Dealing with weird “^M” characters in your file, say its named WeirdStuff.java. Run “dos2unix WeirdStuff.java WeirdStuff.java” in the Unix shell. This will overwrite your original file with a new one that does not contain the “^M” characters. If you want the new file to be written to a different file name then use “dos2unix WeirdStuff.java NewStuff.java”.
Do not create multiple instances of the Scanner/BufferedReader class
Write input for your programs into text files and use input redirection, eg. “java threeNPlus1 < td001.txt”, to pass the input to your program. This way you will be able to simulate how CourseMarker does the dynamic testing.
When you setup the lab exercises in CourseMarker it will create a testdata.txt file containing some sample input which you can use to test your program. Remember to create your own input file to test boundary conditions.

Setup the lab using the “setup” button in CourseMarker
Login to sunfire using SSH Secure Shell Client
Invoke the Secure File Transfer Client to transfer the .java file from the CMhome directory of the current lab to your Unix account
Develop your program in Unix using one of the Unix editors, eg Vim, Emacs
Test your program by creating your own test cases
Use the Secure File Transfer Client to transfer the .java and .class file from your Unix account back into the appropriate directory inside CMhome
Click on the “submit” button CourseMarker to submit your program