I have a Linux box on which Java 1.7 is installed:
#java -version
java version "1.7.0_09-icedtea"
OpenJDK Runtime Environment (rhel-2.3.4.1.el6_3-x86_64)
OpenJDK 64-Bit Server VM (build 23.2-b09, mixed mode)
But for some new tool I need to install the jdk-8u45-linux-x64.tar.gz
So how can I remove old one and install the new one?
To remove OpenJDK (the one you've already installed)
sudo apt-get purge openjdk-\*
Make a new directory for your new JDK
sudo mkdir -p /usr/local/java
Copy the file to the directory (you should be in that file path)
sudo cp -r jdk-8u45-linux-x64.tar.gz /usr/local/java/
Extract the file
sudo tar xvzf jdk-8u45-linux-x64.tar.gz
You should add this to your PATH now. To do that:
a. Open /etc/profile : sudo gedit /etc/profile
b. Scroll down (the end) and add the path where your jdk was installed
JAVA_HOME=/usr/local/java/jdk1.8.0_45
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
Save and exit
Inform your Linux system where your Oracle Java JDK/JRE is located.
a. Notify the system that Oracle Java JRE is available for use
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jdk1.8.0_45/bin/java" 1
b. Notify the system that Oracle Java JDK is available for use
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/local/java/jdk1.8.0_45/bin/javac" 1
c. Notify the system that Oracle Java Web start is available for use
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/local/java/jdk1.8.0_20/bin/javaws" 1
Inform your Linux system that Oracle Java JDK/JRE must be the default Java.
a. Set the java runtime environment for the system
sudo update-alternatives --set java /usr/local/java/jdk1.8.0_45/bin/java
b. Set the javac compiler for the system
sudo update-alternatives --set javac /usr/local/java/jdk1.8.0_45/bin/javac
c. Set Java Web start for the system
sudo update-alternatives --set javaws /usr/local/java/jdk1.8.0_20/bin/javaws
Reload your system wide PATH
source /etc/profile
Check the new version and you're done!
java -version
Just unpack the new Java version, for example into /opt. Then do
export JAVA_HOME=/opt/jdk1.8.0_45
export PATH=$JAVA_HOME/bin:$PATH
Put these exports into the startup files for your shell and you should be set. It is not necessary to uninstall the Java 7 installation.
On Centos/Redhat
First do : rpm -qa|grep jdk
And then : rpm -e <the version which you dont want>
I had java 7 installed on my ubuntu machine and wanted java 8. For that i followed the following steps
purge the older with sudo apt-get purge openjdk-\*
Add repository sudo add-apt-repository ppa:openjdk-r/ppa
Update the packages sudo apt-get update
Install java 8 with sudo apt-get install openjdk-8-jdk
To check list of java versions installed dosudo update-java-alternatives --list
Select default java for java sudo update-alternatives --config java
Select default java for javac sudo update-alternatives --config javac
check with java -version and javac -version to check if update version is installed
I referred following link Install OpenJDK8 on Unbuntu Trusty
Hope this helps!
I went to this article, the final option did it for me:
A final option for you to consider is yum remove libpcap, see how many packages it wants to remove (yum won't actually remove anything until you hit the Y button and press enter), since you may be able to remove these packages and use yum, if it turns out you couldn't after all, you can roll back with yum history undo command (I don't remember in what version of yum this was implemented in yum, so check first if this sub command is available to you). Also, make sure that you got your repositories pointing to the repos which has these files available.
After that I could remove my old jdk with:
sudo rpm -e java-1.8.0-openjdk-1.8.0.352.b08-2.el7_9
Note: This is an old question and the answers reflect the world as it was then. Modern Ubuntu distributions have OpenJDK available which can be installed with
sudo apt install default-jdk
I am trying to install the Java Development Kit (JDK) on Ubuntu Linux distribution, but I am unable to install it.
What are the steps to install it on Ubuntu?
