Questions tagged [jdk]
Questions relating to the installing and use of the Java Development Kit (jdk)
91
questions
577
votes
28
answers
923k
views
How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE?
I want to install Oracle's JRE and to update to the latest version with the Software Updater when they released. Is there a Ubuntu package that is provided by Canonical or Oracle?
Before release Java ...
- 10.2k
249
votes
0
answers
339k
views
How do I install Oracle Java JDK 7? [duplicate]
If I downloaded the latest JDK from Oracle, do I just download the .tar file and extract it to /usr/lib/jvm/?
- 2,501
107
votes
10
answers
319k
views
How do I install Oracle JDK 6? [duplicate]
Most of the software is not thoroughly tested with Java 7 and I would like to install Oracle's JDK 6.0 on Ubuntu 11.10.
Could someone please provide me the instructions for the same?
- 4,249
7
votes
2
answers
14k
views
Cannot install Oracle JDK via apt in Ubuntu 16.04
I created a new Ubuntu 16.04.3 VM and am attempting to install JDK 9. Unfortunately, the latest version of the JDK apt installer, 9.0.1-1~webupd8~0, is failing to download the binaries and I suspect ...
- 173
184
votes
6
answers
592k
views
Switch between multiple java versions
While installing Android Studio on Ubuntu 14.04 I get the message that my Java version (javac 1.7.0_79) is causing problems. I found a solution of how to install a newer Oracle version of Java:
sudo ...
- 3,118
35
votes
3
answers
186k
views
How to remove Oracle JDK
I didn't find any related articles about How to remove Oracle JDK. There are some related articles but they didn't solve the problem.
I installed Oracle JDK tarball file from Oracle site by following ...
- 780
71
votes
14
answers
210k
views
How do I make java default to a manually installed JRE/JDK?
I have Ubuntu 12.04 amd64 installed on my machine, on the previous versions of Ubuntu it was deadly easy, now there is this command update-java-alternatives with a really bad man page.
I just have my ...
- 2,851
24
votes
5
answers
91k
views
JavaFX missing, Ubuntu 18.04
I have Java 8 and Ubuntu 18.04. I'm using NetBeans and when tried to make some program, it couldn't be done because JavaFX is missing.
I installed Java JDK with NetBeans from Oracle's site and ...
- 915
17
votes
4
answers
19k
views
Can't install Oracle JDK 9
I uninstalled jdk packages and now can't install them back. I managed to install oracle-java7-installer and oracle-java8-installer but can't install oracle-java9-installer. It seems that my computer ...
- 175
6
votes
3
answers
16k
views
Update to latest version of java after ppa is discontinued
I have been trying to install the latest version of java-8. However, I found out that the PPA ppa:webupd8team/java has been discontinued due to changes in the java licence.
How should I update my ...
- 183
41
votes
6
answers
209k
views
Setup and install IntelliJ with JDK
Is there any scripts for downloading and installing IntelliJ with JavaJDK or OpenJDK?
I don't know how I did it before using Ubuntu 12.10 but I'm now on a fresh 13.04 install and I have been looking ...
- 2,592
18
votes
2
answers
36k
views
Changing JVM in Java
I only recently discovered the different JVM's on the wiki page and thought I'd start tinkering. Its been difficult to find documentation on how to configure Java on Ubuntu though.
Lets say I wanted ...
- 2,307
30
votes
3
answers
86k
views
How can I install OpenJDK on Ubuntu 16.04? [duplicate]
Since I upgraded to the latest version of Ubuntu, I cannot install the Java OpenJDK package needed to compile Android custom ROMs. When I run sudo apt-get install openjdk-7-jdk, the following error ...
- 335
22
votes
3
answers
69k
views
"No such file or directory" when invoking java
I'm trying to re-install Oracle JDK 7 32 bit to 64 bit Ubuntu (previously 64 bit JDK was installed). JDK is currently present at /usr/lib/jvm/jdk1.7.0. I invoke
sudo update-alternatives --remove "...
- 842
85
votes
4
answers
200k
views
Setting JDK 7 as default
four@twenty:~$ file /etc/alternatives/java /etc/alternatives/javac
/etc/alternatives/java:symbolic link to `/usr/lib/jvm/java-7-openjdk-amd64/jre/bin/java'
/etc/alternatives/javac:symbolic link to `/...
- 969
32
votes
4
answers
101k
views
netbeans not all requested modules can be enabled
I know this question has already been posted, but the solutions provided don't work for me.
I added the webupd8team/java repository and installed oracle-java8-installer and oracle-java8-set-default.
I ...
13
votes
3
answers
67k
views
How can i install jdk7 on ubuntu 18.04 lts 64bit? [duplicate]
I upgrade my system to ubuntu 18.04 lts, but I work on projects that require JDK 7.
How can i install jdk7 on ubuntu 18.04 lts 64bit?
