After completing this chapter, you will be able to:
Declare, initialize, copy, and use array variables.
Declare, initialize, copy, and use variables of various collection types.
So far, you have seen how to create and use variables of many different types. However, all the examples of variables you have seen so far have one thing in common—they hold information about a single item (an int, a float, a Circle, a Time, and so on). What happens if you need to manipulate sets of items? One solution would be to create a variable for each item in the set, but this leads to a number of further questions: How many variables do you need? How should you name them? If you need to perform the same operation on each item ...