more evidence for my point #1 from early in this thread... "checked exceptions lead to bad code"
On Sep 21, 11:31 pm, Ricky Clarkson <[email protected]> wrote: > Kevin, > > That reminds me of some code I inherited: > > if (file.exists()) { > try { > new FileInputStream(file).... > } > catch (FileNotFoundException e) { > //impossible since we checked the file before > } > > } > > Guess what? It wasn't impossible, it happened occasionally because of a > flaky shared drive. File systems are not under the program's control, so it > is unsafe to check-then-assume. Even worse, the above would not work for > files that only come into existence when opened, like nodes in /dev, /proc > or /mnt on some systems. > > On Wed, Sep 22, 2010 at 12:03 AM, Kevin Wright > <[email protected]>wrote: > > > > > In what context? > > > When opening a named file, it should be normal control flow to discover the > > name isn't valid. > > When performing subsequent operations on an already-opened handle, it's > > truly exceptional if the thing has since gone missing, > > > combining the operations is just poor design > > > 2010/9/21 Cédric Beust ♔ <[email protected]> > > >> On Tue, Sep 21, 2010 at 3:47 PM, Kevin Wright > >> <[email protected]>wrote: > > >>> What would you propose as a good example? > > >> An example of a good checked exception? > > >> How about FileNotFoundException? > > >> -- > >> Cédric > > >> -- > >> You received this message because you are subscribed to the Google Groups > >> "The Java Posse" group. > >> To post to this group, send email to [email protected]. > >> To unsubscribe from this group, send email to > >> [email protected]<javaposse%2bunsubscr...@googlegroups > >> .com> > >> . > >> For more options, visit this group at > >>http://groups.google.com/group/javaposse?hl=en. > > > -- > > Kevin Wright > > > mail / gtalk / msn : [email protected] > > pulse / skype: kev.lee.wright > > twitter: @thecoda > > > -- > > You received this message because you are subscribed to the Google Groups > > "The Java Posse" group. > > To post to this group, send email to [email protected]. > > To unsubscribe from this group, send email to > > [email protected]<javaposse%2bunsubscr...@googlegroups > > .com> > > . > > For more options, visit this group at > >http://groups.google.com/group/javaposse?hl=en. -- You received this message because you are subscribed to the Google Groups "The Java Posse" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/javaposse?hl=en.
