title: Button setonclicklistener error
body: <p>I am having a problem right now with <code>setOnClickListener</code>.</p>
  
  <p>When i put this following line:</p>
  
  <pre><code>button.setOnClickListener(this);
  </code></pre>
  
  <p>And run the application then it does not run and shows a message that "Application closed forcefully".</p>
  
  <p>Could you please help me how I can set button onclick event in Android 2.2?</p>