Please post the errors. Can't help with our seeing what is going on

Before running Synaptic Package Manager, you need to first run:

$ sudo apt-get update
and just let the command finish on its own.

Alternatively, you could run the Update Manager Check function only -
do not run the Install Update or you will get more than you bargained for.

Next, after doing one of the two above actions, then launch Synaptic
Package Manager, and select what you want to install.

Let us know if how you fare following this procedure with Synaptic
Package Manager.

thanks all for help i know the problem now the problem happen because i
installed jdk and the other error programes not completely from synaptic so the
error happened and i solve it by uninstall it and reinstall it from its web site
thanks

I don't know if the book i've read is correct - but from this and what
i've experimented with i don't quite agree.

For package management one can use apt-get, aptitude, and synaptic.
However, which ever one you use you update INDIVIDUALLY. apt-get upgrade
DOES NOT upgrade synaptic. For synaptic you use RELOAD. For aptitude you
use Actions> Update or just type 'u'.

When adding/removing software aptitude provides some significantly
useful capabilities - but aptitude only remembers dependency info for
packages it has installed. As i've learnt aptitude helps control those
packages that accumulate. It is a ghastly interface but offers more
power if you can spend the time reading the manual. Why don't more use
it - i think the manual puts them off!

I use the apt-get for the command line utility but aptitude for
installing and removing.

I just ran a little experiment:
1) SPM: 21634 packages listed, 1134 installed
2) Update Manager: 108.6 MB updates available to download
3) After sudo apt-get update:
Update Manager: 246.8 MB updates available to download
SPM: 21634 packages listed, 1134 installed
SPM Reload: 21643 packages listed, 1134 installed

The significant thing that was updated was the package list available
for download to Update Manager, though it appears that after the
Reload on SPM there was no difference.

It appears that SPM that I have installed is the latest release
available 0.57.11.1ubuntu14 which may account for why SPM does not get
upgraded whichever method of upgrade is used - i.e. because it does
not yet have an upgrade at its current level of release (for Fiesty,
and is probably not going to get one with Gutsy Gibbon just around the
corner next week).

Since I never run Update Manager because there is no fine grain
control unless you uncheck everything which looks daunting, I most
often choose to use SPM.

Yes, aptitude handles the dependencies and as you say unless you
install with it you should not try to uninstall with it.

I never implied that: sudo apt-get update would do any upgrading at
all, only update the available repo lists you computer knows about
before attempting to do an update. No upgrades implied by my post.