Sun Microsystems Java SE JDK
The Java programming language was initially developed by Sun Microsystems. Its Java JDKs are usually available for Linux, Solaris, and Windows. You can download them at http://java.sun.com/javase/downloads.jsp.
Sun offers at least a couple of packaging choices for each version of Java, for each
operating system, and probably offers the best java
command-line switch functionality.
Download the package for your operating system and CPU architecture. On Linux, here's
how we installed it as an RPM package (as the root
user):
#chmod 700 jdk-6u1-linux-amd64-rpm.bin#./jdk-6u1-linux-amd64-rpm.bin[lots of legalese]Do you agree to the above license terms? [yes or no]yesUnpacking... Checksumming... Extracting... UnZipSFX 5.50 of 17 February 2002, by Info-ZIP (Zip-Bugs@lists.wku.edu). inflating: jdk-6u1-linux-amd64.rpm Preparing... ########################################### [100%] 1:jdk ########################################### [100%] Unpacking JAR files... rt.jar... jsse.jar... charsets.jar... tools.jar... localedata.jar... Done.
Once it is installed, set JAVA_HOME and PATH like this:
#JAVA_HOME=/usr/java/jdk1.6.0_01#export JAVA_HOME#PATH=$JAVA_HOME/bin:$PATH#export PATH
Then, check to make sure your java executable points to the JDK you just installed:
# which java
/usr/java/jdk1.6.0_01/bin/javaHere's how the HotSpot JVM identified itself on one of our Linux computers:
$ java -version java version "1.6.0_02" Java(TM) SE Runtime Environment (build 1.6.0_02-b06) ...