可以使用泛型来扩展带有泛型的类吗？

// 定义一个基础泛型类
public class BaseClass<T> {
    private T value;

    public BaseClass(T value) {
        this.value = value;
    }

    public T getValue() {
        return value;
    }

    public void setValue(T value) {
        this.value = value;
    }
}

// 扩展带有泛型的类
public class ExtendedClass<T, U> extends BaseClass<T> {
    private U additionalValue;

    public ExtendedClass(T value, U additionalValue) {
        super(value);
        this.additionalValue = additionalValue;
    }

    public U getAdditionalValue() {
        return additionalValue;
    }

    public void setAdditionalValue(U additionalValue) {
        this.additionalValue = additionalValue;
    }
}

// 使用示例
public class Main {
    public static void main(String[] args) {
        ExtendedClass<String, Integer> extended = new ExtendedClass<>("Hello", 123);
        System.out.println(extended.getValue()); // 输出: Hello
        System.out.println(extended.getAdditionalValue()); // 输出: 123
    }
}