Part 1: Installing the JDK and jGRASP

To properly install jGRASP, you'll need to download and install both the Java Development Kit (JDK) and jGRASP.

If you are using Mac OS X, the Java Development Kit (JDK) should already be installed, so you can move on to Installing jGRASP. If you are using Windows, read on.

Uninstalling the old version of the JDK

If you previously installed an older version of the JDK, you will need to uninstall this software. Go to Start -> Control Panel -> Add or Remove Programs and click on the version of the JDK you want to uninstall. Click remove. A box will appear, click Yes to continue uninstalling the software. You may then be asked to reboot your computer. Once you have successfully uninstalled the older version of the JDK, proceed with the rest of the instructions.

Installing the JDK

Steps

• In the License Agreement dialog box, click the Accept button.
• In the Custom Setup dialog box, you don't need to make any changes, so just click Next.
• The JDK installation will begin, and you should see a progress bar. The installation may take a few minutes.
• After the JDK finishes installing, the installer will try to install the Java Runtime Environment (JRE). You will see another Custom Setup dialog box, and again, you don't need to make any changes, so just click Next.
• The JRE installation will run much like the JDK installation did.
• When the installation is done, you should see a dialog box that says "Java(TM) SE Development Kit 6 Update 7 Successfully Installed". Click Finish.
• You may be asked to restart your computer.

Installing jGRASP

• Ignore the first part of the chapter where it tells you which file to download (you have already downloaded the appropriate file).
• Use all the default installer settings EXCEPT when you are presented with a dialog box asking you to choose file associations, such as the one shown below. Deselect all file extensions except for .java and .jav.

  

• After clicking the Install button, jGRASP will install and you should see a dialog box that says "Completing the jGRASP Setup Wizard". Click Finish.

When you have completed the installation, you should find the jGRASP icon on your Desktop. In Windows, jGRASP should also be listed in the Start Menu.

Once you have successfully installed the JDK and jGRASP, you can delete jgrasp186_09.exe (or jgrasp186_09.pkg.tar.gz) and jdk-6u7-windows-i586-p.exe from your computer.

Part 2: Starting jGRASP the First Time

• Go to the Settings menu and highlight Compiler Settings. A sub-menu will pop up. Select Workspace. A dialog box will open.
• Choose the Compiler tab at the top of the dialog box.
• In the drop-down box next to "Language:", choose Java.
• Choose the Environment tab under the "Language:" drop-down box.
• Click on "jdk (integrated debugger, HotSpot VM, prefer JDK compiler) - generic" so that it is highlighted.
• Click the Use button to the right of the list.
• 
• Click OK.

Part 3: Your First Java Program

• Create a directory called "COMP110" somewhere on your machine if you have not done so already. For example "C:\COMP110"
• Download (Right-click and Save Target As..) FirstProgram.java to the "COMP110" directory on your machine.
• Open "FirstProgram.java" within jGRASP by using the File -> Open menu to select ""FirstProgram.java"" in your "COMP110" directory.
• Insert your name into the assignment header in "FirstProgram.java"
• Compile "FirstProgram.java" by clicking the Green Plus icon in the menu at the top.
• Run "FirstProgram.java" and experiment a bit by clicking the Red Running Man icon in the menu at the top.

Part 4: Submission

After you have compiled "FirstProgram.java" in Part 3, a file called "FirstProgram.class" will have been created by jGRASP in your "COMP110" directory.

Submit "FirstProgram.java" and "FirstProgram.class" via the UNC Blackboard System before the deadline.

Grading

• [3] Files submitted correctly
• [3] Assignment header edited correctly
• [4] Class file runs and executes correctly