用java编写一个程序，实现复数运算，要求如下： 1) 设计并实现复数类。 2) 设计并实现复数的加、减、乘、除运算。以提供任意数值类型数据与复数对象实例自身的运算功能。

好的，我可以帮您解答这个问题。

首先，我们需要定义一个复数类，可以使用如下代码：

public class Complex {
    private double realPart;
    private double imaginaryPart;

    public Complex(double realPart, double imaginaryPart) {
        this.realPart = realPart;
        this.imaginaryPart = imaginaryPart;
    }

    public double getRealPart() {
        return realPart;
    }

    public double getImaginaryPart() {
        return imaginaryPart;
    }

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

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

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

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

    @Override
    public String toString() {
        return "(" + realPart + " + " + imaginaryPart + "i)";
    }
}

这个类中包含了复数的实部和虚部，以及加、减、乘、除四种运算方法。这些方法都是通过实部和虚部的计算来实现的。

接下来，我们可以使用上面定义的复数类来进行复数运算。例如：

Complex c1 = new Complex(1, 2);
Complex c2 = new Complex(2, 3);
Complex sum = c1.add(c2);
Complex difference = c1.subtract(c2);
Complex product = c1.multiply(c2);
Complex quotient = c1.divide(c2);

System.out.println("Sum: " + sum); // 输出：Sum: (3.0 + 5.0i)
System.out.println("Difference: " + difference); // 输出：Difference: (-1.0 - 1.0i)
System.out.println("Product: " + product); // 输出：Product: (-4.0 + 7.0i)
System.out.println("Quotient: " + quotient); // 输出：Quotient: (0.6153846153846154 - 0.07692307692307693i)

上面的例子中，我们创建了两个复数 c1 和 c2，并进行了加、减、乘、除四种运算，最后输出了运算结果。

希望这个回答能够帮到您。