Referring to Ask Ubuntu question How to set JAVA_HOME for OpenJDK?,
How to install Open JDK (Java developement kit) in Ubuntu (Linux)?
Open Terminal from Application Dash or press Ctrl+Alt+T
Update repository:
sudo add-apt-repository ppa:openjdk-r/ppa # only Ubuntu 17.4 and earlier
sudo apt update
Optional: To search available distributions of openjdk, use the following command:
apt search openjdk
Install the appropriate version with the following command:
sudo apt install openjdk-8-jdk
sudo apt install openjdk-8-source #this is optional, the jdk source code
For JAVA_HOME (Environment Variable) type command as shown below, in "Terminal" using your installation path...
export JAVA_HOME=/usr/lib/jvm/java-8-openjdk
(Note: /usr/lib/jvm/java-8-openjdk is symbolically used here just for demostration. You should use your path as per your installation.)
For PATH (Environment Variable) type command as shown below, in Terminal:
export PATH=$PATH:$JAVA_HOME/bin
To check your installation:
java -version
The following used to work before the Oracle Java license changes in early 2019.
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java7-installer
The PPA is discontinued, until the author finds a workaround for the license issues.
You can install Oracle's JDK 1.7 fairly easily too; as an example this is how to install JDK 1.7.0_13;
Download the JDK from Oracle's site. The download to the newest version is always linked from http://java.oracle.com.
As root, do;
cd /usr/local
tar xzf <the file you just downloaded>
As your normal user, add or change these two lines in your ~/.profile to point to the installation;
export JAVA_HOME=/usr/local/jdk1.7.0_13
export PATH=$PATH:$JAVA_HOME/bin
If it's an update, you may also want to remove the old java installation directory in /usr/local.
Log out and in again (or do . ~/.profile), and everything should just work.
The downside with Oracle's JDK is that it won't update with the rest of your system like OpenJDK will, so I'd mostly consider it if you're running programs that require it.
In case you have already downloaded the ZIP file follow these steps.
Run the following command to unzip your file.
tar -xvf ~/Downloads/jdk-7u3-linux-i586.tar.gz
sudo mkdir -p /usr/lib/jvm/jdk1.7.0
sudo mv jdk1.7.0_03/* /usr/lib/jvm/jdk1.7.0/
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/lib/jvm/jdk1.7.0/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.7.0/bin/javac" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/usr/lib/jvm/jdk1.7.0/bin/javaws" 1
After installation is complete, set environment variables as follows.
Edit the system path in file /etc/profile:
sudo gedit /etc/profile
Add the following lines at the end.
JAVA_HOME=/usr/lib/jvm/jdk1.7.0
PATH=$PATH:$HOME/bin:$JAVA_HOME/bin
export JAVA_HOME
export PATH
Source: http://javaandme.com/
Note: WebUpd8 team's PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn't have any Java files. More information can be found on PPA's page on Launchpad. Hence the below method no longer works and exists because of historical reasons.
If you want to install the latest JDK 1.8, use the webupd8team PPA.
Add the repository in your system:
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
You can now install Oracle Java 8 using the following command:
sudo apt-get install oracle-java8-installer
This ppa repository also provides a package to set environment variables automatically. Just type:
sudo apt-get install oracle-java8-set-default
OpenJDK is OK for the most cases, but Oracle JDK can be required for some bank client applications (my case) - I can't use OpenJDK.
I'm surprised that I don't see any answer with the default method (repository without external PPAs) in Ubuntu 12.10+ for Oracle's JDK - I will try to describe it.
Install JavaPackage:
sudo apt-get install java-package
Download Oracle JDK from Oracle downloads page
Make a Debian package from the downloaded .tar.gz archive:
make-jpkg jdk-YOUR_VERSION-linux-PLATFORM.tar.gz
This command will produce a .deb package.
