java复数类总计

以下是一个简单的 Java 复数类：

public class Complex {

    private double real;
    private double imag;

    public Complex(double real, double imag) {
        this.real = real;
        this.imag = imag;
    }

    public double getReal() {
        return real;
    }

    public double getImag() {
        return imag;
    }

    public Complex add(Complex other) {
        double newReal = this.real + other.real;
        double newImag = this.imag + other.imag;
        return new Complex(newReal, newImag);
    }

    public Complex subtract(Complex other) {
        double newReal = this.real - other.real;
        double newImag = this.imag - other.imag;
        return new Complex(newReal, newImag);
    }

    public Complex multiply(Complex other) {
        double newReal = this.real * other.real - this.imag * other.imag;
        double newImag = this.real * other.imag + this.imag * other.real;
        return new Complex(newReal, newImag);
    }

    public Complex divide(Complex other) {
        double denominator = other.real * other.real + other.imag * other.imag;
        double newReal = (this.real * other.real + this.imag * other.imag) / denominator;
        double newImag = (this.imag * other.real - this.real * other.imag) / denominator;
        return new Complex(newReal, newImag);
    }

    public String toString() {
        return real + " + " + imag + "i";
    }
}

这个类包含了基本的复数运算：加、减、乘、除。可以通过创建新的 `Complex` 对象来表示结果。同时，这个类也包含了获取实部和虚部的方法，以及重写了 `toString()` 方法。