如何将实现接口的类的成员传递给使用接口的另一个类？

// 定义接口
interface MyInterface {
    void doSomething();
}

// 实现接口的类
class MyClass implements MyInterface {
    private String data;

    public MyClass(String data) {
        this.data = data;
    }

    public void doSomething() {
        System.out.println("Doing something with data: " + data);
    }
}

// 使用接口的类
class AnotherClass {
    private MyInterface myInterface;

    public AnotherClass(MyInterface myInterface) {
        this.myInterface = myInterface;
    }

    public void doSomethingElse() {
        myInterface.doSomething();
    }
}

// 测试代码
public class Main {
    public static void main(String[] args) {
        MyClass myClass = new MyClass("Hello, world!");
        AnotherClass anotherClass = new AnotherClass(myClass);
        anotherClass.doSomethingElse();
    }
}