Java, A Beginner's Guide, 5th Edition, 5th Edition

The if Statement

Chapter 1 introduced the if statement. It is examined in detail here. The complete form of the if statement is

where the targets of the if and else are single statements. The else clause is optional. The targets of both the if and else can be blocks of statements. The general form of the if, using blocks of statements, is

If the conditional expression is true, the target of the if will be executed; otherwise, if it exists, the target of the else will be executed. At no time will both of them be executed. The conditional expression ...