Boxes Class Comparison Name Write a Java program for class PlainBox which implements Comparable interface as deseribed below Description of PlainBox class: - Protected Instance variables: o a string m_shape: the shape of the box o a string m_size: the size of the box Function members: Constructor without parameters and constructor with parameters Two accessors(get operation) to get the box's shape and size o o a mutator(set operation) SetBox() which sets two instance variables o an overridden toString) method: returns the description of shape and size o override CompareTo) methood Then in main() function, create three PlainBox instances and compare them, and then output the maximum one and the minimum one