new Runnable() but no new thread?

Question

I\'m trying to understand the code here , specifically the anonymous class

private Runnable mUpdateTimeTask = new Runnable() {
public void run() {
   final l         


        

Answer 1

The Runnable interface is another way in which you can implement multi-threading other than extending the Thread class due to the fact that Java allows you to extend only one class.

You can however, use the new Thread(Runnable runnable) constructor, something like this:

private Thread thread = new Thread(new Runnable() {
public void run() {
   final long start = mStartTime;
   long millis = SystemClock.uptimeMillis() - start;
   int seconds = (int) (millis / 1000);
   int minutes = seconds / 60;
   seconds     = seconds % 60;

   if (seconds < 10) {
       mTimeLabel.setText("" + minutes + ":0" + seconds);
   } else {
       mTimeLabel.setText("" + minutes + ":" + seconds);            
   }

   mHandler.postAtTime(this,
           start + (((minutes * 60) + seconds + 1) * 1000));
   }
});

thread.start();