java installation error when i try to find the version

Question

When I try to install Java on my Linux machine I am getting message already installed but I still cannot retrieve java -version. Please help.

[root@localhost Downloads]# rpm -ivh jre-8u31-linux-i586.rpm 
Preparing...                   ###########################################
[100%]  package jre1.8.0_31-1.8.0_31-fcs.i586 is already installed
[root@localhost Downloads]# whereis java
java: /etc/java /usr/lib/java    /usr/share/java 
[root@localhost Downloads]# java-version
bash:    java-version: command not found 
[root@localhost Downloads]# java -version
bash: java: command not found

Thanks in advance!
Kumar

Try `/usr/lib/java -version` - or put the path path to the java executable to your `PATH` variable and run `java -version` again — Trinimon, Feb 03 '15 at 07:33
see https://ask.fedoraproject.org/en/question/49060/how-to-make-oracle-jdk-and-jre-as-default-java-in-fedora-20/ — Farvardin, Feb 03 '15 at 07:38

Andrey E · Answer 1 · 2015-02-03T09:14:03.890

0

You need to set environment variables JAVA_HOME and PATH. You can do this by executing:

export JAVA_HOME=/usr/java/jdk1.5.0_07

export PATH=$PATH:/usr/java/jdk1.5.0_07/bin

You should replace /usr/java/jdk1.5.0_07 with you java installation path.

For more details check the link below: http://www.cyberciti.biz/faq/linux-unix-set-java_home-path-variable/

edited Feb 03 '15 at 09:14

answered Feb 03 '15 at 07:47

Andrey E

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thank you all for your support – keshav nagaraj Feb 03 '15 at 08:37
i can see java -version now but if i type echo $java_HOME i am unable to see the paths still it is blank do you help me to set the path for java home – keshav nagaraj Feb 03 '15 at 08:39
@keshav nagaraj you should export JAVA_HOME environment variable. export JAVA_HOME=path to your java instalation – Andrey E Feb 03 '15 at 08:42
@ Fildor, thanks, you are absolutely right. I will edit the answer. – Andrey E Feb 03 '15 at 09:07

java installation error when i try to find the version

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