$20.00 Java mortgage calculator with output file
Found in Computer-Science: General-CSChapter 1, # 0
Q:Final addition.
There are two goals, one is to save the data to an external file from the Amortization table and the other is to use an interface (or at least identify in your code with a comment that I can find where you have already implemented an interface). A hint: since week 2 you have been using an interface. See below.
You have already been implementing an interface in with your event handler listener called ActionListener. This needs to be explained as a minimum requirement in your program code for the interface portion with a comment and how it is used..
The output file should contain the text as displayed in the Amortization schedule. Hint, if you use a BufferedWriter and just write the text out as you added it to the amortization table it can be done easily. If it is easier you can access the whole text from the Amortization table when you are done writing and then write this as one long string to the output file.
The final assignment must use a class that prevents faulty input and handles any errors such as missing values, invalid input and a missing input file.



