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

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0
votes
1answer
18 views

getting different version of java in ubuntu

I am getting different version of java when i run java -version and javac -version. for java-version iam getting java -version java version "1.7.0_65" OpenJDK Runtime Environment (IcedTea 2.5.3) ...
0
votes
0answers
24 views

Problems with Eclipse GUI

Sometimes, without any evident pattern, Eclipse fails to render some stuff. I can't give much more information because the problem is difficult to reproduce, even if it appears often, and also even ...
2
votes
2answers
955 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 ...
7
votes
6answers
6k views

What is the difference between the five versions of Java on this page for Ubuntu?

I want to install Java on my computer so that I can develop programs and I came across this page on Java in the Ubuntu community documentation. It says: Java is a technology from Oracle (formerly: ...
0
votes
1answer
22 views

Cannot install java?

Edit: This is Ubuntu 13.04 Before I begin, I've seen this question around, sudo apt-get install openjdk-7-jdk It tells me ... ect .. ect (Failed to fetch) Failed to fetch ...
1
vote
1answer
61 views

can't set up java for R under ubuntu 14.10

Problem: before upgrading, under Ubuntu14.04, I just installed the default JRE and JDK, and R 3.0.2 (the default for that rev of Ubuntu),and sucessfully ran R CMD javareconf. However, since ...
1
vote
2answers
31 views

jar files not working

In terminal when try to run jar file it doesn't launch. I have recently uninstalled open jdk 6 to save some space if that matters. abe@abe-Dimension-8400:~/Desktop$ java -jar Minecraft.jar I use ...
15
votes
3answers
34k views

How to install openjdk-7-jdk on Ubuntu 12.04 without dragging in unrelated GUI and sound packages?

Ubuntu 12.04.2 LTS What's going on here? # apt-get install openjdk-7-jdk Reading package lists... Done Building dependency tree Reading state information... Done The following extra packages will be ...
0
votes
1answer
19 views

Unable to Clean boot disk space

I use a sony vaio and Ubuntu 14.04 LTS. I want to install Windows 7 and whenever I insert a bootable usb drive, Error occurs. It says that 693 MB of boot disk space require. How to clean boot disk ...
0
votes
2answers
45 views

Installing Programs, ie Java 8 jdk [duplicate]

I am trying to migrate from Windows to Linux. Why is so difficult for beginners to install programs to a linux computer. Starting to miss the self extracting executable programs in Windows. I have ...
0
votes
1answer
4k views

How to uninstall JDK

Today I installed Android Studio but when I opened it raised the error: 'tools.jar' seems to be not in Android Studio classpath. Please ensure JAVA_HOME points to JDK rather than JRE. I ...
2
votes
2answers
26k 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 ...
0
votes
1answer
41 views

I can't install openJDK 7 in ubuntu 12.10 (32-bit)

Using Ubuntu Software Center I tried to install OpenJDK 7 but got the following notification. **Package dependencies cannot be resolved** This error could be caused by required additional software ...
0
votes
1answer
47 views

installing jdk8 in ubuntu 12.04

I am completely new to Ubuntu and I want to install jdk8. I downloaded the jdk-8u25linux-x64.tar.gz file from their website, but I wanted to follow a lot youtube videos but somehow I cannot follow ...
0
votes
0answers
19 views

java installation not sucessful on ubuntu 14.04

I tried to install java from terminal but failed to install and got error like dpkg was interrupted, you must manually run 'sudo dpkg --configure -a' to correct the problem.
1
vote
1answer
40 views

SIGBUS error with JRE when using eclipse

I encountered a SIGBUS error when starting up eclipse. There was nothing wrong before this, I've just turned on the laptop and the error appears: $ eclipse # # A fatal error has been detected by the ...
2
votes
1answer
368 views

CrashPlan desktop app suddenly terminated after Splash Screen

CrashPlan desktop app suddenly terminated after Splash Screen This was a fresh CrashPlan install on Ubuntu 14.04 amd64 with Oracle Java 7 JDK. Most of /usr/local/crashplan/log/....log was not ...
2
votes
1answer
12k 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 ...
1
vote
1answer
711 views

Having problem with installing JDK 7 and 8

I wanted to install JDK 7 and 8 on my system and I followed bellow post: http://stackoverflow.com/questions/16263556/installing-java-7-on-ubuntu But now, when I enter the: sudo apt-get install ...
0
votes
2answers
139 views

NetBeans has broken interface with OpenJDK

Sorry for English. Usually (say, at 4/5 of times), when I start NetBeans, interface is partially broken. For example, menu items are appearing and at once disappearing after click; some parts of ...
1
vote
2answers
74 views

Can't figure out how to run eclipse (missing JDK/JRE)

I'm very new to Linux and coding, I'm really interested in learning and really want to contribute to this process here at Ubuntu as soon as possible. I downloaded Eclipse Luna. When I try to run it ...
0
votes
0answers
132 views

Eclipse Luna(4.4.1) can't find the JRE for jdk1.8u25

I recently installed jdk1.8u25. The java codes are working fine in the terminal but in eclipse it is not working. Can anyone give any solutions for this?
13
votes
4answers
25k 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 ...
12
votes
6answers
29k 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 ...
0
votes
1answer
27 views

all command in jdk/bin can not execute

for example i type jmap in terminal, it will show: The program 'jmap' can be found in the following packages: * openjdk-6-jdk * openjdk-7-jdk Try: apt-get install <selected package> ...
0
votes
0answers
50 views

How to set the path to xstream in Ubuntu 14.04

I am using Ubuntu 14.04, and installed my version of jdk using sudo apt-get install openjdk-7-jdk Now I installed xstream 1.4.7, but whenever I compile any java files using the package, I get an ...
19
votes
4answers
33k 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 ...
0
votes
0answers
212 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: $ ...
0
votes
1answer
859 views

Eclipse Kepler crashes on Ubuntu 14.04 when using WindowBuilder

I'm using Ubuntu 14.04 and with a lot of problems I have to face daily with this OS, there is another recent one. Problem: Whenever I try to use Eclipse's WindowBuilder to design SWING GUIs, after a ...
2
votes
1answer
70 views

Do I need to Install jdk?

