Read write implementation
Revert "added Salary abstract method"

This reverts commit c6e9e66b9a5e14897330513d23dbedd9d7a19e44.
Revert "implemented Contract in faculty"

This reverts commit b9dd6bbecf8aaadee635fb2c668f6623839ea6fe.
Merge branch 'James' of https://github.com/seg-s/pr3 into James

Conflicts:
	Lab3/src/lab3/Faculty.java
.
Merge pull request #2 from seg-s/James

James