Install the package in your favourite way (for example, sudo dpkg -i oracle-java8-jdk_8u40_amd64.deb)
It's the officially supported way from Debian developers for installing Oracle JDK, and I suppose it's very simple.
Note: WebUpd8 team's PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn't have any Java files. More information can be found on PPA's page on Launchpad. Hence the below method no longer works and exists because of historical reasons.
Installing Java 8 on Ubuntu
First you need to add webupd8team Java PPA repository in your system and install Oracle Java 8 using following set of commands.
$ sudo add-apt-repository ppa:webupd8team/java
$ sudo apt-get update
$ sudo apt-get install oracle-java8-installer
Verify Installed Java Version
After successfully installing Oracle Java using the above steps, verify the installed version using the following command.
$ java -version
java version "1.8.0_77"
Java(TM) SE Runtime Environment (build 1.8.0_77-b03)
Java HotSpot(TM) 64-Bit Server VM (build 25.77-b03, mixed mode)
###Configuring the Java environment
In Webupd8 ppa repository also providing a package to set environment variables, Install this package using following command.
$ sudo apt-get install oracle-java8-set-default
Reference
Simply run:
sudo apt-get install default-jdk
Wiki from Ubuntu website:
For Ubuntu 10.04 LTS, the sun-java6 packages have been dropped from the Multiverse section of the Ubuntu archive. It is recommended that you use openjdk-6 instead.
If you can not switch from the proprietary Sun JDK/JRE to OpenJDK, you can install sun-java6 packages from the Canonical Partner Repository. You can configure your system to use this repository via command-line:
sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin
sudo update-alternatives --config java
For Ubuntu 10.10, the sun-java6 packages have been dropped from the Multiverse section of the Ubuntu archive. It is recommended that you use openjdk-6 instead.
If you can not switch from the proprietary Sun JDK/JRE to OpenJDK, you can install sun-java6 packages from the Canonical Partner Repository. You can configure your system to use this repository via command-line:
sudo add-apt-repository "deb http://archive.canonical.com/ maverick partner"
sudo apt-get update
sudo apt-get install sun-java6-jre sun-java6-plugin
sudo update-alternatives --config java
Installed in ubuntu 18.04
My workaround was,
$ sudo apt update
Install OpenJDK 8:
$ sudo apt install openjdk-8-jdk
Verify the Java installation by running the following command which will print the Java version:
$ java -version
The output should look like this:
Output:
openjdk version "1.8.0_191"
OpenJDK Runtime Environment (build 1.8.0_191-8u191-b12-2ubuntu0.18.04.1-b12)
OpenJDK 64-Bit Server VM (build 25.191-b12, mixed mode)
Using a PPA (Obsolete)
Note: WebUpd8 team's PPA has been discontinued with effective from April 16, 2019. Thus this PPA doesn't have any Java files. More information can be found on PPA's page on Launchpad. Hence the below method no longer works and exists because of historical reasons.
You can use WebUpd8 PPA (this will download the required files from Oracle and install JDK 8):
sudo apt-add-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
Are PPA's safe to add to my system and what are some “red flags” to watch out for?
Also ensure your JAVA_HOME variable has been set to:
/usr/lib/jvm/java-8-oracle
Manual install
The tar.gz provided by Oracle don't have an actual installation process. You just extract those files to a location you want and add them to your path. So the process is the following:
Download a .tar.gz from Oracle (here I will be using jdk-8u20-linux-x64.tar.gz);
Extract it to somewhere;
Move the extracted folder to /usr/lib/jvm. This is not required but it is the place where Java runtime software is installed
sudo mv /path/to/jdk1.8.0_20 /usr/lib/jvm/oracle_jdk8
Create a file /etc/profile.d/oraclejdk.sh with the following content (adapt the paths to reflect the path where you stored your JDK):
export J2SDKDIR=/usr/lib/jvm/oracle_jdk8
export J2REDIR=/usr/lib/jvm/oracle_jdk8/jre
export PATH=$PATH:/usr/lib/jvm/oracle_jdk8/bin:/usr/lib/jvm/oracle_jdk8/db/bin:/usr/lib/jvm/oracle_jdk8/jre/bin
export JAVA_HOME=/usr/lib/jvm/oracle_jdk8
export DERBY_HOME=/usr/lib/jvm/oracle_jdk8/db
Done! Those paths will only be recognized after you logout or restart, so if you want to use them right away run source /etc/profile.d/oraclejdk.sh.
