Groups | Search | Server Info | Keyboard shortcuts | Login | Register [http] [https] [nntp] [nntps]

Groups > comp.lang.java.programmer > #25188

Re: Primitive return value after exception in method

Show all headers | View raw

On 01.09.13 08.30, Richard Maher wrote:
> int fred = -1;
> try {
> fred = someMethod(String blah);

This is a syntax error.

   fred = someMethod("blah");

> } catch (e) {};
>
> Now before someMethod raised an exception it had set the designated and
> referenced RETURN value to say 1, what will the value of fred be?

If someMethod throws an exception it never returns normally and so fred 
never gets assigned anything else but it's initial value -1.

Java does not pass any arguments or return values by reference. Although 
the passed values might be references itself. But this makes no 
difference here. Fred is never changed by the call to someMethod if 
someMethod throws, regardless of its return type.

The story changes only if you pass a reference type to someMethod and 
someMethod make changes to this instance before the exception is thrown.


Marcel

Back to comp.lang.java.programmer | Previous | Next — Previous in thread | Next in thread | Find similar | Unroll thread

Thread

Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-01 14:30 +0800
  Re: Primitive return value after exception in method Marcel Müller <news.5.maazl@spamgourmet.org> - 2013-09-01 09:23 +0200
    Re: Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-01 15:38 +0800
    Re: Primitive return value after exception in method Arne Vajhøj <arne@vajhoej.dk> - 2013-09-01 11:49 -0400
      Re: Primitive return value after exception in method Marcel Müller <news.5.maazl@spamgourmet.org> - 2013-09-01 19:05 +0200
        Re: Primitive return value after exception in method Robert Klemme <shortcutter@googlemail.com> - 2013-09-02 08:34 +0200
          Re: Primitive return value after exception in method Arne Vajhøj <arne@vajhoej.dk> - 2013-09-02 22:18 -0400
          Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 09:12 +0100
            Re: Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-08 17:16 +0800
              Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 12:39 +0100
                Re: Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-08 19:49 +0800
                Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 12:59 +0100
                Re: Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-08 20:13 +0800
                Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 13:15 +0100
                Re: Primitive return value after exception in method Richard Maher <maher_rjSPAMLESS@hotmail.com> - 2013-09-08 20:20 +0800
                Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 13:27 +0100
            Re: Primitive return value after exception in method Robert Klemme <shortcutter@googlemail.com> - 2013-09-08 12:33 +0200
              Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 12:41 +0100
                Re: Primitive return value after exception in method Robert Klemme <shortcutter@googlemail.com> - 2013-09-08 14:15 +0200
                Re: Primitive return value after exception in method lipska the kat <"nospam at neversurrender dot co dot uk"> - 2013-09-08 13:24 +0100
  Re: Primitive return value after exception in method Patricia Shanahan <pats@acm.org> - 2013-09-01 13:57 -0700

csiph-web