AlertDialog.Builder alertDialogBuilder = new AlertDialog.Builder(this);
    alertDialogBuilder.setMessage("Are you sure, You wanted to make decision");
    alertDialogBuilder.setPositiveButton("yes", new DialogInterface.OnClickListener() {
        @Override
        public void onClick(DialogInterface arg0, int arg1) {
            Toast.makeText(MainActivity.this,"You clicked yes button",Toast.LENGTH_LONG).show();
        }
    });

    alertDialogBuilder.setNegativeButton("No",new DialogInterface.OnClickListener() {
        Override
        public void onClick(DialogInterface dialog, int which) {
            finish();
        }
    });

    AlertDialog alertDialog = alertDialogBuilder.create();
    alertDialog.show();