Enable workspaces on Ubuntu 14.04

By default the workspaces feature is not enable on Ubuntu 14.04,  hence you can use follow steps to enable it:

1. Press Windows Key>> Type "appearance" and click Appearance icon
2. Click "Behaviour" tab
3. Check "Enable workspaces" and "Add show desktop icon to the launcher"

[Reference]

• How to use different workspaces on Ubuntu 14.04?

How to install JDT on Eclipse?

1. Help >> Install New Software...
2. Select the eclipse update site, shown as follow based on your eclipse standard base:
3. Select "Programming Language" and then select "Eclipse Java Development Tools".

[Reference]

• Install eclipse JDT on top of CDT
• Eclipse 4.3 (Kepler) for C/C++ Programming How To Install Eclipse CDT 8.2 and Get Started