Java 6 Illuminated: An Active Learning Approach, 2nd Edition

208 CHAPTER 5 Flow of Control,Part 1: Selection

Introduction

In Chapter 1, we said that the order of a program’s instructions is critical

to producing correct results. The order in which the instructions are exe-

cuted is called the flow of control of the program. There are essentially

four types of flow of control: sequential execution, method calls, selec-

tion, and looping. Most programs use a combination of all types of flow

of control.

So far, our programs have used sequential execution and method calls

exclusively. In our Java applications, the JVM executed the first instruction

in the main method, then executed the next instruction in main, and ...