- #APPLE JAVA UPDATE 1.4 2 PC FOR MAC OS X#
- #APPLE JAVA UPDATE 1.4 2 PC INSTALL#
- #APPLE JAVA UPDATE 1.4 2 PC DOWNLOAD#
#APPLE JAVA UPDATE 1.4 2 PC DOWNLOAD#
Java Runtime Environment version 1.4.2 (required): Download the free J2SE v 1.4.206 JRE for your platform.
Download the DrJava "Current Stable Release" jar from DrJava and run it using (replacing the X's with the appropriate date information): java -jar drjava-stable-XXXXXXXX-XXXX.jar (from the directory you downloaded it to). After 1.4.206, the next version is version. Optional (may or may not be required for DrJava): Change the commands java and javac to point to Java 1.5.0 - under Fedora Core 3, java ended up in /usr/java/jdk1.5.0_01/bin/java and javacin the same directory, so the relevant commands were sudo rm /usr/bin/java and sudo rm /usr/bin/javac, then cd /usr/bin sudo ln -s /usr/java/jdk1.5.0_01/bin/java and finally sudo ln -s /usr/java/jdk1.5.0_01/bin/javac. #APPLE JAVA UPDATE 1.4 2 PC INSTALL#
Download and install the latest JDK from Sun, from the download page (either the self-extracting rpm, or just the self-extracting file, after accpeting the license agreement).
#APPLE JAVA UPDATE 1.4 2 PC FOR MAC OS X#
Remove the link CurrentJDK which points to 1.4.2 and replace it with a link pointing to 1.5.0 with these two commands (you will need an administrator password): sudo rm CurrentJDK and then sudo ln -s 1.5.0 CurrentJDK. As for Leopard, Java for Mac OS X 10.5 Update 8 does much the same thing, update J2SE 5.0 to 1.5.026 as well as updating Java SE 6 to 1.6.022 for 64-bit-capable Intel Macs. Change your working directory to the Java Versions directory: type cd /System/Library/Frameworks/amework/Versions at the prompt and hit return. If the output is something like java version "1.5.0_VV", you're all set. To check if you need to change anything, type java -verison and hit return. Open Terminal, which is in Applications, in Utilities (cmd-shift-U), which brings you the Unix command line. The Java 1.5 java and javac command-line tools may not be immediately accessible they are in /System/Library/Frameworks/amework/Versions/1.5.0/Commands (/usr/bin/java is a link). Optional: If you want to compile from the command line (which is not needed for the intro courses):. Add this action to step 3: Select J2SE 5.0 from the drop-down menu under "Java Applet Runtime Settings". Follow the directions above to ensure that your Mac has Java 1.5. 
Optional: If you use Safari and Java 1.5 applets are not displaying:.In the "Java Application Runtime Settings Pane" drag J2SE 5.0 to the top of the list. Open the Java Preferences application in J2SE 5.0.If the J2SE 5.0 directory is missing, Download the latest Java 1.5.0 from Apple and install it.Look for the Java Preferences app on your Mac in Applications > Utilities > Java > J2SE 5.0 (cmd-shift-U opens Utilities).Depending on the age of your MAC, you may have Java 5 or 6 ("JDK 6.0_x"), either of which is fine.If it says something like "javac 1.5.x" or "JDK 5.0.x" or (where x is any number) you're done! Look under the compiler tab at the bottom right and check the version. Download the DrJava "Current Stable Release" MacOS X app from and put the application in your Applications folder.
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