Starting Out with Java: From Control Structures through Objects (6th Edition)

Out. println{"March"); > else < procedure. out. println("Error: Invalid month"); O observe: The default part is non-compulsory. in the event you go away it out, in spite of the fact that, this system wil have now the following to department to if the teatExpresaion does not fit any of the c a s e values. this system in Oidc directory . 1-11 indicates how an easy change assertion works. Code directory 3-13 (SwitchDaao. Java) import java. util. Scannarj / / wanted for Scanner clasi a J /•• This software demonstrates the swap assertion •i */ 7 public category SwitchDemo eight nine 10 < eleven public s t a t i c void aain(String[1 args) int quantity; / / a bunch entered through the person L2 Ii l-i 15 sixteen 17 18 19 20 21 22 23 24 / / Create a Scanner item for keyboard enter. Scanner keyboard • new Scanner(System. in); / / Get one of many numbers I, 2, or three from the consumer approach. out. print("Enter 1, 2, or three: " ) ; quantity - keyboard. nextlnt(); / / make certain the quantity entered, change (number) { case It procedure. out. println("You entered l a " ) ; a hundred and fifty five 156 bankruptcy three determination constructions 25 26 27 28 29 30 31 32 33 34 35 36 holiday; case 2 : S y s t e m . o u t . p r i n t l n ( " Y o u entered 2 . ' ) ; holiday; case three: S y s t e m . o u t . p r i n t l n ( " Y o u entered three . " ) ; holiday; default: S y s t e m . o u t . p r i n t l n f " T h a t ' s n o t 1 , 2, or three! ' ) ; > 1 > P r o g r a m O u t p u t w i t h E x a m p l e I n p u t S h o w n I n daring input 1 , 2, or three: 2 [Enter] You entered 2 . P r o g r a m O u t p u t w i t h instance I n p u t S h o w n I n daring input 1 , 2, or 31 I [Enter] T h a t ' s :not 1 , 2 , or three! become aware of the b r « okay statements which are within the c«s« l , c u « 2, and case 1 sections, •witch (number) case 1i process. out. println("You entered 1. "); break;4 case 2i method. out. printing"You entered 2 . " ) ; break)4 case 3i procedure. out. printing"You entered three. "); holiday) «default: procedure. out. println("That's now not 1, 2, or 31"); > The case statements convey this system the place to begin executing within the block and the holiday statements express this system the place to forestall. with no the holiday statements, this system might execute the entire traces from the matching case assertion to the tip of the block. o observe : The default part (or the final case senior i if there's no default) doesn't want a holiday assertion. a few progra mmers like to positioned one th<•re besides for consis- tency. three. nine The swap assertion this system in Code directory 3-14 is a amendment of Code lasting 3-13, with out the holiday statements. Code directory 3-14 i < NoBreaks. j ava) import Java. util. Scanner; / / wanted for Scanner cl< 2 i /** This application demonstrates the swap assertion. A five */ 6 7 pubiic ciass NoBreaks I < public s t a t i c void nain(String[] args) i int quantity; / / a host entered through the consumer nine 10 u 12 thirteen 14 15 sixteen 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 / / Create a Scanner o b j e c t for keyboard i n p u t . Scanner keyboard • new S c a n n e r ( S y s t e m . i n ) ; / / Get one of many numbers 1, 2, o r three froa t h e u s e r . S y s t e m .