Instructions: In VB.net

Object Oriented Programming You are going to enhance the application by creating two main classes

1- Create a class for the math (+","-") operations -- name the class "MathOp"

2- Extend the class using inheritance to include ("*","/") name the class "MathOp2"

3- Create the following class/function when select a line from the list box, the user should be able to modify the values/operations and save it to the listbox/database Lets say the user clicked on 1+3=4, the values 1,3 should be displayed in the input text boxes.

Submission Instructions:

Develop an Object-Oriented documentation that include the following

1- List of all classes and their purposes

2- Relationship between classes

3- Data dictionary for each class, method and the return type of each method

4- Optionally you can develop an UML (Unified Modeling Language) using any of these tools: - MS Word, Visio, or UML toolkit