class PairTest {
    public static boolean inOrder(Comparable a, Object b) {
    	// "Comparable" ensures we have the compareTo method
    	return a.compareTo(b) < 0;
    }
    public static void main(String[] args) {
        Pair p1 = new Pair(3.0, 4.0);
        Pair p2 = new Pair(3.0, 5.0);

        System.out.println( p1.compareTo(p2) );
        // System.out.println( p1.compareTo("abcd") );
        
        System.out.println( inOrder(p1, p2) );
    }
}