Using compareTo and Collections.sort

Question

I have a franchise class with owner(owner of franchise\'s name), state(2-character string for the state where the franchise is located), and sales (total sales for the day)<

Answer 1

In your problem statement you are saying that "compareTo is based on state ASCENDING and sales DESCENDING". Based on this your results are valid. States are in ascending order and for each state the sale is in descending order. In the very next statement you are saying (lower sales for particular stat should come first). So basically you have two conflicting requirement. Both can not be done simultaneously.

In other words do you want your program to do something else like both should be ascending or both descending or some other order. If yes then you have to modify your compareTo method accordingly.