Android Tutorial:Adding buttons in the action bar part 2

android_action_bar.java

@Override
  public boolean onCreateOptionsMenu(Menu menu) {
		// TODO Auto-generated method stub
		MenuInflater inflater = getMenuInflater();
	    inflater.inflate(R.menu.menu, menu);
	    return true;
	}

	@Override
	public boolean onOptionsItemSelected(MenuItem item) {
		// TODO Auto-generated method stub
		switch (item.getItemId()) {
		case R.id.itemAdd:
			//do something when this button is pressed
			return true;
		case R.id.itemRefresh:
			//do something when this button is pressed
			return true;
		case R.id.itemHelp:
			//do something when this button is pressed
			return true;
		default: 
			return true;
		}	
	}