Can I have a Switch Statement with more than one Case Criteria?

Question

Can I have a switch statement like this:

...

switch (temp)
{
case "NW" or "New":
temp = "new stuff"
break;
}

...

how can the string temp be both "NW" AND "New"? do you mean OR? — Nathan Koop, Jun 08 '09 at 15:31
You don't really mean AND do you, you mean OR - how would it be possible for temp to = "NW" and "New"? Anyway, see all the fallthrough answers. — annakata, Jun 08 '09 at 15:32

laginimaineb · Accepted Answer · 2009-06-08T17:18:50.360

16

No, but you can use (at least in Java)

switch (temp) {
    case "NW":
    case "New":
       temp="new stuff";
       break;
}

edited Jun 08 '09 at 17:18

answered Jun 08 '09 at 15:31

laginimaineb

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C# doesn't allow fall-through case statements. Might be worth adding it. Your answer IS perfect for Java though :D (+1) – DevinB Jun 08 '09 at 16:51
@devinb - sorry, I don't get what that means. Could you elaborate please? – laginimaineb Jun 08 '09 at 17:22
4

C# does allow fall through in this one special case were there is nothing in a particular case. So the above is valid C# – Martin York Jun 08 '09 at 17:32
@Martin, you are correct. I'd edit my comment but I can't. Thanks for pointing it out :) – DevinB Jun 10 '09 at 18:00

score 10 · Answer 2 · edited May 23 '17 at 09:57

10

Yes. This is how it is done.

switch (temp)
{
   case "NW":
   case "New":
     temp = "new stuff"
     break;
}

Actually, I answered this very same question before.

edited May 23 '17 at 09:57

Community

1
1

answered Jun 08 '09 at 15:31

Jose Basilio

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score 3 · Answer 3 · answered Jun 08 '09 at 15:31

3

Try

switch (temp)
{
case "NW":
case "New":
temp = "new stuff"
break;
}

answered Jun 08 '09 at 15:31

Brandon

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score 3 · Answer 4 · answered Jun 08 '09 at 15:31

3

Assuming C#, you want:

switch(temp)
{
    case "NW":
    case "New":
        temp = "new stuff";
        break;
}

answered Jun 08 '09 at 15:31

Brian Genisio

47,787
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score 2 · Answer 5 · answered Jun 08 '09 at 15:32

2

switch (temp) {
    case "NW":
    case "New":
        temp = "new stuff"
        break;
    default:
        Console.WriteLine("Hello, World!");
        break;
}

answered Jun 08 '09 at 15:32

jason

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score 1 · Answer 6 · answered Jun 08 '09 at 16:14

I know you asked about C#, and have good answers there, but just for perspective (and for anyone else reading that might find it useful), here's the VB answer:

Select Case temp
  Case "NW", "New"
    temp = "new stuff"
  Case Else
    'something else...
End Select

Notice that there's no "break"--VB does not drop through cases. On the other hand, you can have multiple match conditions on a single case.

Be care you DON'T do this

...
  Case "NW" Or "New"
...

What you have there is a single condition with a bitwise Or between the two terms....

Can I have a Switch Statement with more than one Case Criteria?

6 Answers6