11.2. Objectives of This Chapter

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By the end of this chapter, you should

1. Understand how to create a more realistic application using the tools we already have,

2. Know how to use the switch statement to select among a number of alternatives,

3. Know how to use the enum data type to give names to constant values that will be used to refer to items in a list,

4. Understand the advantages of creating variables at the point of use rather than at the beginning of a function,

5. Know how to find or change the size of a Vec dynamically when necessary, and

6. Understand how to use virtual functions for implementation purposes within a polymorphic class hierarchy.