread Name

public class TwoThreadGetName extends Thread 

 {

   public void run() 

    {

      for (int i = 0; i < 10; i++) 

      {

         printMsg();

      }

   }

   public void printMsg() 

    {

      Thread t = Thread.currentThread();

      String name = t.getName();

      System.out.println("name=" + name);

   } 

   public static void main(String[] args) 

    {

      TwoThreadGetName tt = new TwoThreadGetName();

      tt.start();

      for (int i = 0; i < 10; i++) 

        {

         tt.printMsg();

      }

   }

}