Daniel Lawson Chapter 8 Exercises 2-6

Daniel Lawson
9/22/2016

Exercise 2:
public void flip(){
    int tempX = x;
    x = -y;
    y = -tempX;
}
Exercise 3:
public int manhattanDistance(Point other){
 return (Math.abs(x-other.getX()) + Math.abs(y-other.getY()));
}
Exercise 4:
public boolean isVertical(Point other){
 return(x == other.getX());
}
Exercise 5:
public double slope(Point other){
 if(x == other.getX())throw new IllegalArgumentException("Your x values can't be the same!");
 return Math.round((((y2-y1)/(x2-x1)) * 10000.0) / 10000.0); //return((y-other.getY())/(x-other.getX));
}
Exercise 6:
public boolean isCollinear(Point p1, Point p2){
 return(slope(p1) == slope(p1));
 }