In Ubuntu 18.04, We can install java like a normal package without using an external repository
Just run this command
sudo apt install openjdk-8-jdk
You can use the sudo apt-get install default-jdk terminal command to install the default JDK version.
Before installing Java, type the sudo apt-get update terminal command and then type the install terminal command. You can get more information from here.
Have a look at OpenJDK. It is the standard JVM implementation on Linux.
The best is to install default Java until a specific Java version is not required.
Before this, execute java -version to check if Java is not already installed.
sudo apt-get update
sudo apt-get install default-jre
sudo apt-get install default-jdk
That is everything that is needed to install Java.
I recommend JavaPackage.
It's very simple. You just need to follow the instructions to create a .deb package from the Oracle tar.gz file.
You can install via apt-get:
sudo add-apt-repository ppa:linuxuprising/java
sudo apt-get update
sudo apt-get install oracle-java11-installer
After, do not forget to check the version:
java -version
sun-java6-jdk is a virtual package provided by oracle-java8-installer or oracle-java7-installer or oracle-java7-installer.
sudo apt-get install oracle-java8-installer
will give you sun-java6-jdk.
I have successfully installed JDK 10 on Ubuntu 18.04 LTS following this video.
I am copying the excerpt from the description of the video.
Just open the terminal and give these commands :
For Java Installation (PPA)
sudo add-apt-repository ppa:linuxuprising/java
sudo apt-get update
sudo apt-get install oracle-java10-installer
For setting up environment variables (make java10 default)
sudo apt-get install oracle-java10-set-default
The same procedure can be followed on Ubuntu 16.04, Linux Mint, Debian and other related Linux systems to install JDK 10.
You can use SDKMan,
curl -s "https://get.sdkman.io" | bash
source "~/.sdkman/bin/sdkman-init.sh"
sdk install java
If you want to install Oracle JDK, you can use this automated script that does all the work for you.
There are detailed instructions how to use it on the author's blog.
Installing Oracle's Java JDK requires you to accept the Oracle license before the installation begins. This is only required once. If for some reason you need the installation to be automated, you can run the following commands to install without user interaction, useful for an automatic script for example.
sudo add-apt-repository -y ppa:webupd8team/java
sudo apt-get update
echo debconf shared/accepted-oracle-license-v1-1 select true | sudo debconf-set-selections
echo debconf shared/accepted-oracle-license-v1-1 seen true | sudo debconf-set-selections
sudo apt-get -y install oracle-java8-installer
java -version
Try to use SDKMAN! package manager - https://sdkman.io/install
Now it's the easiest way to install many JVM-based SDKs, tools and frameworks on any Linux distribution.
