JDK Installation in Linux

JDK Installation in Linux

Download JDK rpm from below link:

http://www.oracle.com/technetwork/java/javasebusiness/downloads/java-archive-downloads-javase6-419409.html#jdk-6u43-oth-JPR

Steps:

1. Copy jdk-6u43-linux-rpm.bin to softwares folder under opt
2. Provide required permissions on that file chmod 775 jdk-6u43-linux-rpm.bin using root
3. Run ./jdk-6u43-linux-rpm.bin

4. Press Enter

5. By default java will be installed under /usr/java
6. To check java version use java –version
7. To change java version to present version do following steps
1. Provide required permission on /opt/oracle folder
2. Copy java to required folder using cp -R /usr/java /opt/oracle/

3. Run following steps
1. echo 'export JAVA_HOME=/opt/oracle/java/jdk1.6.0_43' > /etc/profile.d/jdk.sh
2. echo 'export PATH=$JAVA_HOME/bin:$PATH' >> /etc/profile.d/jdk.sh
3. source /etc/profile.d/jdk.sh
4. java –version