C++ and Algorithmic Thinking for the Complete Beginner

Chapter 16 The Single-Alternative Decision Structure

16.1 The Single-Alternative Decision Structure

This is the simplest decision control structure. It includes a statement or block of statements on the “true” path only, as presented in the following flowchart fragment, given in general form.

If Boolean_Expression evaluates to true, the statement, or block of statements, of the structure is executed; otherwise, the statements are skipped.

The general form of the C++ statement is

if (Boolean_Expression) {

A statement or block of statements

}

Note that the statement or block of statements is indented by 2 spaces.

In the next example, the message ...