Modify Fig. 20.9 to display a greeting to the user which contains the name and version of their browser.

Modularity can have a negative as well as a positive effect. A program that is over-modularized performs its operations in very small modules, so a reader has trouble acquiring a perspective. That is, although it may be easy to determine what many individual modules do and what small groups of modules do, it is not easy to understand what they do in their entirety as a system. Suggest an approach that can be used during program development to provide this perspective.

What will be an ideal response?

Which of the following statements are true?

a. Collections.shuffle(list) randomly reorders the elements in the list. b. Collections.shuffle(list, Random) randomly reorders the elements in the list with a specified Random object. c. If list1 and list2 are identical, the two lists may be different after invoking Collections.sort(list1) and Collections.sort(list2). d. If list1 and list2 are identical, the two lists are still identical after invoking Collections.sort(list1, new Random(3)) and Collections.sort(list2, new Random(3)) with the same Random object.