title: How to stop the CountDownTimer?
body: <p>where should I edit this code, that i can stop the CountDown ?</p>
  
  <p>How to delete the old one before I start the next new CountDown ?</p>
  
  <p><div class="snippet" data-lang="js" data-hide="false" data-console="true" data-babel="false">
  <div class="snippet-code">
  <pre class="snippet-code-js lang-js prettyprint-override"><code>public void MyCounter1(){
          new CountDownTimer(60000, 1000) {
              public void onTick(long millisUntilFinished) {
                   txt_timer.setText("Left time : " + millisUntilFinished / 1000);                         
              }
              public void onFinish() {
                  txt_timer.setText("done");
              }
          }.start();
  
      }</code></pre>
  </div>
  </div>
  </p>