Refer to the following Java code. This code is meant to implement an ADT that will allow us to sort mountain bikes based on seat height. The code below won't compile. Why? public class MtnBike implements Comparable private int gear; private int speed; private int seatHeight; private int frameHeight; public MtnBike(int seatHeight, int startSpeed, int startGear) { speed = startSpeed; gear = startGear; seatHeight = seatHeight; } public void applyBrake(int decrement) { speed -= decrement; } public void speedUp(int increment) { speed += increment; } public void setHeight(int newValue) { seatHeight = newValue; }