For this task, you are required to update your application to have a graphical user interface (GUI) built using Windows Presentation Foundation (WPF) All the same functionality must be available in...

For this task, you are required to update your application to have a graphical user interface (GUI)

built using  Windows Presentation Foundation (WPF)

All the same functionality must be available in the new user interface that was in the command

line application from Task 2 (just presented in a more user-friendly way), with  one of the following features added:

1. The user shall be able to choose to save up a specified amount by a certain date for a

specified reason, e.g. save R100 000 for an honours degree over five years. Given the

interest rate that will be earned on the savings, calculate how much the monthly saving

should be to reach the goal.