android中的第二个活动可以访问公共静态变量吗？

public class MainActivity extends AppCompatActivity {
    public static String sharedData = "Hello, World!";
    // ...
}

public class SecondActivity extends AppCompatActivity {
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_second);

        String data = MainActivity.sharedData;
        // ...
    }
}