Java installation on Linux

Download Sun/Oracle Java JDK or JRE from here (current version is JDK 6 Update 45):

http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase6-419409.html#jdk-6u45-oth-JPR.

Note: Select rpm.bin package (example jdk-6u45-linux-i586-rpm.bin, jre-6u45-linux-i586-rpm.bin, jdk-6u45-linux-x64-rpm.bin or jre-6u45-linux-x64-rpm.bin).
Make it executable and run the bin file:

chmod +x /path/to/file/jre-6u45-linux-*-rpm.bin

sh /path/to/binary/jre-6u45-linux-*-rpm.bin

## For Java installation ##

alternatives --install /usr/bin/java java /usr/java/jre1.6.0_45/bin/java 20000

## For Java web start installation##

alternatives --install /usr/bin/javaws javaws /usr/java/jre1.6.0_45/bin/javaws 20000

## For Java Browser (Mozilla) Plugin 32-bit ##

alternatives --install /usr/lib/mozilla/plugins/libjavaplugin.so libjavaplugin.so /usr/java/jre1.6.0_45/lib/i386/libnpjp2.so 20000

## For Java Browser (Mozilla) Plugin 64-bit ##

alternatives --install /usr/lib64/mozilla/plugins/libjavaplugin.so libjavaplugin.so.x86_64 /usr/java/jre1.6.0_45/lib/amd64/libnpjp2.so 20000

To find java version, run:

java -version
java version "1.6.0_45"
Java(TM) SE Runtime Environment (build 1.6.0_45-b04)
Java HotSpot(TM) Server VM (build 20.6-b01, mixed mode)

javac -version
javac 1.6.0_45

javaws
Java(TM) Web Start 1.6.0_45

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