Android™ How to Program, Second Edition

Selection Statements in Java

Java has three types of selection statements. The if statement either performs (selects) an action, if a condition is true, or skips it, if the condition is false. The if...else statement performs an action if a condition is true and performs a different action if the condition is false. The switch statement performs one of many different actions, depending on the value of an expression.

The if statement is a single-selection statement because it selects or ignores a single action (or, as we’ll soon see, a single group of actions). The if...else statement is called a double-selection statement because it selects between two different actions (or groups of actions). The switch statement is called a multiple-selection ...