Upon installation, run the following command to see all available Java distributions:
sdk list java
Select the distribution that you need and install it:
sdk install java <version>
Install the appropriate version of OpenJDK
JAVA_VERSION=8
sudo add-apt-repository -y ppa:openjdk-r/ppa
sudo apt-get update
sudo apt-get -qq install -y openjdk-$JAVA_VERSION-jdk
Set Environment Variables in /etc/profile.d/jdk.sh
JAVA_HOME=/usr/lib/jvm/java-$JAVA_VERSION-openjdk-amd64
echo "export JAVA_HOME=$JAVA_HOME" | sudo tee -a /etc/profile.d/jdk.sh
echo "export J2SDKDIR=$JAVA_HOME" | sudo tee -a /etc/profile.d/jdk.sh
echo "export J2REDIR=$JAVA_HOME/jre" | sudo tee -a /etc/profile.d/jdk.sh
echo "export PATH=$PATH:$JAVA_HOME/bin:$J2REDIR/bin" | sudo tee -a /etc/profile.d/jdk.sh
Check your installation
/bin/bash /etc/profile.d/jdk.sh
java -version
echo $JAVA_HOME
echo $J2REDIR
echo $PATH
Step 01: Download JDK
Download the JDK of required version from oracle official website :
[Oracle website to download JDK]: https://www.oracle.com/in/java/technologies/javase-downloads.html
e.i - jdk-11.0.12_linux-x64_bin.tar.gz
Step 02: Installation:
a) Extract the downloaded files using following command
sudo -tar -vzxf jdk-11.0.12_linux-x64_bin.tar.gz
b) Create a directory of name java inside usr/lib directory
mkdir java
c) Move the extracted jdk-11.0.12 directory inside the new created directory java
sudo mv jdk-11.0.12 /usr/lib/java
Step 03:
a) Execute following commands one by one
sudo update-alternative -install /usr/lib/java java /usr/lib/java/jdk-11.0.12/bin/java 1
sudo update-alternative -install /usr/lib/javac javac /usr/lib/java/jdk-11.0.12/bin/javac 1
Step 04: installation varification :
Verify the installation by using following commands
java --version
javac --version
You can use oraji. It can install/uninstall both JDK or JRE from oracle java (.tar.gz).
To install run sudo oraji '/path/to/the/jdk_or_jre_archive'
To uninstall run oraji -u and confirm the version number.
I had the same problem and none of the comments worked for me. Finally, I noticed that I disabled my updates. When I reactivate it, so sudo apt-get update worked correctly and the issue was solved.
(update in system settings> software and updates>updates tab
here I ticked two first option of important update and recommended updates).
Try this in case you do not want to install OpenJDK: JDK Source Installer for Ubuntu
In Ubuntu1604 I faced "No installation candidate error". Following below steps helped me install.
-sudo apt-get update
-sudo apt-get upgrade
-apt-get install software-properties-common
-sudo add-apt-repository ppa:webupd8team/java
-apt-get update
-sudo apt install oracle-java8-installer
Over Debian you can try
apt-get install default-jdk
I have been trying to install Oracle Java 7 on Ubuntu 11.04. I was following the instructions given here
Once I followed all the steps ( to the letter ), I tried running
java -version
which gave the expected output. But running
javac -version
did not give the expected output. Instead I get the following error:
Error : Could not find libjava.so
Error : Could not find Java SE Runtime Environment
The environment variable PATH contains both /usr/local/java/jre/bin and /usr/local/java/jdk/bin, LD_LIBRARY_PATH points to /usr/local/lib which contains libjava.so which is currently owned by the user who I am running javac as. In addition, JAVA_HOME points to the jdk folder. Inspite of all this, javac is unable to find the libjava.so file. There are multiple solutions online but none seem to work for me. Even a direct run
/usr/locale/java/jdk/bin/javac -version
results in the same error.
Any help is hugely appreciated.
Thanks
Oracle Java 1.7.0 from .deb packages
wget https://raw.github.com/flexiondotorg/oab-java6/master/oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh -7
sudo apt-get update
sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source
sudo apt-get dist-upgrade
Workaround for 1.7.0_51
There is an Issue 123 currently in OAB and a pull request
Here is the patched vesion:
wget https://raw.github.com/ladios/oab-java6/master/oab-java.sh
chmod +x oab-java.sh
sudo ./oab-java.sh -7
sudo apt-get update
sudo sudo apt-get install oracle-java7-jdk oracle-java7-fonts oracle-java7-source
sudo apt-get dist-upgrade
It turns out that maybe the link had some errors. A better link to follow would be this
Hope that helps. The first answer on the page would be sufficient.
