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

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9 views

Java applets won't run even after instaling oracle jdk

I am new to ubuntu. I am using it since last month. I tried to install oracle-jdk (which includes jre) so that I can run java applets. I strictly followed the "Manual Install" process written on the ...
0
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1answer
19 views

Error while installing Android Studio, no JDK found

Tried other guides, no luck. Please assist Got the following error No JDK found. Please validate either STUDIO_JDK, JDK_HOME or JAVA_HOME environment variable points to valid JDK installation. ...
0
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0answers
3 views

Installation error with Java (JDK 7) [duplicate]

I was trying to install JDK7, got everything done, download completed, but then I got faced with this error: Download done. Removing outdated cached downloads... sha256sum mismatch ...
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0answers
8 views

Gradle sync failed: cannot detect java version

Im running ubuntu 14.04.3 I installed android studio using: sudo apt-add-repository ppa:paolorotolo/adroid-studio and installed the oracle jdk 8 using: sudo apt-get install ...
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0answers
10 views

java on xfce4 (package has no installation canadate!?)

So i wanted to get minecraft on my chromebook but i need java for that so i go to my terminal and type: sudo apt-get install sun-java6-jdk...and it says: package 'sun-java6-jdk' has no ...
0
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1answer
26 views

Java 7 reporting not installed?

Okay, so I am trying to build an Android ROM, but the following error returns; ************************************************************ You are attempting to build with the incorrect version of ...
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0answers
19 views

Unable to run Java in Ubuntu 14.04 using alien with .rpm file [duplicate]

I have installed jre1.8 and jdk1.8, using alien with .rpm extensions. Both are in /usr/java. But when i use java -version or javac -version command. it displays The program 'javac' can be found in ...
0
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1answer
47 views

How to Install a version 7 update 76 of java in Ubuntu?

I installed the jdk7u80 the oracle and I wonder what I should do to completely remove it and install the jdk7u76 the oracle? $ java -version java version "1.7.0_80" Java(TM) SE Runtime Environment ...
0
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1answer
34 views

Kubuntu 14.04 - Can Oracle JDK 8 (for later use with NetBeans 8) be installed along with currently installed OpenJDK6 & 7?

I'm not facing an actual issue yet, rather trying to avoid any... Currently, these packages are installed on my PC (automatically installed during a fresh install of Kubuntu 14.04): $ apt list ...
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0answers
45 views

Ubuntu 14.04 crashes when running a project in Netbeans 8.0.2

There is one more topic with similar question, however all the suggested solutions there, didn't work for me. I'm using Netbeans 8.0.2. When I try to run a project, the whole system crashes. dpkg ...
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1answer
49 views

cant run java control panel in oracle jdk1.8.0_51

I have download jdk1.8.0_51 as oracle documentation and place it where in .java directory . now i want to open java conrol panel but unable to do . what should I do to open it. So I can enable java ...
1
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1answer
66 views

How can I Install Java JDK7, apache tomcat , eclipse , spring tool suite in my ubuntu 14.04?

could anyone tell me how to install Java JDK7 , apache tomcat , eclipse , spring tool suite in my ubuntu 14.04 ? Provide proper steps .
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1answer
140 views

how to activate Java 8u51 plugin on Firefox?

Can you please advise. I tried to install Java 8u51 plugin. But I'm not able to activate it. Please see below what I get in terminal: $ java -version bash: /usr/bin/java: cannot execute ...
0
votes
1answer
49 views

Oracle JDK 8 is NOT installed

Recently I installed jdk1.8.0_51 on my Xubuntu OS, and now I need to install ant for pyhton-for-android package, but after running the following command : sudo apt-get install ant I get the ...
1
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0answers
28 views

Is there any problem with OpenJDK on Minecraft?

Mojang recommends using Oracle's JRE, but I see people using OpenJDK all the time. What are the advantages and disadvantages to using one or the other on Ubuntu, either in general or specifically as ...
1
vote
1answer
24 views

Unable to copy downloaded java from oracle web site to local?

