public class Compare {
    public static void main(String[] args) {
	
	Comparable c1 = randomComplex(1,3);
	Comparable c2 = randomComplex(1,3);	
	System.out.println("C1: "   + c1);
	System.out.println("C2: "   + c2);

	switch(c1.compareTo(c2)) {
	case -1: System.out.println("less!"); break;
	case  0: System.out.println("same!"); break;
	case  1: System.out.println("more!"); break;
	case 9999: System.out.println("buh?"); break;
	default:  System.out.println("uh oh!");
	}
    }

    private static Complex randomComplex(int x, int y) {
	return new Complex(myRandom(x,y),myRandom(x,y));
    }
    
    private static int myRandom(int min, int max) {
	return (int) (Math.random()*(max-min+1)) + min; 
    }
}

class Complex implements Comparable {
    
    private int real;
    private int complex;
    
    public Complex(int real, int complex) {
	this.real = real;
	this.complex = complex;
    }
    
    public String toString() {
	String op="+";
	if(complex<0) op="";
	return real+op+complex+"i";
    }
    
    public boolean equals(Complex c) {
	return complex==c.complex && real==c.real &&
	    mag(this)==mag(c);
    }
    
    public int compareTo(Object c) {
	int result=9999;
	if (mag(this) < mag((Complex)c)) result=-1;
	else if (this.equals((Complex)c)) result=0;
	else if (mag(this) > mag((Complex)c)) result=1;
	return result;
    }
    
    private double mag(Complex c) {
	double asqu = c.real*c.real;      
	double bsqu = c.complex*c.complex;
	return Math.sqrt(asqu+bsqu);
    }
}