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Eclipse for SE101

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Starting Eclipse• Start Eclipse from the command line:

$ eclipse

• You may get the following error:

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Fixing the SWT error

• From the command line, run:

• Ln –s creates a symbolic link $ ln -s /usr/lib/jni/libswt-* ~/.swt/lib/linux/x86_64/

• Ln –s is used to create a symbolic link to the correct libraries in /usr/lib from your home folder

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Starting Eclipse, again• Start Eclipse from the command line:

$ eclipse

• You will be prompted to specify a workspace where your code will be stored.

• For your SE101 assignments, use the ~/se101/git folder you created in your home folder.

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Create a project• Click File – New – Project

• Select Java Project and click Next

• For the project name, type A1-2.171

• If you haven’t already created the bin and src folders, you have Eclipse do it for you under Project Layout

• Click Finish

• Click yes to switch to the Java Perspective

Drexel University Software Engineering Research Grouphttp://serg.cs.drexel.edu

Create a new class• Try creating a test class called

hello.java by right clicking the project in the package explorer and selecting New – Class

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Drexel University Software Engineering Research Grouphttp://serg.cs.drexel.edu

Editing code

• Name the class hello and click finish

• In the editor, paste in our hello.java app

• Save hello.java

• Run hello.java by clicking the green arrow

• The output is in the console at the bottom of the screen

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Editing code

• If I have made a mistake (e.g., I wrote system in lower case), I will get error messages when I run it.

• Eclipse underlines the error and lists it under the problems tab

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Drexel University Software Engineering Research Grouphttp://serg.cs.drexel.edu

Accessing tux off campus• To run Eclipse, you will need an X server

• Included with most Linux / Mac distributions or can be downloaded separately

• From a Linux / Mac terminal, connect to tux

$ ssh -x username@tux.cs.drexel.edu

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Accessing tux off campus

• For Windows, download:

• Putty: http://www.chiark.greenend.org.uk/~sgtatham/putty/download.html

• Putty is an SSH client used to connect to tux

• Xming: http://sourceforge.net/projects/xming/files/Xming/6.9.0.31/Xming-6-9-0-31-setup.exe/download

• Xming is an X server used for Eclipse

Drexel University Software Engineering Research Grouphttp://serg.cs.drexel.edu

Accessing tux off campus

• Start putty and type tux.cs.drexel.edu for the host name

• Under Connection – SSH – X11 check “Enable X11 Forwarding”

• Click Open

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