How to install Qt on Ubuntu

Qt is a toolkit for creating GUI applications for computer and mobile platforms.Qt is a cross-platform application development framework and uses c++(primarily).Qt is a free and open source;KDE desktop environment is based on Qt.
Qt class library | Important Features

• Support 3D with OpenGL
• multi-threading features
• XML,Networking and database functionality
• complete set of easily customizable User Interface controls
• ECMA standard script engine

Qt for Ubuntu 10.04
On Ubuntu 10.04 if you want to create gui programs with C++ programming language then you can use Qt.First install Qt from Synaptic Package Manager or Ubuntu Software center or from command line.
Installing Qt on Ubuntu 10.04

1. Go to System->Administration->Synaptic Package Manager and enter the login password when prompted.

2. Next,Type “qt4” in quick search bar(Located at top-center position in the window).

3. Then select the Qt packages and libraries you need to install(Some of them may be installed already if you are using KDE desktop or applications).Then click on apply to install the selected applications.

4. Now wait for the installation to complete.Now you are ready to use it.
There are other Qt based applications available to make the GUI and widget design much easier like- Qt4 IDE,Qt4 Designer,Qt4 Settings,Qt4 Assistant;all of these applications you can install in one click from Ubuntu Software Center.Click on Applications->Ubuntu Software Center and search for “qt4″ and click on install button(In that row) to install any application.