- 633
5
votes
5
answers
20k
views
Install JDK in Ubuntu
I am trying to install oracle jdk7 64bit on my computer.
I found this How do I install Oracle Java JDK 7?
It uses update-alternative -install to install the JDK which is new to me.
I used to only ...
- 295
5
votes
3
answers
25k
views
Can't reset my JAVA_HOME to new Open JDK 11 Java installation
OS: UBUNTU 18.04
I had installed Oracle Java 8 earlier. But decided to switch to open JDK 11.
it's successfully installed.
java -version
openjdk version "11.0.2" 2019-01-15
OpenJDK Runtime ...
- 53
104
votes
4
answers
460k
views
How can I tell what version of Java I have installed?
I want to start toying around with java (eventually getting to the point where I can write basic little programs for android or web), but I've managed to have java messed up on my computer (from past ...
- 1,467
24
votes
5
answers
27k
views
How to install the OpenJDK 8 (Ubuntu 19.04)?
Only openjdk-11-jdk and newer seem to be available. Is there any way to install the OpenJDK 8? Preferably without adding a PPA.
- 577
15
votes
3
answers
72k
views
IcedTea plugin for OpenJDK 8
I updated from OpenJDK 7 to 8. I uninstalled 7, which uninstalled the IcedTea plugin as well. I tried to reinstall IcedTea with
sudo apt-get install icedtea-7-plugin
But it doesn't work. When I ...
- 253
10
votes
3
answers
52k
views
How to set JAVA_HOME to point to a JDK installation?
I installed sun-java6-jdk.
I need to find its home directory. JAVA_HOME must point to a JDK installation, not JRE.
- 257
4
votes
3
answers
94k
views
How to setup Java-Home and Path in Ubuntu 12.04
we are new to Ubuntu.Recently we changed my server OS to ubuntu 12.04 from windows 7 . every one have their own login details. one of my college installed Open-Jdk7. I asked him, where you installed ...
- 151
3
votes
1
answer
10k
views
Problems updating Java on Ubuntu 20.04 for Minecraft 1.18
Trying to upgrade Java to the latest version of the Minecraft server (v1.18), I had a bit of a drama because the server was initially running Ubuntu 19.x, so I've converted to 20.04 after finding the ...
- 153
2
votes
1
answer
2k
views
Why Oracle discontinued Oracle Java (JDK) Installer PPA? [closed]
I tried to install OracleJDK 8 using
sudo add-apt-repository ppa:webupd8team/java
But it's not working.
I searched the problem and found that
"The Oracle JDK License has changed for releases ...
- 21
48
votes
9
answers
114k
views
'tools.jar' is not in IDEA classpath
I am a new user of Linux, it has been recommended to me by my friend.
He told me to install software called IntelliJ Idea IDE.
Well I have been following the tutorial. But now when I try to open "...
- 481
47
votes
8
answers
332k
views
How to set the JDK for Android Studio?
I can't compile a default new project for Android 2.1 because(?) the JDK used by Android Studio is JDK 1.7 but it should be JDK 1.6.
To change it I go to File -> Project Structure and try to find the ...
- 18.9k
42
votes
5
answers
95k
views
Specify JDK for tomcat7
I have installed tomcat7 (using apt-get install) and whenever I want to start tomcat7 it says :
* no JDK found - please set JAVA_HOME
I have set JAVA_HOME in my bash.bashrc and also in ~/.bashrc and ...
- 1,707
16
votes
1
answer
10k
views
Ugly/Non Anti-Aliased fonts in Java-Swing Applications
I've recently switched to Ubuntu and I've installed Oracle's Java JDK 8u45 (32 bit) using the webupd8team/java repository.
Everything seems to be working fine except that the Java-Swing applications ...
- 881
9
votes
2
answers
15k
views
Problem with Java while trying to run pycharm-community-4.5
I've just installed pycharm-community-4.5 into my Ubuntu 14.04 (64 bit). After installing I ran the command /opt/pycharm-community-4.5/bin$ ./pycharm.sh to run pycharm but the terminal showed me some ...
9
votes
4
answers
38k
views
How to install JDK8 on Ubuntu 16?
I needed JDK 8 for Bazel. I ran sudo apt-get install openjdk-8* on a freshly built Ubuntu 16.04.02 machine, but after installation update-alternatives --config java show two paths:
/usr/lib/jvm/java-...
- 721
8
votes
1
answer
8k
views
How to "install" multiple Java versions?
How do you have multiple Java versions in Ubuntu 18.04 LTS?
In my Windows, I usually have 3 versions available for development. I do not have them installed in my system but rather, I can switch to ...
user909427
6
votes
4
answers
16k
views
Not all TTF fonts visible from the (Sun) JDK
I wanted to use Monaco.ttf with IntelliJ. Unfortunately it doesn't show up.
I also noticed that the Monaco font doesn't appear in the list of fonts got from awt:
java.awt.GraphicsEnvironment....
