Adding a first attempt at all the methods required in this homework.

1 job for master in 1 minute and 20 seconds (queued for 1 second)
Status Job ID Name Coverage
  Test
failed #8333
maven_build

00:01:20

 
Name Stage Failure
failed
maven_build Test
[ERROR] /builds/mlundqu2/306ass4/fourthassignment/src/test/java/com/ds/fourthassignment/Test_DoublyLinkedList.java:[10,49] incompatible types: java.lang.String cannot be converted to com.ds.fourthassignment.Scientist
[ERROR] -> [Help 1]
[ERROR]
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR]
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException
ERROR: Job failed: exit code 1