what is Encapsulation

Encapsulation: - wrapping of data in single unit. also we can say hiding the information of essential details. Example: You have a mobile phone.... there it some interface which helps u to interact with cell phone and u can uses the services of mobile phone. But the actually working in cell phone is hide. u don't know how it works internally.

Encapsulation:-- Information hiding.
Abstraction:-- Implementation hiding.

How To Install Subversion/SVN in Ubuntu on Command Line

To install Subversion/SVN in Ubuntu on the command line, open the Terminal by pressing together: Ctrl + Alt + T

Run this command to install Subversion/SVN:

sudo apt-get install subversion

Git Commands – Quick Reference

These common Git commands are listed here for quick reference.

Create a new branch in Git


$ git branch Branch_Name


See all branches:


$ git branch -a


Checkout a branch in Git


$ git checkout Branch_Name


Delete all directories named “_vti_cnf”


$ find . -type d -name '_vti_cnf' -print0 | xargs -0 git rm -r --


Add files to be committed: add only files created or modified, not those deleted.


$ git add .


Add files to be committed: add only files deleted or modified, not those created.


$ git add -u


Add files to be committed: add all files, deleted, modified, or created.


$ git add -A


Remove a directory from a Git repository


$ git rm -r -f Directory_Name


Remove existing files from a Git repository


$ git rm -r --cached File_Name


Undo a previous commit


$ git revert HEAD


Delete a branch in Git, locally


$ git branch -D work


Delete a remote branch (i.e. at GitHub.com)


$ git push origin --delete work


List all existing tags


$ git tag


Tag a new release version


$ git tag -a 1.3.6 -m "Tagging 1.3.6"


Tag the new release on GitHub.com


$ git push origin --tags