Android - Start Intent

Question

When searching for how to launch Intents some people have listed like below.

Can you launch an Intent with the following lines? How would you do it?

Display Settings

#Intent;component=com.android.settings/.DisplaySettings;end

Sound Settings

#Intent;component=com.android.settings/.SoundSettings;end

Wireless Settings

#Intent;component=com.android.settings/.WirelessSettings;end

Dialer

#Intent;component=com.android.contacts/.DialtactsActivity;end

Answer 1

For the first line, it will be

Intent i = new Intent();
i.setClassName("com.android.settings", "com.android.settings.DisplaySettings");
startActivity(i);

The rest of them will be similar to this.