如何在Java中使用泛型语言运算符和扩展Number的泛型类

public class GenericNumber<T extends Number> extends Number {
    private T value;

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

    // 实现Number接口中的方法
    @Override
    public int intValue() {
        return value.intValue();
    }

    @Override
    public long longValue() {
        return value.longValue();
    }

    @Override
    public float floatValue() {
        return value.floatValue();
    }

    @Override
    public double doubleValue() {
        return value.doubleValue();
    }

    // 自定义方法
    public T getValue() {
        return value;
    }

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

GenericNumber<Integer> integerNumber = new GenericNumber<>(5);
GenericNumber<Double> doubleNumber = new GenericNumber<>(3.14);
GenericNumber<Float> floatNumber = new GenericNumber<>(2.71f);

public class ComplexNumber extends GenericNumber<Double> {
    private double imaginary;

    public ComplexNumber(double real, double imaginary) {
        super(real);
        this.imaginary = imaginary;
    }

    public double getImaginary() {
        return imaginary;
    }

    public void setImaginary(double imaginary) {
        this.imaginary = imaginary;
    }

    // 自定义方法
    public double getMagnitude() {
        return Math.sqrt(getReal() * getReal() + imaginary * imaginary);
    }
}