Re: println-Bug in Java

[David Daney <ddaney at avtrex dot com>]

Bojan Antonovic wrote:
> Per Bothner wrote:
>
> > Bojan Antonovic wrote:
> >
> > > So println with a char and a number (int or double) works wrong!
> >
> >
> >
> > No.  Read the specification of '+' in the Java Language Specification.
>
>
> I read it.
>
> > > Why ist his bug not fixed?
> >
> >
> >
> > Because it's not a bug.
>
>
> System.out.println('a'+'b') gives 195. + for Strings means 
> concatenation. + for chars should return Strings, and not interpreting 
> them as numbers and adding them. So for me this is a bug in the Java 
> Language Specification, because it leads to misbehaviour.
>
> For me, this thing is cleared, and I don't want to polute 
> java@gcc.gnu.org with discussions about facts they can't change! :)

Per is correct, you are mistaken.

The JLS v2 section 2.6.10 specifies what should happen in the case of 
numeric operands.  In the case of two char operands they both get 
promoted to int.

David Daney.