Questions relating to the installing and use of the Java Development Kit (jdk)

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424
votes
25answers
687k 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 ...
251
votes
0answers
338k 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/?
95
votes
10answers
242k 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?
18
votes
3answers
77k views

How to remove Oracle JDK

I didn't find article any related articles 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 ...
23
votes
9answers
73k 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 ...
16
votes
2answers
18k 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 ...
14
votes
3answers
33k 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 ...
2
votes
1answer
7k views

How do I get ORACLE JAVA SE 7 to work?

I am a newbie to Ubuntu, so kindly be considerate. I recently manually downloaded & installed (Java SE 7ux) JavaSE 1.7.0_51. Linux x64 (for 64-bit system) "tar.gz" package. My Ubuntu version is ...
22
votes
4answers
96k 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 ...
43
votes
4answers
185k 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 ...
41
votes
8answers
86k 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 ...
4
votes
4answers
10k 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: ...
3
votes
3answers
59k 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 ...
9
votes
3answers
21k 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 ...
5
votes
2answers
12k views

Android Studo showing :“OpenJDK shows intermittent performance and UI issues.”

I have recently installed Android Studio on my Ubuntu 12.10 64bit machine, but every time that I opened it kept giving the following error "OpenJDK shows intermittent performance and UI issues. We ...
3
votes
1answer
1k views

Download failed : Oracle JDK 7 is NOT installed

When i try to install something it gives me this error: HTTP request sent, awaiting response... 403 Forbidden 2014-04-23 09:32:53 ERROR 403: Forbidden. download failed Oracle JDK 7 is ...
2
votes
1answer
3k 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.
0
votes
2answers
310 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 ...
4
votes
4answers
19k 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: ...
2
votes
2answers
4k 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 ...
0
votes
1answer
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 ...
43
votes
3answers
87k 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 ...
6
votes
2answers
10k 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 ...
4
votes
1answer
490 views

Pointer position way off in Java Application menu's when using gnome-shell

When using any java application in gnome-shell if the window is maximised the pointer position is way off; but only on the menu's, in the editor, or the side panel, the pointer is fine. This only ...
25
votes
5answers
109k 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 ...
12
votes
1answer
56k 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 ...
5
votes
3answers
1k views

How do I install the Sun Java Development Kit (JDK 7)?

How to install JDK 7 on Ubuntu? The installation should be with the tar archive. I know the basic installation with the bin, but how to do with only a tar archive?
3
votes
2answers
6k 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 ...
3
votes
2answers
16k views

update-alternatives: error: no alternatives for

I tried to follow the excellent answer to the question How to correctly remove OpenJDK and JRE and set the system use only and only Sun JDK and JRE?, but there seem to be some side effects: ...
2
votes
0answers
454 views

Unable to start topcoder arena in Ubuntu 14.04

When I want to clear cache using javaws - viewer these error comes. I am trying to launch my topcoder arena. Picked up JAVA_TOOL_OPTIONS: -javaagent:/usr/share/java/jayatanaag.jar Exception in ...
2
votes
2answers
392 views

search command for packages in Ubuntu terminal to search updates and patches of the package specifically

Can I know what is the command to search any package using the terminal, if I only know the name of the Software like, if I want to search VLC or JDK,JRE.. etc If I do not know what is the url where ...
2
votes
2answers
2k views

Not recognize JDK after installation in ubuntu 12.10

I did these steps without error: JDK path : Downloads/jdk-6u37-linux-x64.bin Commands in Terminal : mkdir Programs cd Programs bash ../Downloads/jdk-6u37-linux-x64.bin ...
7
votes
2answers
7k 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 ...
3
votes
0answers
10k views

How to properly set up Sun's JDK? [duplicate]

Possible Duplicate: How do I install Oracle's JDK 6? I'm trying to manually install the Sun JDK package (I have my reasons, don't bother asking why). I've successfully extracted the ...
2
votes
1answer
2k views

Javafx is not on the default classpath even with Oracle JDK 1.8

I recently installed Oracle JDK 1.8 on my Kubuntu Linux machine following this guide. I did the manual install because I couldn't get the easy one to work. If I've understood correctly, javafx should ...
2
votes
1answer
5k views

How can I remove my current JDK and install default JDK? [duplicate]

I have Ubuntu 12.10 x64 installed on a virtual device (VMware workstation) on a host system Windows 8. I downloaded android source code. I wanted to build it, and it says: Checking build tools ...
2
votes
0answers
263 views

Script not working through Cron - JDK version mismatch between shell and script

I am executing a script through cron using the below command: */10 * * * * cd /nas/app/someFolder/psox; ./RunPSOX.sh >> /tmp/trial.log 2>&1 This is being executed by root user. All ...
2
votes
2answers
26k views

Eclipse can't find JDK 7

I've got Oracle JDK 7 installed javac -version yields javac 1.7.0 and the JRE is installed and enabled in Eclipse > Preferences > Installed JREs (As location: /usr/lib/jvm/jdk1.7.0) But trying to ...
1
vote
1answer
2k views

Problems installing Oracle java 1.8

I'm running Ubuntu 14.04. I'm trying to install Oracle java 8. I downloaded the .rpm file published by Oracle: jdk-8u20-linux-x64.rpm and then ran the following commands trying to install it: $ ...
1
vote
1answer
1k views

How to intall Oracle JDK 32bit on Ubuntu 12.04 64bit along side the 64bit oracle jdk

I'm trying to transfer to 64 bit Ubuntu 12.04 from 32 bit Ubuntu 12.04. ADT for eclipse and the Android SDK requires 32bit Java but I would like to keep the 64 bit Java that I just got installed to ...
0
votes
2answers
4k views

How can I uninstall my current java and install sun java 1.6

I installed jdk using the following command: sudo apt-get install default-jdk but it is the wrong version. I need Java SE 1.6 for building Android. When I try building Android, I get a ...