An example of a Singleton made for Android

MainActivity.java

public class MainActivity extends ActionBarActivity {

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

        String limitedResource = Utils.getInstance(getApplicationContext()).limitedResource;

        Log.d("stuf", limitedResource);
    }


}

Utils.java

public class Utils {


    private static Utils mInstance = null;
    private Context mContext;

    public String limitedResource = "hello world";

    private Utils(Context context) {
        mContext = context;
    }

    public static Utils getInstance(Context context) {
        if (mInstance == null) {
            Log.d("tag", "############## INITING UTILS ############ ");
            mInstance = new Utils(context);
        }

        return mInstance;
    }