public class ScoreboardTimer extends Thread
{
   // declare you instance variables. You will need a counter for the seconds remaining, a boolean value to toggle
   // the clock on and off and a text field reference so the GUI frame can pass you a reference to the object
   // displaying the clock on the scoreboard. You will use this reference to update the timer display.

   // constructor
   public ScoreboardTimer(int initialTime, JTextField timerdisplay)
   {
    //  private int minute;
     // private int second;
     int initialTime 10;
     }

   public boolean toggle()
   {
      // turn the clock control variable on if it is off and off if it is on
   }

   // create a getter and a setter for the counter variable

   // override the run() method from Thread class
   public void run()
   {
      while (true) // let the clock thread run for as long as the scoreboard application is running
      {
         timerdisplay -= initialTime ;
         try
         {   timerdisplay.sleep(1000)
	 }
	 catch (InterruptedException e)
	{
	}

         if (running) // if your clock control variable is true
         {
            initialTime --;
           // displayJTextField.setText(timeFormat//counter and update the timer display; change the seconds to a string in MM:SS format
         }
      }
   }
}