Java™ Application Development on Linux - Dator

174Chapter 6The IBM Developer Kit for Linux, Java 2 Technology EditionExample 6.3 Symlinking jdk to the Sun Java SDK# ln -s j2sdk1.4.1_02 jdk# ls -latotal 16drwxr-xr-x 4 root root 4096 Jul 8 15:51 .drwxr-xr-x 17 root root 4096 Jun 17 10:18 ..drwxr-xr-x 8 root root 4096 May 21 21:09 IBMJava2-141drwxr-xr-x 8 root root 4096 Mar 5 14:44 j2sdk1.4.1_02lrwxrwxrwx 1 root root 14 Jul 7 22:33 jdk -> j2sdk1.4.1_02#Example 6.4 Symlinking jdk to the IBM Java SDK# rm jdk# ln -s IBMJava2-141 jdk# ls -latotal 16drwxr-xr-x 4 root root 4096 Jul 8 15:51 .drwxr-xr-x 17 root root 4096 Jun 17 10:18 ..drwxr-xr-x 8 root root 4096 May 21 21:09 IBMJava2-141drwxr-xr-x 8 root root 4096 Mar 5 14:44 j2sdk1.4.1_02lrwxrwxrwx 1 root root 14 Jul 7 22:33 jdk -> IBMJava2-141#6.3HOW THE IBM JDK DIFFERS FROM THE SUN JDKAfter the last chapter, which was one of the longest in the book, this chaptershould come as something of a relief. It is one of the shortest in the book. Why?Because the IBM Java Software <strong>Development</strong> Kit is practically identical in useto the Sun package. It differs in only a few respects and that is all we will talkabout here.One of the biggest differences is the version of Java available from eachvendor. Sun has the newest versions, as they have been defining what those are.IBM is still releasing the 1.3 versions of Java as Sun begins to release 5.0. Butyou may not want or need the “bleeding edge” of the technology.