Part IV
Using Program Units
In this part . . .
Way back in the Elvis Era, people thought that computer programs should be big lists of instructions. Then, during the Groovy Sixties, people decided to modularize their programs. A typical program consisted of several methods (like the main methods in this book’s examples). Finally, during the Weighty Eighties, programmers grouped methods and other things into units called objects.
Far from being the flavor of the month, object-oriented programming has become the backbone of modern computing. This part of the book tells you all about it.
