Transcript Slides

COMP 401
ECLIPSE SETUP
Graduate TA’s: Wade Gobel, Ben Newton
ECLIPSE – ONE TIME SETUP
Mac and Windows have separate setup instructions
 Once we begin using Eclipse, instructions are the
same
 Ask TA’s for help with any problems you encounter.

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WINDOWS USERS – SETTING UP THE
WORKSPACE FOLDERS

Open “My Computer”

Click on “Start” and then “Computer”
Open your “C:” drive
 Create a new folder called “comp401workspace”



Do not include the quotes in the name
Open the “comp401workspace” folder
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Leave the window showing the folder contents open
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WINDOWS USERS – SETTING UP THE
WORKSPACE FOLDERS

From the recitation page of the course website,
download Java and Eclipse onto your desktop


If you are using Internet Explorer


Save the file to your desktop by clicking on the desktop
icon on the left-hand-side of the Save window
If you are using Mozilla Firefox


For all the files, you must right-click and then choose the
“Save link as…” or “Save target as…” option
Download the files to your desktop
Drag the files you save from the desktop to the
“comp401workspace” folder you opened up earlier
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WINDOWS USERS – STARTING ECLIPSE

Unzip your downloaded Eclipse file, go to its
extracted folder, and create a shortcut of the file
“eclipse.exe” onto your desktop


Right-click on eclipse.exe and choose Send to -> Desktop
Double-click on the Eclipse shortcut on your desktop
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MAC USERS – SETTING UP THE WORKSPACE
FOLDERS
Open your “Documents” folder
 Create a new folder called “comp401workspace”



Do not include the quotes in the name
Open “comp401workspace” folder

Leave the window showing the folder contents open
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MAC USERS – SETTING UP THE WORKSPACE
FOLDERS

From the recitation page of the course website,
download Java and Eclipse onto your desktop


If you are using Safari or Mozilla Firefox


For all the files, you must right-click and then choose the
“Save link as…” or “Save target as…” option
Download the files to your desktop
Drag the files you save from the desktop to the
“comp401workspace” folder you opened up earlier
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MAC USERS – STARTING ECLIPSE
Open your “Applications” folder
 Open the “eclipse” folder
 Double-click on eclipse.exe

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SETTING UP THE ECLIPSE WORKSPACE

From this point on, the instructions are the same for
Windows and Mac users
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SETTING UP THE ECLIPSE WORKSPACE

When you first start Eclipse, you may see the
Workspace launcher screen
Browse to the comp401workspace you created
 Click OK

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SETTING UP THE ECLIPSE WORKSPACE

When you first start Eclipse, you may see the
Startup tab

If you do, you can close it using the “x” button for the tab
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SETTING UP THE ECLIPSE WORKSPACE

You should now see something like this
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SETTING UP THE ECLIPSE WORKSPACE

If you already have some other workspace open, you
can switch between workspaces by clicking on “File”
then “Switch Workspace” then “your target
workspace”
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SETTING UP THE COMP401 PROJECT

Create a new Java Project by clicking on “File” then
“New” and then “Java Project”
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SETTING UP THE COMP401 PROJECT
Enter the project name as “Factorial”
 Click Finish

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SETTING UP THE COMP401 PROJECT

You should see something like this (with “Factorial”
instead of “comp401”)
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CREATE A JAVA PACKAGE

On the tool bar, select “File->New->Package” or
click the “New Java Package” icon, create a package
called comp401pkg
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ADDING A NEW CLASS

Right-click on “comp401pkg” then “New” and then
“Class”
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ADDING A NEW CLASS

Call the class “Factorial”
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
Do not change any other settings or enter other
information
Click Finish at the bottom of the window
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ADDING A NEW CLASS
You should see something like this (your project
name and class names will be different)
 Eclipse has already made the class header for you
 You can now write the class body in the edit window
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RUNNING ASAFEARGPRINTER FROM ECLIPSE


Right-click on “Factorial.java” then “Run As…” and
then “Java Application”(or Ctrl+F11)
Make sure
you have
finished the
main method
before
running it.
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SPECIFY ARGUMENTS TO YOUR PROGRAM
(REVIEW)

Right click on your Java file -> Run As -> Run
Configurations -> Arguments
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COMPILING IN ECLIPSE
By default, Eclipse auto-compiles for you so you
never have to
 To turn auto-compile on or off, click on “Project” and
then check or uncheck the “Build Automatically”
option


If it is checked, then auto-compile is on
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DEBUG YOUR PROGRAMS (1)
Debug Perspective
(F11)
Switch Views
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DEBUG YOUR PROGRAMS (2)
• Add a breakpoint by right-clicking in the left ruler
area, and select “Toggle breakpoint”
• Start debug
Check this box.
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DEBUG YOUR PROGRAMS (3)
Step Into(F5) & Step
Over(F6)
Watch
Set breakpoints on the
side bar
Code
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ECLIPSE AND YOU
You have successfully setup Eclipse
 Later we will install the ObjectEditor package
needed for this class
 Feel free to explore Eclipse and use it for your
assignments from now on
 If you have any questions or problems about Eclipse,
feel free to ask the TA’s

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SCREEN CAPTURES
Select the window you want to capture.
 Press Alt-Print Screen (Windows) or Command +
Shift + 4, then Spacebar (Mac)
 An image of the screen is in your copy buffer
 Paste into document for your assignment.
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