设计Java复杂计算机的代码

以下是一个简单的Java复杂计算器的代码，可以进行加、减、乘、除和求幂等基本运算：

import java.util.Scanner;

public class ComplexCalculator {

    public static void main(String[] args) {
        Scanner input = new Scanner(System.in);
        System.out.print("Enter the first complex number (a+bi): ");
        ComplexNumber c1 = new ComplexNumber(input.nextLine());
        System.out.print("Enter the second complex number (a+bi): ");
        ComplexNumber c2 = new ComplexNumber(input.nextLine());
        
        System.out.println(c1 + " + " + c2 + " = " + c1.add(c2));
        System.out.println(c1 + " - " + c2 + " = " + c1.subtract(c2));
        System.out.println(c1 + " * " + c2 + " = " + c1.multiply(c2));
        System.out.println(c1 + " / " + c2 + " = " + c1.divide(c2));
        System.out.println(c1 + " ^ 2 = " + c1.power(2));
    }
}

class ComplexNumber {
    private double real;
    private double imaginary;

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

    public ComplexNumber(String complexNumber) {
        String[] parts = complexNumber.split("\\+");
        this.real = Double.parseDouble(parts[0]);
        this.imaginary = Double.parseDouble(parts[1].replace("i", ""));
    }

    public double getReal() {
        return real;
    }

    public double getImaginary() {
        return imaginary;
    }

    public ComplexNumber add(ComplexNumber other) {
        return new ComplexNumber(this.real + other.real, this.imaginary + other.imaginary);
    }

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

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

    public ComplexNumber divide(ComplexNumber other) {
        double denominator = other.real * other.real + other.imaginary * other.imaginary;
        double real = (this.real * other.real + this.imaginary * other.imaginary) / denominator;
        double imaginary = (this.imaginary * other.real - this.real * other.imaginary) / denominator;
        return new ComplexNumber(real, imaginary);
    }

    public ComplexNumber power(int n) {
        double r = Math.pow(Math.sqrt(real * real + imaginary * imaginary), n);
        double theta = Math.atan2(imaginary, real);
        double real = r * Math.cos(n * theta);
        double imaginary = r * Math.sin(n * theta);
        return new ComplexNumber(real, imaginary);
    }

    @Override
    public String toString() {
        return real + "+" + imaginary + "i";
    }
}

该程序使用了一个ComplexNumber类来表示复数，其中包含了复数的实部和虚部，以及各种基本运算的方法，如加、减、乘、除和求幂等。

在主函数中，该程序首先通过输入流获得用户输入的两个复数，然后使用ComplexNumber类的各种方法来进行基本运算，并输出结果。

该程序是一个简单的复杂计算器，可以帮助我们更好地理解Java面向对象编程的思想，以及如何使用类来实现面向对象编程的基本概念。