deleted sample.java
changed content of assignment.txt
Merge pull request #8 from dolob-mrmr/hamzah

deleted sample.java
add helloworld.java and edit line in printgit.java
Merge pull request #9 from dolob-mrmr/vincent

add helloworld.java and edit line in printgit.java
added new helloworld by Hamzah.

Also edited printgit.java
Merge pull request #10 from dolob-mrmr/hamzah

added new helloworld by Hamzah.
edit my line again
Merge pull request #11 from dolob-mrmr/vincent

edit my line again
Merge pull request #12 from dolob-mrmr/master

testing