PA08 - 2

public class Complex {
    double r;
    double i;

    public Complex() {
        r = 0;
        i = 0;
    }

    public Complex(double r, double i) {
        this.r = r;
        this.i = i;
    }


    public double getR() {
        return r;
    }

    public double getI() {
        return i;
    }

    public void add(Complex cvalue) {
        r += cvalue.r;
        i += cvalue.i;
    }

    public static Complex add(Complex cvalue1, Complex cvalue2) {
        return new Complex(cvalue1.r + cvalue2.r, cvalue1.i + cvalue2.i);
    }

    public void sub(Complex cvalue) {
        r -= cvalue.r;
        i -= cvalue.i;
    }

    public static Complex sub(Complex cvalue1, Complex cvalue2) {
        return new Complex(cvalue1.r - cvalue2.r, cvalue1.i - cvalue2.i);
    }

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

    public static void main(String[] args) {
        Complex x = new Complex(5, 3);
        Complex y = new Complex(2, 8);

        System.out.println(x.getR());
        System.out.println(x.getI());

        System.out.println(x);

        x.add(y);

        System.out.println(x);

        System.out.println(add(x, y));

    }

}