I have downloaded java 1.8.0 to copy from downloads to /usr/local. And it does not get copied. What is the reason? as I m following this. And i am stuck at when it said "next, i copied this to local ...
1
vote
1answer
47 views

JRE Unmet dependencies, already have oracle JDK

I've installed a .deb package (which requires jre and I already have Oracle JDK) using the command sudo dpkg -i packagename.deb The app runs successfully, but there is an error message at the ...
0
votes
1answer
222 views

Can not install java jdk 8

I've installed ubunut 15.04 recently and I've tried to install java JDK 8 but I can not, and I don't know why. I have fallow all that commands: sudo apt-get install python-software-properties sudo ...
2
votes
3answers
312 views

How to update jdk 7?

I am using ubuntu 14.04 version, 64 bit. when I give java -version in terminal, I get : java version "1.7.0_65" OpenJDK Runtime Environment (IcedTea 2.5.3) (7u71-2.5.3-0ubuntu0.14.04.1) OpenJDK ...
0
votes
2answers
476 views

OpenJDK vs. Oracle JDK for Android Studio

When I run Android Studio with OpenJDK installed I get a warning recommending the use of Oracle JDK. Is Oracle JDK actually better or is it fine to just stick with OpenJDK? Installing Oracle JDK seems ...
1
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0answers
36 views

Broken Packages Issue while installing JDK on Ubuntu 14.04

I am having issues while trying to install JDK on Ubuntu 14.04. Following is what I see: araj1@araj:~$ sudo apt-get install openjdk-6-jre Reading package lists... Done Building dependency tree ...
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1answer
35 views

How to backup Exception Site List in Java Control Panel?

I'm backing up my laptop before formatting and re-installing it. I would like to back up the "Exception Site List" in the Java Control Panel so I will not have to re-insert all sites again. The ...
0
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0answers
180 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 ...
0
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0answers
23 views

Policy tool always wants to open!! Halp

When I was still using 14.04(a couple weeks ago this started), Minecraft just decided, hey, why don't I just use policy tool to open myself and hide everything else related to OpenJDK! So I can't find ...
1
vote
1answer
514 views

bash: /usr/bin/java: No such file or directory

i have installed jdk1.8.0 manually from the oracle website. i have followed the steps written in this website. At last when i executed java -version command i got this result:- bash: /usr/bin/java: ...
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0answers
95 views

Minecraft keeps crashing on every version of Java Runtime

I've tried running Minecraft with Java and it wouldn't open, I tried with 7 and 8 but both would crash every time I tried playing, what can I do at this point?
1
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1answer
214 views

64-bit java not working

I feel like this should just naturally work, but for some reason it isn't. I've gone through the following guide How can I install Sun/Oracle's proprietary Java JDK 6/7/8 or JRE? And it seems that ...
0
votes
1answer
286 views

Specifying JDK in eclipse.ini not being used

I've got multiple JDKs on my system (14.04 LTS), JDK 6, 7, 8 - all Oracle. The JDK 8 is the one picked for update-alternatives. However, the Java project I'm working on requires JDK 7. I've got a ...
0
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1answer
326 views

Octave jdk and ubuntu 15.04

i need to install I/O package so i need to install jdk and set the path java home as seen here ...
2
votes
1answer
250 views

Ubuntu DPKG error

E: The package jdk1.8.0-45 needs to be reinstalled, but I can't find an archive for it. Above is the message i get while trying to run the upgrade command in Ubuntu as follows : sudo-apt-get ...
0
votes
1answer
2k views

How to path set in Ubuntu 15.04 of Java , download the version of java-8-oracle?

I am new to Ubuntu. Recently we changed my OS to Ubuntu 15.04. I am installed java-7-openjdk-i386 from "Ubuntu Software Center" and when I use the "Android Studio" then it highly recommended me to ...
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2answers
1k 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 ...
0
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0answers
149 views

Installing JDK 32 bit on 64 bit machine through wine

I am trying to install 32 bit JDK through wine but it encounters an error. When installing 64 bit JDK it installs it, but when i search it in the specified folder it isn't showing. Any idea how to ...
0
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0answers
17 views

Having trouble downloading jdk8 in 64 bit ubuntu

The jdk8 file is 165 MB. It takes some half an hour to download,but as soon as the download gets complete, it says download failed. When I click on retry, it gets downloaded immediately with 6.5kb ...
1
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0answers
119 views

