CSC 15 lab 12

		      Due Wednesday 12/10


 For this lab, you will practice fundamental operations on arrays as
well as create a graphical user interface.

 Essentially, you are to:

 Write a class that contains, among other possible elements, a variable
 representing an array of integers.  This class should extend
 JFrame and implement ActionListener.

 The constructor function of the class should creat the array.  Use at
 least five integers for the array. The constructor should take as
 a parameter the number of elements in the array.

 Write functions within the class that does the following (all these
 functions operate on A, which is already declared inside the class!)

 1. compute and return the sum of all the integers in the array.
 2. compute and return the largest integer in the array, as
    well as the index of the largest integer.
 3. swap adjacent elements that are out of order (as done in bubblesort)
 4. Indicate which array elements are even, and which are odd.
    A number n is even if n%2==0, and odd otherwise.  In the
    gui, you need to color the odd elements red and the even elements
    green (use the setBackground function on the JTextFields).

 5.  Your gui must be similar to how I described it in class.  You are
 to have text fields where the user can input integer values into the
 array A.  There should be 4 or more buttons each representing a
 function to be computed for the array.  There should also be another
 text field displaying the result of the function.  Since you don't
 know how many text field you'll need, you'll have to create an array
 of them and use a formula to determine where to place them on you gui.
 This part may be tricky, so you might want to start with just a fixed
 size array - say 5 integers, and later generalize it to allow for any
 number of integers.

 Note, give a JTextField F, F.getText() returns a string representing
 the content of the field.  If the field contains a number such as
 "12", you need to call Integer.parseInt to convert it to an int.
 That is, Integer.parseInt(F.getText()) will give you the number
 displayed in F.  F.setText(""+x) will output x to F.  Java will
 automatically convert x to a string, regardless of what it is.


THINGS TO WATCH OUT FOR:  You'll need BOTH an array of integers, AND
a parallel array of JTextFields - don't confuse them.  Also, don't confuse
the difference between the indices and the contents of the arrrays.