How do I display an alert dialog on Android?

Question

I want to display a dialog/popup window with a message to the user that shows \"Are you sure you want to delete this entry?\" with one button that says \'Delete\'. When

Answer 1

for me

new AlertDialog.Builder(this)
    .setTitle("Closing application")
    .setMessage("Are you sure you want to exit?")
    .setPositiveButton("Yes", new DialogInterface.OnClickListener() {
          @Override
          public void onClick(DialogInterface dialog, int which) {

          }
     }).setNegativeButton("No", null).show();