Learn Java with Math: Using Fun Projects and Games

© Ron Dai 2019

R. DaiLearn Java with Mathhttps://doi.org/10.1007/978-1-4842-5209-3_19

19. Switch Statement

Ron Dai¹ 

(1)

Seattle, WA, USA

 

Utilizing a switch conditional statement instead of an if statement can sometimes present clearer code logic. When we have a variable or an expression containing variables that may have different resulting values followed by different actions, it is a good opportunity to use switch .

switch (<expression>) {

       case <result 1>:

              <action 1>;

              break;

       case <result 2>:

              <action 2>;

              break;

       ......

       case <result n>:

              <action n>;

              break;

       default:

              <other action>;

              break;

}

A simple application of a switch ...