title: Play a beep sound when touching a button
body: <p>I am new in android programming, 
  I want to play a beep sound when clicking on a button.</p>
  
  <p>I have onClickListener in my application which do something, I want to play a beep when button is clicked!</p>
  
  <p>How to play a beep sound when touching a button?</p>
  
  <pre><code>            layout.setOnClickListener(new OnClickListener() {
  
                      public void onClick(View arg0) {
                          if(C=="1") { C="2"; s2=s2+ex;}
                          else { C="1"; s1=s1+ex;}
  
                      }
                  });
  </code></pre>
  
  <p>how to do that with detailes like where to copy my beep.mp3 or beep.wav sound and codes and ...
  thanks.</p>