- 3,189
4
votes
4
answers
23k
views
How to install JDK and Netbeans?
I have downloaded a .bin file for JDK and am trying to install it. I have used these commands:
chmod +x jdk-6u23-linux-i586.bin
sudo ./jdk-6u23-linux-i586.bin
and got this output:
sudo: ./jdk-6u23-...
- 51
3
votes
1
answer
13k
views
Unable to change execute permissions of .sh file [duplicate]
I'm out with a new problem. I've downloaded a jdk7.sh file. Now I'm unable to change the permission of the file to allow executing the file as a program. I mark the check box and again it disappears.
2
votes
2
answers
6k
views
Setup JDK for android studio
I was setting up android studio and got this
So I followed the answer here and used
sudo update-alternatives --set java /usr/local/java/jdk1.7.0_17/jre/bin/java
sudo update-alternatives --set ...
- 886
1
vote
1
answer
7k
views
Install 32-bit version of Oracle JDK 7 on a 64-bit Ubuntu?
I am using https://askubuntu.com/a/61873/23678 to install the 64-bit version of Oracle JDK 7 under Ubuntu 64-bit. Is there a way to tweak this mechanism to install the 32-bit JDK instead?
If not, how ...
- 1,295
1
vote
1
answer
535
views
failing to install oracle-java7-installer,displaying 'E: Sub-process /usr/bin/dpkg returned an error code (1)'
I was setting up up android-studio referring to this website. While installing oracle-java7-installer, this error is displayed:
sudo apt-get install oracle-java7-installer
[sudo] password for cyan:
...
- 13
1
vote
1
answer
3k
views
Which JDK version is compatible with Netbeans on Ubuntu?
I'm trying to install Netbeans on my Ubuntu. It was successfully installed but was unable to create new projects or new files. I have installed JDK 12 and then I removed it because I found here a ...
- 11
0
votes
1
answer
8k
views
How do I install oracle jdk 7 on ubuntu server 12.04? [duplicate]
Possible Duplicate:
How can I install Sun/Oracle’s proprietary Java 6/7 JRE or JDK?
Folks,
I'm new in ubuntu server. As I understand it, Oracle retired the Operating System Distributor's License ...
0
votes
1
answer
13k
views
JAVAFX_HOME path on ubuntu
So my problem is openjfx and using it on Scala-sbt project. The actual problem is JAVAFX_HOME path.
First of all I have java version 10.0.2 installed on my computer and openjfx (which I take as JavaFX)...
- 1
0
votes
2
answers
658
views
Where to write java programs on ubuntu?
I want on write java programs on ubuntu. I have java on my windows OS and I write programs in Notepad++ and compile and run it in command prompt. I installed java on ubuntu. What should I use to write ...
- 66
84
votes
3
answers
36k
views
How to install JDK sources?
How can I download the source code of Java on my local machine, so I can reference it in an IDE?
- 5,107
23
votes
2
answers
11k
views
java-8-oracle (1.8.0_66) problem with PrintAssembly "Could not load hsdis-amd64.so"
I'm trying to run my programs with -XX:+PrintAssembly options but I always get message like:
Java HotSpot(TM) 64-Bit Server VM warning: PrintAssembly is enabled; turning on DebugNonSafepoints to ...
- 231
18
votes
1
answer
90k
views
how to install java 8 in ubuntu 16.04? [duplicate]
How to install java-JDK 8 & maven in Ubuntu 16.04 without adding any PPA?
- 989
16
votes
2
answers
50k
views
Get error when install Oracle JDK 8 on Ubuntu 18.04 [duplicate]
I am trying install Oracle Java 8 on Ubuntu 18.04 LTS.
$ java --version
Command 'java' not found, but can be installed with:
sudo apt install default-jre
sudo apt install openjdk-11-jre-...
- 463
16
votes
5
answers
35k
views
Error installing oracle-java8-installer from webup8team ppa
Does anyone know how to fix this?
First I did:
sudo add-apt-repository ppa:webupd8team/java
Then I did:
sudo apt-get update
And then:
$ sudo apt-get install oracle-java8-installer
Reading ...
- 161
16
votes
3
answers
51k
views
Netbeans install error: The specified jdk folder does not contain jdk
During installation of Netbeans 7.3 I got this message
the specified jdk folder does not contain jdk
I have openjdk 7 installed on my system using apt-get. I tried to specify the path to /usr/lib/...
- 2,142
15
votes
1
answer
72k
views
"Please ensure you have JAVA_HOME points to JDK rather than JRE" message
I have java installed
aaa@ubuntu:~$ whereis java
java: /usr/bin/java /usr/bin/X11/java /usr/local/java /usr/share/java
aaa@ubuntu:~$ whereis javac
javac: /usr/bin/javac /usr/bin/X11/javac
and etc/...
- 2,632