switch case valid?

[Timothy Leong]

hi, suppose I have option 1-6 that perform the same operation. can I use the following?

switch(option)
{
  case 1-6: .......break;
  case 7: ....... break;
}

using case 1-6 instead?

Thanks

[David Ulicny]

Did you try to compile it?

  
switch(option){  
case 1:
case 2:
case 3:
case 4:
case 5:
case 6:
.......break;  
 
case 7: ....... break;
}

[Timothy Leong]

i tired compile it and run. The program still works.

[David Ulicny]

Maybe I din't understand you quesion.
You want this?

case -5:
break;

[David Ulicny]

case 1-6
is the same as
case -5

so if you want 6 options
use
case 1:
case 2:
.
.
.
case 6:
....
break;

[Barry Gaunt]

The syntax for Java's switch statement can be found in this section of the Java Language Specification. As David pointed out, 1-6 is a compile time expression with value -5.