JAVA定义一个复数类 Complex

在Java中，你可以通过创建一个名为Complex的类来定义一个复数类。复数通常由实部和虚部分组成，我们可以使用两个私有成员变量分别表示这两个部分。以下是一个简单的复数类的示例：

public class Complex {
    private double real; // 实部
    private double imaginary; // 虚部

    // 构造函数，初始化复数
    public Complex(double real, double imaginary) {
        this.real = real;
        this.imaginary = imaginary;
    }

    // 获取和设置属性的方法
    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;
    }

    // 加法、减法、乘法和除法等基本操作的方法
    public Complex add(Complex other) {
        return new Complex(this.real + other.real, this.imaginary + other.imaginary);
    }

    public Complex subtract(Complex other) {
        return new Complex(this.real - other.real, this.imaginary - other.imaginary);
    }

    public Complex multiply(Complex other) {
        double realPart = this.real * other.real - this.imaginary * other.imaginary;
        double imaginaryPart = this.real * other.imaginary + this.imaginary * other.real;
        return new Complex(realPart, imaginaryPart);
    }

    public Complex divide(Complex other) {
        if (other.real != 0 && other.imaginary == 0) {
            throw new ArithmeticException("Cannot divide by zero");
        }
        double denominator = other.real * other.real + other.imaginary * other.imaginary;
        double realPart = (this.real * other.real + this.imaginary * other.imaginary) / denominator;
        double imaginaryPart = (this.imaginary * other.real - this.real * other.imaginary) / denominator;
        return new Complex(realPart, imaginaryPart);
    }

    // 重写toString()方法，方便打印复数
    @Override
    public String toString() {
        return "(" + real + " + " + imaginary + "i)";
    }
}