On studying Android
<p>What is the best way to learn Android? I'm reading Rogers's at al.'s book Android Application Development. However, as I tried the following code, nothing outputs except a mobile phone:</p>

<pre><code>package org.qwerty.com;

import android.app.Activity;
import android.os.Bundle;
import android.widget.TextView;

public class HelloWorld extends Activity {
    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
        TextView tv = new TextView(this);
        tv.setText("Hello, Android");
        setContentView(tv);
    }
}
</code></pre>

<p>I tried also search for the Dalvik Debug Monitor <a href="http://stackoverflow.com/questions/1108820/android-emulator-output">http://stackoverflow.com/questions/1108820/android-emulator-output</a> but I couldn't find the option where I can open my hello android project.</p>
