Navigate to http://www.eclipse.org/downloads/ and below is the page.

Select eclipse type

Select system

Download from the server

Then it would download the file into the /home/user/Download/ folder.

In the download folder, double click the .gz file it will open Archive Manager, then drag the folder name eclipse out and put any folder it doesn't matter.

Open up the folder and double click Eclipse to run

Install Doxygen onto linux

Install this one is a bit tricky, but it can be done. I refers to this site http://www.stack.nl/~dimitri/doxygen/download.html

Pay very careful attention here, I follow the below steps in GIT repository (below) and I encounters a few errors when doing

GIT repository

The GIT repository for doxygen is hosted on GitHub. In this repository you can be find the latest "bleeding edge" version of doxygen.

If you have GIT installed, you should do the following to get the initial copy of the repository:

git clone https://github.com/doxygen/doxygen.git
cd doxygen

After that you can use

mkdir build
cd build
cmake -G "Unix Makefiles" ..

The errors I got were

found missing FLEX

apt-get install FLEX

after that continue with cmake -G "Unix Makefiles" ..

found missing BISON

apt-get install BISON

after that continue with cmake -G "Unix Makefiles" ..

found unsuitable Qt version

apt-get install qt-sdk

this qt-sdk could take up long long time. 200+ MB

after that continue with cmake -G "Unix Makefiles" ..

cmake -G "Unix Makefiles" ..
make

To force a fresh build after an earlier check-out simple remove the build directory and redo the steps above.

After the binaries have been built, you can use

make install

to install them.

Public access to the GIT repository is read-only at the moment. So it is not possible to commit changes, but you can send me patches (use diff -u) if you think they should end up in the mainline, and I'll review and include them.

Doxygen was installed in /usr/local/bin/doxygen