Does the switch statement accepts a byte to evaluate?

[LuckyStarr]

Hi all,

I'm getting a very strange exception in my code and I started suspecting about a switch statement.

I noticed that it evaluates a byte, but I've never seen a code like this, I learned that the switch only evaluates integer expressions. Even the java tutorial doesn't mention anything about bytes, only integers.

Is the code wright or wrong? I would test myself, but the problem only occurs with a very far away customer.

Example Code:

public static final byte FORM_DATE = 3;

...

byte form = ...;

...

try{
switch(form){

case FORM_DATE: "do something"
break;

default: throw new IllegalArgumentException( "Invalid form = " + form );
}
}


---
There is no Knowledge that is not power
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[prosper]

class sw
      {
       public static void main(String args[])
              {
               int a = 1;
               byte b = -128; // The range of b should be between -128 and +127
               char c = 1;
               short d = 1;
               long l = 1;
             
               switch(a)
                     {
                      case 1:System.out.println("a");
                     }
               
               switch(b)
                     {
                      case 1:System.out.println("b");
                     }
               switch(c)
                     {
                      case 1:System.out.println("c");
                     }
               switch(d)
                     {
                      case 1:System.out.println("d");
                     }
               switch((int)l)
                     {
                      case 1:System.out.println("l");
                     }

              }
      }

 

[toolkit]

This is an example of Widening Primitive Conversion

 

[LuckyStarr]

I will take this as a "Yes, the switch can evaluate a byte".

Thanks



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There is no Knowledge that is not power
---