| try-catch [message #172328] |
Mon, 09 August 2004 02:55  |
Eclipse User |
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If I select a few statements and ask to surround them with try-catch, why do
they always get wrapped with Excpetion and not the specific exceptions
thrown in that block?
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| Re: try-catch [message #172615 is a reply to message #172437] |
Tue, 10 August 2004 03:49  |
| Eclipse User |
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Originally posted by: hcs33.egon.gyaloglo.hu
Hi,
Yes, this can be a bit confusing.
If you have a statement which can throw an Exception, invoking Quick-Fix
(pressing Ctrl+1) shows an option 'Surround with try/catch' with a 'J!'
icon. This is a shorthand for Source->Surround with try/catch block for one
statement.
When you select some code and invoke Quick-Fix you get a number of 'Surround
with ...' options with a 'document' icon. Those are simply call the
templates (Preferences->Java->Editor->Templates) which have the variable
${line_selection} in their body. In this case you have to call the function
from the Source menu.
HTH,
Regards,
Csaba
"Zohar" <david_fire4@hotmail.com> wrote in message
news:cf81eh$b9i$1@eclipse.org...
> DataOutputStream dos = new DataOutputStream(new ByteArrayOutputStream());
> String param = "ksksk";
> dos.write(param.length());
> dos.writeBytes(param);
>
> I select the 2 last statements.
> CTRL+1
> I select "Surround with 'try'(try catch block)"
> I get a catch for Exception, and not IOException.
>
> If I use the Source->Surround with try/catch Block, then I get it right...
>
>
>
> "Andrea Spinelli" <aspinelli@no-spam-please-imteam.it> wrote in message
> news:Xns954090290AF23aspinellinospampleas@204.138.98.10...
> > "Zohar" <david_fire4@hotmail.com> wrote in
> > news:cf771g$v8s$1@eclipse.org:
> >
> > > If I select a few statements and ask to surround them with try-catch,
> > > why do they always get wrapped with Excpetion and not the specific
> > > exceptions thrown in that block?
> >
> > test:
> >
> > import java.sql.PreparedStatement;
> >
> > ...
> >
> > PreparedStatement ps = null;
> > ps.execute();
> >
> > Now Eclipse highlights ps.execute();
> >
> > Ctrl-1 and you obtain:
> >
> > PreparedStatement ps = null;
> > try {
> > ps.execute();
> > } catch (SQLException e) {
> > // TODO Auto-generated catch block
> > e.printStackTrace();
> > }
> >
> > SQLException is specific to the context.
> > Please post an example of what you get wrong.
> >
> > HTH
> > Andrea
> >
> >
> > --
> > Andrea Spinelli - IT&T srl aspinelli@no-spam-plase-imteam.it
> > Via Sigismondi, 40 - 24018 Villa d'Alme' (BG)
> > tel: +39+035636029 - fax: +39+035638129
> > http://www.imteam.it/
>
>
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| Re: try-catch [message #173562 is a reply to message #172661] |
Tue, 17 August 2004 06:43 |
| Eclipse User |
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Originally posted by: daniel.megert.gmx.net
Zohar wrote:
>very unintuitive.
>can this be fixed?
>
>
Is there a bug report? No bug report - no fix.
Dani
>"Horváth, Csaba" <hcs33@egon.gyaloglo.hu> wrote in message
>news:cf9uce$f6$1@eclipse.org...
>
>
>>Hi,
>>
>>Yes, this can be a bit confusing.
>>If you have a statement which can throw an Exception, invoking Quick-Fix
>>(pressing Ctrl+1) shows an option 'Surround with try/catch' with a 'J!'
>>icon. This is a shorthand for Source->Surround with try/catch block for
>>
>>
>one
>
>
>>statement.
>>
>>When you select some code and invoke Quick-Fix you get a number of
>>
>>
>'Surround
>
>
>>with ...' options with a 'document' icon. Those are simply call the
>>templates (Preferences->Java->Editor->Templates) which have the variable
>>${line_selection} in their body. In this case you have to call the
>>
>>
>function
>
>
>>from the Source menu.
>>
>>HTH,
>>Regards,
>>Csaba
>>
>>"Zohar" <david_fire4@hotmail.com> wrote in message
>>news:cf81eh$b9i$1@eclipse.org...
>>
>>
>>>DataOutputStream dos = new DataOutputStream(new
>>>
>>>
>ByteArrayOutputStream());
>
>
>>>String param = "ksksk";
>>>dos.write(param.length());
>>>dos.writeBytes(param);
>>>
>>>I select the 2 last statements.
>>>CTRL+1
>>>I select "Surround with 'try'(try catch block)"
>>>I get a catch for Exception, and not IOException.
>>>
>>>If I use the Source->Surround with try/catch Block, then I get it
>>>
>>>
>right...
>
>
>>>
>>>"Andrea Spinelli" <aspinelli@no-spam-please-imteam.it> wrote in message
>>>news:Xns954090290AF23aspinellinospampleas@204.138.98.10...
>>>
>>>
>>>>"Zohar" <david_fire4@hotmail.com> wrote in
>>>>news:cf771g$v8s$1@eclipse.org:
>>>>
>>>>
>>>>
>>>>>If I select a few statements and ask to surround them with
>>>>>
>>>>>
>try-catch,
>
>
>>>>>why do they always get wrapped with Excpetion and not the specific
>>>>>exceptions thrown in that block?
>>>>>
>>>>>
>>>>test:
>>>>
>>>>import java.sql.PreparedStatement;
>>>>
>>>>...
>>>>
>>>>PreparedStatement ps = null;
>>>>ps.execute();
>>>>
>>>>Now Eclipse highlights ps.execute();
>>>>
>>>>Ctrl-1 and you obtain:
>>>>
>>>>PreparedStatement ps = null;
>>>>try {
>>>> ps.execute();
>>>> } catch (SQLException e) {
>>>> // TODO Auto-generated catch block
>>>> e.printStackTrace();
>>>> }
>>>>
>>>>SQLException is specific to the context.
>>>>Please post an example of what you get wrong.
>>>>
>>>>HTH
>>>> Andrea
>>>>
>>>>
>>>>--
>>>> Andrea Spinelli - IT&T srl aspinelli@no-spam-plase-imteam.it
>>>> Via Sigismondi, 40 - 24018 Villa d'Alme' (BG)
>>>> tel: +39+035636029 - fax: +39+035638129
>>>> http://www.imteam.it/
>>>>
>>>>
>>>
>>>
>>
>>
>
>
>
>
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