Question
To recover the overall functionality and good organization of your product ordering Java application, you are considering use of some of the Java predefined methods. Some of predefined Java methods that you are evaluating include -class Math methods, class String methods, class NumberFormat methods, class Calendar methods, and class DateFormat methods. Go to Internet to explore other Java classes and their methods.
Which predefined Java methods may you consider using and why?
What are some other sources for finding predefined Java classes and method that are not in the text book?
What other programmer-defined methods may you consider developing based on your class diagrams and use case diagram you developed?