Method flip

java/Chapter 17/Question17_4/Question.java:5–7

(int bit)

public class Question {
	/* Flips a 1 to a 0 and a 0 to a 1 */
	public static int flip(int bit) {
		return 1 ^ bit;
	}	
	
	/* Returns 1 if a is positive, and 0 if a is negative */
	public static int sign(int a) {