return y then sort them using the topComer point (hint: call the Point's compareTo method). Print the sorted list. public String toStringo ( return "+x+,+y+ public int compareT o(Point pt) ( return y-pt.y public class Point implements Com- parable Point( private int x; private int y public Pointo this(O,O) a. Write a class called Rectangle that implements the Comparable interface. The class should contain three fields: height (int), width (int), topCorner (Point). Write the necessary constructors accessors, mutators and other methods. The Point class is else return x-pt.x given below public Pointint x, int y) Write a client class that creates an ArrayList of 10 Rectangle objects called listl b. this.x x this yy Print the list Call Collections.sort(list1), to public int getXo ( sort the elements according to the width. If the widths are the equal then sort the list using the height of the rectangle and if the heights are also equal return x: public int getYO