This is one of the implementation details that you just have to learn.
The only reason you might want to do this is to quickly type in commands
without using variables. If you really need to do this you can use
the java::lock command to save a reference that is not stored in a
variable. If you do not save a java object reference in a tcl variable
it will be garbage collected by the JVM because there are not "active"
refrences. What I typically do is to just use a variable with a single
letter which takes less typing then the "java0x..." type of command.
set s [java::new String "I am a java string"]
set c [$s charAt 0]
puts "c is $c"
(output is "c is I")
Mo DeJong
dejong at cs.umn.edu
On Thu, 11 Mar 1999, Sachin Thatte wrote:
> When a java::* method returns a java variable, it only works when I do a
> "set" of that variable into a local tcl variable. If I just use the
> variable returned by java::* command then it does not work in TCL.
> Following example illustrates this. Is this supposed to work any other
> way?
>
> Why does the following not work?
>
> % java::new String "aa"
> java0x1
> % java0x1 equals "AA"
> invalid command name "java0x1"
> %
>
> Where as the following works:
>
> % set some_var [java::new String "aa"]
> java0x1
> % $some_var equals "AA"
> 0
> %
>
>
> Thanks,
>
> -Sachin
> [EMAIL PROTECTED]
>
>
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