1. Define a main method that calls the method you defined in the previous exercise and handles a possible NeedlessOperationException. 2. Define a method that might throw a NeedlessOperationException,...

1. Define a main method that calls the method you defined in the previous exercise and handles a possible NeedlessOperationException.

2. Define a method that might throw a NeedlessOperationException, as described, and handles it.

3. Define a main method that calls the method you defined in the previous exercise.