1. Rearrange the following lines of code to produce a class that describes a square with a given side length. Put instance variables and constructors first, then the mutator methods, then the accessor methods in alphabetical order. Not all lines are useful.

    ^public class Square
    +{
    + // instance variables
    . private int sideLength;
    - private int perimeter;
    ^ // constructors
    . public Square(int initialLength)
    + {
    .  sidelength = initialLength;
    . }
    ^ // mutators
    . public void grow(int amount)
    + {
    .  sidelength = sidelength + amount;
    . }
    ^ // accessors
    + public int getPerimeter()
    + {
    .  return 4 * sideLength;
    ^ }
    -return perimeter; 
    . public int getSideLength()
    + {
    - public void getSideLength()
    + {
    .  return sideLength;
    . }
    ^}