[6212] in java-interest
Re: Handling Exceptions - doubts ....
daemon@ATHENA.MIT.EDU (Jeff Marin)
Mon Mar 25 19:58:29 1996
Date: Mon, 18 Mar 1996 23:12:26 -0500
Reply-To: Java Interest <JAVA-INTEREST@JAVASOFT.COM>
From: Jeff Marin <jmarin@MARS.SUPERLINK.NET>
To: Multiple recipients of list JAVA-INTEREST
<JAVA-INTEREST@JAVASOFT.COM>
Dhaval M Shah wrote:
>
> Hello Everybody,
>
> I am not able to compile this code, because the compiler says....
>
> -----
> >filewindow.java:71: Exception java.io.IOException must be caught, or it must be declared in the throws clause of this method.
> fh.openfiles(infilename,indirectory);
> ^
> >1 error
> -----
>
> While my program code is like this :
>
> -----
>
> class Filehandler
> {
> public void openfiles(String infile, String indir)
> throws java.io.IOException
> {
> File newfile = new File(indir, infile);
> FileInputStream fis = new FileInputStream(newfile);
> FileOutputStream fos = new FileOutputStream(newfile);
> System.out.println("First Byte read is : " + fis.read());
> }
> }
>
> public class filewindow extends frame
> {
> .....
> .....
>
> public boolean handleEvent(Event event)
> {
> ....
> ....
>
> Filehandler fh = new Filehandler();
> fh.openfiles(infilename,indirectory);
> }
>
> ....
> }
>
> -----------
>
> Can somebody point out where I am going wrong - since I have decl.
> java.io,IOException for void openfiles.
>
> Thanks
>
> Dhaval
> --
> =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
> Dhaval M. Shah
> dms03@cs.uow.edu.au (Home) : +61 42 258519
> Dept. of Computer Science
> University of Wollongong 2/13 Catherine St., Gwynneville,
> NSW 2522 Australia NSW 2500 Australia
> =+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+=+
Try using try :) around the fh.openfiles line. You have correctly
declared the openfiles functions as throwable but then yuou do not
follow it up by catching the Exception it may throw.
--
************************************************************************Jeff Marin jmarin@superlink.com
@Work Technologies http://www.worktechs.com
< "To err is human, to not learn JAVA mentally healthy but unavoidable!"
>
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