java

 final CharSequence[] items = {"Red", "Green", "Blue"};
        AlertDialog.Builder builder = new AlertDialog.Builder(this);
        builder.setTitle("Pick a color");
        
        builder.setSingleChoiceItems(items, -1, 
        								new DialogInterface.OnClickListener() {
		        public void onClick(DialogInterface dialog, int item) {
		        Toast.makeText(getApplicationContext(), items[item],
		        Toast.LENGTH_SHORT).show();
        	}
        });
        AlertDialog alert = builder.create();	
        }