I realized that my java compiler wasn't up-to-date on my ubuntu 12.04 $ sudo update-alternatives --config javac There are 2 choices for the alternative javac (providing /usr/bin/javac). Selection ...
1
vote
1answer
337 views

Eclipse does not start on 14.04

I recently upgraded to Ubuntu 14.04 and have been trying to install and use Eclipse ever since. I tried using both open JDK as well as Oracle JDK installations(both Java 7 and Java8) and both Eclipse ...
1
vote
2answers
371 views

intellij idea not opening because of jdk/bin/java

I am relatively new to ubuntu. i am using idea intellij from jetbrains for developing applications with gwt and java. Recently i have installed ubuntu 14.04 and everything works fine but idea 13. I ...
4
votes
3answers
7k views

“Oracle JDK 7 Is NOT installed” error?

I'm trying to install JDK7 on ubuntu 12.4. In the first try, the power has gone and the laptop shutdown in the middle of downloading JDK7 using terminal as I was using the next terminal commands ...
0
votes
0answers
43 views

Specifying path to java interpreter while installing Java Wireless Toolkit

I have already installed JDK. I could run java programs through command line as well as through Netbeans IDE. Now I want to install java wireless toolkit. I have downloaded the "*.bin" file from ...
2
votes
1answer
578 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 ...
1
vote
0answers
151 views

use jdk1.8.0_20 which comes with Netbeans also for Aptana

I just installed Netbeans 8 with jdk1.8.0_20. Which is working fine but a little bit slow. So I figured why not try Aptana Studio but Aptana website states that openjdk is not supported. Can I use ...
0
votes
1answer
418 views

how to install java 1.5 jdk in ubuntu

I am getting this error when trying to install java 1.5 jdk sudo apt-get install sun-java5-jdk Reading package lists... Done Building dependency tree Reading state information... Done Package ...
1
vote
1answer
145 views

Installing oracle java versions

I went to the website to download (Java Platform (JDK) 8u20 ), http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html to download ORACLE java for my machine. I was ...
-1
votes
2answers
263 views

Running .jar File using JDK on Ubuntu 14.04 [closed]

I install JDK on my Ubuntu 14.04 so I can use Netbeans and Android studio. I download a .jar file in the internet and I want to run it on my PC. My problem is, I cannot find java to run this file. I ...
1
vote
1answer
886 views

JDK 8 Installation for Ubuntu 14.04 (Android Studio & NetBeans)

I downloaded jdk-8u11-nb-8-linux-i586.sh and installed it in my home folder. Then I install NetBeans, it is successful I think because I can compile my java code using netbeans. Now when I install ...
0
votes
1answer
214 views

Ubuntu 14.04 freezes when running project in netbeans 8 with jdk 7

This question seems to be a duplicate but it's not! I run ubuntu from a live pendrive only and wanted to test a netbeans project for linux. I have installed oracle's jdk 7u67, netbeans 8. When I tried ...
0
votes
0answers
70 views

Unable to share desktop while using Webex

While using WebEx, I am not able to share desktop. An error message shows that "Java is not enabled", but I've installed jdk7.4. I am using Ubuntu 13.10.
0
votes
2answers
3k 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 ...
289
votes
23answers
455k 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 ...
0
votes
0answers
63 views

Update-alternatives creating symlink to directory instead of file

I ran update-alternatives --install /usr/bin/java java /opt/jdk/jdk1.8.0_11/bin/java 100 It is creating symlink named java to /opt/jdk/jdk1.8.0_11/bin/ instead of /opt/jdk/jdk1.8.0_11/bin/java inside ...
2
votes
0answers
269 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 ...
0
votes
1answer
1k views

Eclipse can't find Java after upgrade to 14.04

After upgrade to Ubuntu 14.04 Eclipse 3.8 can't find any installed Java VM. I have the Sun JDK 1.7 and the openJDK7 installed. I have tried modifying the eclipse.ini to point it to one of the ...
0
votes
0answers
15 views

JDK 8 installation from .tar.gz file [duplicate]

I have downloaded jdk-8u11-linux-x64.tar.gz from the oracle website, and I have done gunzip and tar -xf which extracted all the files into a jdk directory(/usr/local/src/jdk1.8.0_11). Now is that it ...
0
votes
2answers
2k views

Switch to Oracle Java JDK in 14.04?

Ubuntu 14.04 comes with OpenJDK after updating from 13.10. $ java -version java version "1.7.0_55" OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1) OpenJDK 64-Bit Server VM ...
2
votes
1answer
206 views

Problem downloading Oracle JDK 7 [duplicate]

I'm using Ubuntu 12.04 LTS. I'm trying to install Oracle JDK 7. When I tried to directly download the jdk-7u51-linux-x64.tar.gz from the official website, the download started and after downloading ...