Android studio. java.lang.runtime.exeption [closed]

Recently i moved to Ubuntu and i was able to use android studio without any problems then i had to reinstall ubuntu and now when i try to lunch android studio this message pops up Internal error. ...
0
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1answer
253 views

Installing JDK with wine

So I have installed Unity3D with wine and it works but when i try to build it says "Unable to find suitable JDK installation". I have installed JDK and it works with Android Studio. I think the ...
1
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0answers
24 views

Unable to execute java programs on ubuntu 14 studio lite

I recently installed ubuntu 14.04 studio lite 32 bit. I have java apps that I created using netbeans 8/open jdk 1.7. They run fine using the netbeans debugger. However when I create the tar, it can't ...
0
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1answer
165 views

Java install does not work

I am unable to run java after installing it. I'd appreciate troubleshooting help. Info: ⠀Ubuntu 14.04 LTS ⠀Acer Aspire V5 with AMD A4 processor ⠀Used Oracle 64-bit Linux version ...
1
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1answer
166 views

Removing Oracle JDK and re-configuring update-alternatives

Please check the scenario below: sudo update-alternatives --config java There are 5 choices for the alternative java (providing /usr/bin/java). Selection Path ...
1
vote
2answers
360 views

Running into an error while installing Android Studio

So I am working on installing android studio onto Ubuntu 15.04. I followed the guide here at http://android-er.blogspot.com/2014/07/install-oracle-jdk-8-on-ubuntu-1404.html to install the JDK and ...
0
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0answers
14 views

Disable Auto Update JDK 7 Ubuntu 14.04 [duplicate]

I have installed JDK 7 in Ubuntu via following commands sudo apt-get install python-software-properties sudo add-apt-repository ppa:webupd8team/java sudo apt-get update sudo apt-get install ...
0
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0answers
33 views

Big Challenge! Need Help installing an Open-source Software [duplicate]

Hi Ubuntu Community, I am new here and I need a helping hand. I am learning to use an open-source software, but I am having trouble installing it in Ubuntu 14.04 64-bit. The Open Foris Plataform ...
1
vote
2answers
411 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
3answers
254 views

Installing Java 8 and Setting environment variables

I just completly shifted to Ubuntu from Windows 7. I am a java developer and now I need to install Java 8 JDK and JRE. I installed 64 bit ubuntu 14.04.02 and it seems like there are lot of ways to ...
0
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0answers
218 views

Setting JAVA environment variable [duplicate]

I am setting up new Ubunut machine. Stuck on setting up Java environment variable. I have tried all possible way and whatever solution I found here. None of them worked. It is still giving me blank ...
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1answer
413 views

The package jre1.8.0-40 needs to be reinstalled, but I can't find an archive for it

I tried to install JDK using rpm package jdk-8u40-linux-x64.rpm. used command sudo alien -i jdk-8u40-linux-x64.rpm. But i am getting below error. The package jdk1.8.0-40 needs to be reinstalled, but ...
1
vote
0answers
183 views

Connecting to edelivery.oracle.com (edelivery.oracle.com)|23.57.214.140|:443… failed

I am running the following command sudo apt-get install oracle-java7-installer however I am receiving the following error Downloading Oracle Java 7... --2015-03-10 08:13:35-- ...
0
votes
1answer
1k views

How to set new JDK home in NetBeans IDE after Java update (NetBeans IDE refuses to start)

This is a question which will help you through what to once you have realised that after updating your Java version, NetBeans IDE refuses to launch. And even after updating your $PATH variable in your ...
0
votes
1answer
367 views

Android KitKat build on Ubuntu 14.04, Wrong JDK

I am trying to build Android-x86 KitKat branch from android-x86.org on an Ubuntu 14.04 64-bit machine. However, when I run make it doesn't run very long until there is an error which halts ...
0
votes
1answer
2k views

How to uninstall manually installed java? (jdk 8) [duplicate]

I am using Ubuntu 14.04 LTS 64 bit and installed the wrong version of Sun/Oracle's Java JDK (32 bit instead of 64 bit) using the Ask Ubuntu Post I assume I have to uninstall it now. How can I do ...