complex conditions in switch statement is possible?

[Mahendran Aiyappan]

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.

   
if (i < 10 && i > 20)
{

}

Thanks,
Mahendran

[Ulf Dittmer]

See "SwitchLabel" in the JLS: http://java.sun.com/docs/books/jls/third_edition/html/statements.html#258896

[Chinna Eranna]

You expresssion leads to a boolean ....
Switch expression cannot be "Boolean".

[fred rosenberger]

assuming i is an int, you could do this:

switch (i) {
  case 10:
  case 11:
  case 12:
  ...
  case 19:
  case 20:
     break;
  default:
    {
     //your logic here
    }
}

I wouldn't RECCOMEND it, but it could be done.

[Rob Spoor]

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]

Good point. I guess i read it as an 'or'. giving up coffee sucks.

[Mahendran Aiyappan]

Correction please:

 
if (i> 10 && i<20)
{

}
 

Thanks,
Mahendran

[Patricia Samuel]

Why do you want to use switch statement?

Anyways, The answer has already been given by Fred.

[Campbell Ritchie]

You could try switch (i / 10) . . ., but that is not exactly what you wrote.