MainActivity.java

package com.jenxsol.activity.demo;

import android.app.Activity;
import android.os.Bundle;
import android.view.Menu;

public class MainActivity extends Activity
{

    @Override
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        // 1. Get your Views

        // 2. make 'this' implement View.OnClick, then set Button
        // onClickListener to 'this'

    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        getMenuInflater().inflate(R.menu.activity_main, menu);
        return true;
    }

    // 3. Implement onClick method

}