用java的类与对象编写复数的加减乘除

在Java中，我们可以创建一个表示复数的类`ComplexNumber`，包含两个属性：实部(`real`)和虚部(`imaginary`)，然后提供加、减、乘、除的方法来操作复数。下面是一个简单的示例：

public class ComplexNumber {
    private double real;
    private double imaginary;

    // 构造函数
    public ComplexNumber(double real, double imaginary) {
        this.real = real;
        this.imaginary = imaginary;
    }

    // Getters and Setters
    public double getReal() {
        return real;
    }

    public void setReal(double real) {
        this.real = real;
    }

    public double getImaginary() {
        return imaginary;
    }

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

    // 复数加法
    public ComplexNumber add(ComplexNumber other) {
        double newReal = this.real + other.getReal();
        double newImaginary = this.imaginary + other.getImaginary();
        return new ComplexNumber(newReal, newImaginary);
    }

    // 复数减法
    public ComplexNumber subtract(ComplexNumber other) {
        double newReal = this.real - other.getReal();
        double newImaginary = this.imaginary - other.getImaginary();
        return new ComplexNumber(newReal, newImaginary);
    }

    // 复数乘法
    public ComplexNumber multiply(ComplexNumber other) {
        double realProduct = this.real * other.getReal() - this.imaginary * other.getImaginary();
        double imagProduct = this.real * other.getImaginary() + this.imaginary * other.getReal();
        return new ComplexNumber(realProduct, imagProduct);
    }

    // 复数除法 (假设除数不为0)
    public ComplexNumber divide(ComplexNumber divisor) {
        double denominator = divisor.getReal() * divisor.getReal() + divisor.getImaginary() * divisor.getImaginary();
        double newReal = (this.real * divisor.getReal() + this.imaginary * divisor.getImaginary()) / denominator;
        double newImaginary = (this.imaginary * divisor.getReal() - this.real * divisor.getImaginary()) / denominator;
        return new ComplexNumber(newReal, newImaginary);
    }
}