How do I programmatically launch a specific application?

Question

I want to launch a specif application.

I know how to do Intents but I want to avoid the selection menu if there are multiple apps that can handle the intent, I want

Answer 1

I use:

  try {
       Intent intent = new Intent();    
       intent.setClassName("package.name", "");
       startActivity(intent);
    } catch (NameNotFoundException e) {
       Log.e(TAG, e.getMessage());
    }

But like Cami suggested this will work too:

try {
    Intent i = ctx.getPackageManager().getLaunchIntentForPackage("com.twidroid.SendTweet");
    ctx.startActivity(i);
} catch (NameNotFoundException e) {
     Log.e(TAG, e.getMessage());
}