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I have Oracle JDK and JRE 1.5 installed ubuntu LTS. I want to keep JDK 1.5 and install Oracle JRE as 1.6. please let me know the steps or any clear source where I can get this done
A nice way to do this is by using the webupd8 PPA
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java6-installer
To switch which version is used when you type java (or javac etc..) use sudo update-alternatives --config java (or javac of course)
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On my development server I am not able to install specific version (172) of openjdk 8.
I tried to install using aptitude but not able to install it.
sudo apt install openjdk-8-jre-headless=8u172-b01-2
Reading package lists... Done
Building dependency tree
Reading state information... Done
E: Version '8u172-b01-2' for 'openjdk-8-jre-headless' was not found
Use aptitude while installing
sudo aptitude install openjdk-8-jre-headless=8u172-b01-2
It was already asked, check install exact version of openjdk on AskUbuntu.
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I'm trying to install java 9 on ubuntu 16.04, using the webupd8team repo. I've installed java 8 already on the same machine. Running the following commands
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java9-installer
leads to a 404 error for the last command:
Using wget settings from /var/cache/oracle-jdk9-installer/wgetrc
Downloading Oracle Java 9...
--2017-09-23 17:53:43-- http://download.java.net/java/jdk9/archive/181/binaries/jdk-9+181_linux-x64_bin.tar.gz
Auflösen des Hostnamen »download.java.net (download.java.net)«... 2.20.250.112, 2.20.250.104
Verbindungsaufbau zu download.java.net (download.java.net)|2.20.250.112|:80... verbunden. ### connected
HTTP-Anforderung gesendet, warte auf Antwort... 404 Not Found
2017-09-23 17:53:44 FEHLER 404: Not Found. ### 404
download failed
Oracle JDK 9 is NOT installed.
Is there a way to change the url, or doesn't the webupd8team's repo work anymore?
java.net site is closed now and web-upd8 repository cannot get JDK sources from there.
I suggest you to download JDK 9 from Oracle site and install it manually according to installation instructions
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I have installed Java 1.8.0_20 & I can't uninstall it. I have no Java folder in my Library so any other walkthroughs have been useless & every time I switch the preferred order it just sets back to normal as soon as I close Java preferences. I need like a terminal command or folder to go to manually delete it.
Yeah this is due to the fact that Oracle took no care now that they are owners of the Mac version (since 1.6). This is covered here.
Try these terminal commands:
sudo rm -rf /Library/Java/JavaVirtualMachines/jdk<version>.jdk
sudo rm -rf /Library/PreferencePanes/JavaControlPanel.prefPane
sudo rm -rf /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
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I want to start programming in java and i am using ubuntu 14.04, i downlaoaed
jdk-8u20-linux-x64.tar.gz
and in oracle website there is a command to install it, it is the command
% tar zxvf jdk-8uversion-linux-x64.tar.gz
in terminal i got this
bash: fg: %: no such job
anyone help me to intall the JDK.
Add the webupd8 ppa, and install from that -
sudo add-apt-repository ppa:webupd8team/java
sudo apt-get update
sudo apt-get install oracle-java8-installer
Then
java -version
should show you using Oracle Java 8. If not, or if you want to use a different version - run update-java-alternatives with something like,
sudo update-java-alternatives -s java-8-oracle
or
sudo update-java-alternatives -s java-7-oracle
As appropriate.
Debian way (whereas Ubuntu is Debian-baseD) of doing it is through packages.
So it is highly preferred to make a deb package.
Here is how:
sudo apt-get install java-package
make-jpkg jdk-8u20-linux-x64.tar.gz
sudo dpkg -i oracle-java8-jdk_8u20_amd64.deb
Maybe there is already some PPA already doing it for you, but better trust no-one and do it for yourself ;-)
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I'm trying to install JRE on Ubuntu 13.10. I followed this guide. When I run "java -version" it says "command not found"...
This is the result of "sudo find / -name java"
/var/lib/dpkg/alternatives/java
/usr/lib/jvm/java-7-oracle/bin/java
/usr/lib/jvm/java-7-oracle/jre/bin/java
/usr/lib/ure/share/java
/usr/local/java
/usr/local/java/jre1.7.0_51/bin/java
/usr/bin/java
/usr/java
Basically command not found happens when you didn't set up the PATH of installed java.
This guide here covers more about how to install java on a ubuntu machine completely, but here I'm just going to present how to setup your java runnable:
sudo update-alternatives --install "/usr/bin/java" "java" "/usr/local/java/jre1.7.0_51/bin/java" 1
sudo chmod a+x /usr/bin/java
and then
sudo update-alternatives --config java
Choose the one that has /usr/local/java/jre1.7.0_51/bin/java in the options.
You need to set your Java bin full path /jre1.7.0_51/bin to the PATH variable in your Shell window.
Like this
export PATH:$PATH:/jre1.7.0_51/bin
You can check the existing PATH by typing echo $PATH in your Shell window.