use the below commands to install oracle java8 through terminal
Step -1) Visit Oracle JDK download page, look for RPM version
Step -2) Download oracle java 8 using the below command wget --header "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u121-b13/e9e7ea248e2c4826b92b3f075a80e441/jdk-8u121-linux-x64.rpm
Step -3) Install the java8 using below command sudo yum localinstall jdk-8u121-linux-x64.rpm Now the JDK should be installed at /usr/java/jdk1.8.0_121 Step -4) Remove the downloaded .rpm file to utilize the space. rm jdk-8u121-linux-x64.rpm
Step -5) Verify the java by using command java -version
Step -6) If the CentOS has multiple JDK installed, you can use the alternatives command to set the default java sudo alternatives --config java
Step -7)Optional set JAVA_HOME Environment variables. copy the path of jdk install i.e /usr/java/jdk1.8.0_121 use below command to export java home export JAVA_HOME=/usr/java/jdk1.8.0_121 export PATH=$PATH:$JAVA_HOME
On centos 7, I just do
sudo yum install java-sdk
I assume you have most common repo already. Centos just finds the correct SDK with the -devel sufix.
An alternative answer is,
sudo yum list \*java-1\* | grep open
than select one from list and install that
for example,
sudo yum install java-1.7.0-openjdk.x86_64
This is what I did:
First, I downloaded the .tar
file for Java JDK and JRE from the Oracle site.
Extract the .tar
file into the opt folder.
I faced an issue that despite setting my environment variables, JAVA_HOME
and PATH
for Java 9, it was still showing Java 8 as my runtime environment. Hence, I symlinked from the Java 9.0.4 directory to /user/bin
using the ln
command.
I used java -version
command to check which version of java is currently set as my default java runtime environment.
@Sventeck, perfecto.
redhat docs are always a great source - good tutorial that explains how to install JDK via yum and then setting the path can be found here (have fun!) - Install OpenJDK and set $JAVA_HOME path
OpenJDK 6:
yum install java-1.6.0-openjdk-devel
OpenJDK 7:
yum install java-1.7.0-openjdk-devel
To list all available java openjdk-devel packages try:
yum list "java-*-openjdk-devel"
yum install java-1.8.0
and then:
alternatives --config java
and check:
java -version
Here is a detailed information on setting up Java and its paths on CentOS6.
Below steps are for the installation of latest Java version 8:
Now you can test the installation with a sample java program
I have written a shell script to install/uninstall java on centos. You can get it done by just run the shell. The core of this shell is :
1.download the jdk rpm(RedHat Package Manager) package.
2.install java using rpm.
You can see more detail here: https://github.com/daikaixian/WaterShell/tree/master/program_installer
Hope it works for you.
Since Oracle inserted some md5hash in their download links, one cannot automatically assemble a download link for command line.
So I tinkered some nasty bash command line to get the latest jdk download link, download it and directly install via rpm. For all who are interested:
wget -q http://www.oracle.com/technetwork/java/javase/downloads/index.html -O ./index.html && grep -Eoi ']+>' index.html | grep -Eoi '/technetwork/java/javase/downloads/jdk8-downloads-[0-9]+.html' | (head -n 1) | awk '{print "http://www.oracle.com"$1}' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" -O index.html -q && grep -Eoi '"filepath":"[^"]+jdk-8u[0-9]+-linux-x64.rpm"' index.html | grep -Eoi 'http:[^"]+' | xargs wget --no-cookies --header "Cookie: gpw_e24=xxx; oraclelicense=accept-securebackup-cookie;" -q -O ./jdk8.rpm && sudo rpm -i ./jdk8.rpm
The bold part should be replaced by the package of your liking.
If you want the Oracle JDK and are willing not to use yum/rpm, see this answer here:
Downloading Java JDK on Linux via wget is shown license page instead
As per that post, you can automate the download of the tarball using curl and specifying a cookie header.
Then you can put the tarball contents in the right place and add java to your PATH, for example:
curl -v -j -k -L -H "Cookie: oraclelicense=accept-securebackup-cookie" http://download.oracle.com/otn-pub/java/jdk/8u45-b14/jdk-8u45-linux-x64.tar.gz > jdk.tar.gz
tar xzvf jdk.tar.gz
sudo mkdir /usr/local/java
sudo mv jdk1.8.0_45 /usr/local/java/
sudo ln -s /usr/local/java/jdk1.8.0_45 /usr/local/java/jdk
sudo vi /etc/profile.d/java.sh
export PATH="$PATH:/usr/local/java/jdk/bin"
export JAVA_HOME=/usr/local/java/jdk
source /etc/profile.d/java.sh
The following command will return a list of all packages directly related to Java. They will be in the format of java-<version>
.
$ yum search java | grep 'java-'
If there are no available packages, then you may need to download a new repository to search through. I suggest taking a look at Dag Wieers' repo. After downloading it, try the above command again.
You will see at least one version of Java packages available for download. Depending on when you read this, the lastest available version may be different.
java-1.7.0-openjdk.x86_64
The above package alone will only install JRE. To also install javac
and JDK, the following command will do the trick:
$ yum install java-1.7.0-openjdk*
These packages will be installing (as well as their dependencies):
java-1.7.0-openjdk.x86_64
java-1.7.0-openjdk-accessibility.x86_64
java-1.7.0-openjdk-demo.x86_64
java-1.7.0-openjdk-devel.x86_64
java-1.7.0-openjdk-headless.x86_64
java-1.7.0-openjdk-javadoc.noarch
java-1.7.0-openjdk-src.x86_64
To install OpenJDK 8 JRE using yum with non root user, run this command:
sudo yum install java-1.8.0-openjdk
to verify java -version
Source: Stackoverflow.com