Win a copy of Rust Web Development this week in the Other Languages forum!
  • Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Tim Cooke
  • Campbell Ritchie
  • Ron McLeod
  • Liutauras Vilda
  • Jeanne Boyarsky
Sheriffs:
  • Junilu Lacar
  • Rob Spoor
  • Paul Clapham
Saloon Keepers:
  • Tim Holloway
  • Tim Moores
  • Jesse Silverman
  • Stephan van Hulst
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Piet Souris
  • Frits Walraven

complex conditions in switch statement is possible?

 
Ranch Hand
Posts: 102
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi Guys,

Is it possible to do the following condition in switch statement?
I know its crazy to do this using switch but my question is what level of support does switch statement provides.



Thanks,
Mahendran
 
Rancher
Posts: 43027
76
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
See "SwitchLabel" in the JLS: http://java.sun.com/docs/books/jls/third_edition/html/statements.html#258896
 
Ranch Hand
Posts: 174
Java
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You expresssion leads to a boolean ....
Switch expression cannot be "Boolean".
 
lowercase baba
Posts: 13018
66
Chrome Java Linux
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
assuming i is an int, you could do this:



I wouldn't RECCOMEND it, but it could be done.
 
Sheriff
Posts: 22566
122
Eclipse IDE Spring VI Editor Chrome Java Windows
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
That code is not the same because i < 10 && i > 20 will never be true. A number cannot be both smaller than 10 and larger than 20.
 
fred rosenberger
lowercase baba
Posts: 13018
66
Chrome Java Linux
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Good point. I guess i read it as an 'or'. giving up coffee sucks.
 
Mahendran Aiyappan
Ranch Hand
Posts: 102
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Correction please:



Thanks,
Mahendran
 
Ranch Hand
Posts: 300
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Why do you want to use switch statement?

Anyways, The answer has already been given by Fred.



 
Marshal
Posts: 74634
335
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
You could try switch (i / 10) . . ., but that is not exactly what you wrote.
 
You showed up just in time for the waffles! And this tiny ad:
Building a Better World in your Backyard by Paul Wheaton and Shawn Klassen-Koop
https://coderanch.com/wiki/718759/books/Building-World-Backyard-Paul-Wheaton
reply
    Bookmark Topic Watch Topic
  • New Topic