First, implement a very minimal Rectangle class.
A Rectangle stores a length and a width.
The length and width may be represented as integers using
an int type.
For this assignment you need to implement the following functionality:
Two constructors:
the first takes the length and width as ints.
The second takes a String that has the length and width
(e.g. "13 7").
The constructors should throw an IllegalArgumentException
if the parameters are invalid.
getLength
getWidth
getArea
getPerimeter
equals
toString
Second, implement Assign1 that reads a file that contains
lines, each representing a Rectangle.
Assign1 will store the contents of the file in an
ArrayList<Rectangle>, and then print the ArrayList.
It will also print the total area and perimeter of all the Rectangles
and any Rectangle whose area AND perimeter is above the average.
The data file is assign1.txt.