Java™ How to Program, Seventh Edition

Summary

Section 6.1 Introduction

• Experience has shown that the best way to develop and maintain a large program is to construct it from small, simple pieces, or modules. This technique is called divide and conquer.

Section 6.2 Program Modules in Java

• There are three kinds of modules in Java—methods, classes and packages. Methods are declared within classes. Classes are typically grouped into packages so that they can be imported into programs and reused.

• Methods allow you to modularize a program by separating its tasks into self-contained units. The statements in a method are written only once and hidden from other methods.

• Using existing methods as building blocks to create new programs is a form of software reusability that allows you to avoid ...