title: When i send a message on my app it only says hello world instead of the text im typing
body: <pre><code>@Override
  protected void onCreate(Bundle savedInstanceState) {
      super.onCreate(savedInstanceState);    
        // Get the message from the intent    
      Intent intent = getIntent();
      String message = intent.getStringExtra(MainActivity.EXTRA_MESSAGE);
  
      // Create the text view
      TextView textView = new TextView(this);
      textView.setTextSize(40);
      textView.setText(message);
  
      // Set the text view as the activity layout
      setContentView(textView);
  
      setContentView(R.layout.activity_display_message);
      // Show the Up button in the action bar.
      setupActionBar();
  }
  </code></pre>