( Android ) คำสั่ง @SuppressWarnings ใช้ยังไงครับ???

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button button = (Button) findViewById(R.id.button);
        button.setBackgroundDrawable(getResources().getDrawable(R.drawable.ic_launcher));
    }

    @Override
    @SuppressWarnings(value = {"deprecation"})
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        Button button = (Button) findViewById(R.id.button);
       button.setBackgroundDrawable(getResources().getDrawable(R.drawable.ic_launcher));
    }