没有函数指针,什么是在Java中实现Callback的推荐方法

interface Callback {
    void onSuccess();
    void onFailure();
}

class MyClass {
    private Callback callback;

    public MyClass(Callback callback) {
        this.callback = callback;
    }

    public void doSomething() {
        // 在这里执行一些操作
        if (操作成功) {
            callback.onSuccess();
        } else {
            callback.onFailure();
        }
    }
}

class MyCallback implements Callback {
    public void onSuccess() {
        System.out.println("操作成功");
    }

    public void onFailure() {
        System.out.println("操作失败");
    }
}

public class Main {
    public static void main(String[] args) {
        Callback callback = new MyCallback();
        MyClass myClass = new MyClass(callback);
        myClass.doSomething();
    }
}