I am trying to setup build enviroment for android on my ubunt10.04 machine. For that i want to install sun-java6-jdk as mentioned in source.andoid.com .
$ sudo add-apt-repository "deb http://archive.canonical.com/ lucid partner"
$ sudo apt-get update
$ sudo apt-get install sun-java6-jdk
But now I am getting the error as no package for sun-java6-jdk.
so I want to know how to install suitable jdk for android build set up.
you could install sun jdk for Ubuntu 10.04 in the same way as 10.10. The steps for installing java in 10.10 is described in http://java.dzone.com/articles/sun-java-6-ubuntu-1004-1010
here's the steps of installing sun jdk, taken from that article:
add-apt-repository ppa:sun-java-community-team/sun-java6
apt-get update
apt-get install sun-java6-jdk
update-java-alternatives -s java-6-sun
in case the repository mentioned above not available anymore, here is a manual-ish alternative in installing JDK: http://codingforme.wordpress.com/2012/05/14/installing-oracle-java-jdk-6-or-7-on-ubuntu-12-04/
Sun JDK was dropped from Ubuntu due to licensing nonsense: http://news.softpedia.com/news/Canonical-Will-Remove-Java-From-Ubuntu-241147.shtml . Use openjdk instead.
Although there is a ppa here https://launchpad.net/~sun-java-community-team/+archive/sun-java6 that lets you install the SunJDK, it's very out-of-date and looks abandoned.
Download jdk-6u45-linux-x64.bin from Oracle repository and execute the below code
chmod u+x jdk-6u45-linux-x64.bin
./jdk-6u45-linux-x64.bin
sudo mv jdk1.6.0_45 /opt
sudo update-alternatives --install "/usr/bin/java" "java" "/opt/jdk1.6.0_45/bin/java" 1
sudo update-alternatives --install "/usr/bin/javac" "javac" "/opt/jdk1.6.0_45/bin/javac" 1
sudo update-alternatives --install "/usr/lib/mozilla/plugins/libjavaplugin.so" "mozilla-javaplugin.so" "/opt/jdk1.6.0_45/jre/lib/amd64/libnpjp2.so" 1
sudo update-alternatives --install "/usr/bin/javaws" "javaws" "/opt/jdk1.6.0_45/bin/javaws" 1
MORE ON : http://peesquare.com/blogs/install-sun-java-6-on-ubuntu-10-04-12-04-12-10-13-04-13-10-both-32-bit-and-64-bit-system/
In my case, I'd rather download the required JDK directly from Sun's homepage. Once you download and unzip it, then all you need to do is simply adding an environment variable, JAVA_HOME. That's it. It is very simple and works regardless of ubuntu version.
I need to downgrade Java in Ubuntu. Current version is 1.6.0, I have to use JDK 1.5.0 for my Android platform.
How to do it? Remove it and reinstall?
Late answer but it may help someone out there:
sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu hardy main multiverse"
sudo add-apt-repository "deb http://archive.ubuntu.com/ubuntu hardy-updates main multiverse"
sudo apt-get update
sudo apt-get install sun-java5-jdk
then you can see java5 when you
sudo update-java-alternatives -l
update-java-alternatives is your friend:
$ sudo update-java-alternatives -l
java-1.5.0-sun 53 /usr/lib/jvm/java-1.5.0-sun
java-6-sun 63 /usr/lib/jvm/java-6-sun
Then select the Java version you want. E.g., to seletc Java 1.5, do
$ sudo update-java-alternatives -s java-1.5.0-sun
Make sure first that you have the correct Java packages installed.
See the Ubuntu Java page for more details.
Back in the stone age (2000-2001) on Solaris we'd install both versions side by side (/usr/local or /opt) and have a bash script to change JAVA_HOME to the version we wanted to use. Easy peasy. Just make sure JAVA_HOME is in your PATH and possibly your LD_LIBRARY_PATH.