ComplexNumber.java

public class ComplexNumber {
    private double real;
    private double imaginary;

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


    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;
    }


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

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

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


}