public static void main(String args[]) {
// use the first constructor
Complex x = new Complex();
x.real = 1.0;
x.imag = 2.0;
// use the second constructor
Complex y = new Complex(3.0, 4.0);
System.out.println(abs(y));
conjugate(x);
printComplex(x);
printComplex(y);
Complex s = add(x, y);
printComplex(s);
}
// conjugate is a modifier
public static void conjugate(Complex c) {
c.imag = -c.imag;
}