Download ACM guide to CS - Gettysburg College Computer Science

Hitchhiker’s Guide to CS
Lee Sieger, Tim Cook, Jason Day, Zuozhi Yang
Launching DrJava from Windows Lab
Open My Computer from Start Menu
 Click on \\labserv\pclab drive
 Click on CS111 folder
 Click on drjava.bat


This should mount the CS drive in your
file explorer and also launch DrJava
MobaXterm
Install free version from…
http://mobaxterm.mobatek.net/download.html


On lab computers, can be found under the
Computer Science folder in All Programs in
the start menu
Click on Session Button

Click on SSH button at top right of
window

For Remote Host put…
gbcs#.cc.gettysburg.edu
where # is some number from 1 to 18…

Click on specify username and enter
college username

Change port to 222

Click on OK and enter password when
prompted
Mounting CS Drive
1. From the Start menu choose Computer.
 2. In the Computer window there is a “Map
Network Drive” link near the top.
 3. Enter \\ada.cc.gettysburg.edu\<username>
in the box and select a drive letter. Replace
<username> with your username.
 4. Uncheck “Reconnect at Logon”.
 5. Hit OK. A window should magically appear
containing your files.

Secure Shell

ssh
◦ Hosts: gbcsN.cc.gettysburg.edu
 N=1..22
◦ Port: 222

Commands:
◦ ssh gbcs3.cc.gettysburg.edu –p 222 –l user
◦ ssh [email protected]:222
Hello World Diff (Python File)
Open gedit
 Type…
print("Hello World")
 Save file as helloworld.py

Hello World Diff (Java File)


Open drjava
Type…
public class HelloWorld
{
public static void main(String[] args)
{
System.out.println("Hello World");
}
}

Save file as HelloWorld.java
Testing Diff

Run the following in the terminal..
python helloworld.py > helloworld_out.txt
java HelloWorld > HelloWorld_out.txt
diff helloworld_out.txt HelloWorld_out.txt

This will test to see if each programs output
is the same