The Java Development Kit (JDK) is a set of utilities that allow one to create software systems for the Java platform. It consists of several tools and libraries.

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How can I isolate a JPNLP (web deploy) Java version from other, legacy versions on the computer?

I have a JNLP that runs the following shortcut when installing: C:\Program Files (x86)\Java\jre1.8.0_25\bin\javaws.exe" -localfile ...
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16 views

Switching JRE version

I have JDK 1.8.0_05 64 bit, 1.6.0_45 64 bit and 1.6.0_39 32 bit versions installed on a same machine. I am using this machine for Android app development and it was working fine with Native Android ...
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24 views

How to uninstall Java version 1.4

I would like to asks a question about how to uninstall my old version of java(1.4.2_06) if it is not shown in add/remove in control panel? I'm using windows xp. I already uninstalled all my java that ...
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26 views

Different types of Java updates

I have a machine that lists in its installed programs several versions of Java(TM) 6 update <some_number> and also one Java(TM) SE Runtime Environmet 6 Update 1 and one J2SE Runtime Environment ...
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37 views

Chrome doesn't recognize that I already have Java installed

I've installed the latest JDK which also installs the JRE (1.8.0.25) The paths all seem to be set fine and Eclipse runs just fine. But my browsers do not recognize that Java is installed and want me ...
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1answer
61 views

Debian, shell and jdk 8

I'm trying to download jdk on debian 7 using wget command wget --header "Cookie: oraclelicense=accept-securebackup-cookie" ...
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35 views

JRE 7 VS JDK 7 (The jdk seems to have priority over the jre)

So I installed the JRE 7 for Minecraft and the JDK 7 for programming and when I'm not programming I want to play some craft but it seem's that having both the JDK and JRE conflicts and my Minecraft ...
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129 views

Two versions of java installed in two locations on my mac, which is right?

I am having trouble with java install locations. I am using a mac running 10.9.2 and i have two versions of java installed jdk 1.7.0 & jdk 1.6.0 but both installs are in different locations. jdk ...
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46 views

Slow Windows Application Startup

I have Windows 8 Pro/i5 3320M laptop with 8GB memory. Java based applications such as Eclipse, Phpstorm takes about 15-30 mins to load. (i assume issue is with java apps, others work fine). I tried ...
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Is it safe to delete Java folders from C:\Users\(Username)\AppData\LocalLow\Sun\Java

I am using a Windows 7 64-bit PC. I have many folders in C:\Users\(Username)\AppData\LocalLow\Sun\Java with names of older Java versions like: jdk1.7.0_21_x64 jre1.7.0_45 jre1.7.0_25 These folders ...
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2answers
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64 Bit Windows 8.1 Failure to reinstall Java JDK and JRE

Attempting to update to jre-7u67 from 65 did not appear to work. On reattempting, installation failed with a “Access is denied” message. JDK was still there but I followed recommendations to remove ...
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83 views

Java/JDK filesystem organization on OSX (Mavericks)

If you install the JDK via the Oracle DMG, you get content put under /Library/Java/JavaVirtualMachines/jdk1.7.0_xx/Content/Home/bin as well as ...
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108 views

Java version not recognized when JAVA_HOME defined for a particular USERACCOUNT

I have been struck with problem on my development box. I have JRE6 on my system and NO ADMIN RIGHTS. Used this command to add user variables rundll32 sysdm.cpl,EditEnvironmentVariables I have ...
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1answer
214 views

Install 64-bit JDK versions with Ninite

I'm attempting to build a Nanite installer/updater for my own personal use and I've found it fantastic. However, as part of the profile, I would like to include the installation of multiple versions ...
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483 views

Cannot install JDK on Windows 8

I am struggling to install Oracle's JDK7 on my Windows 8.1. I got the jdk-7u51-windows-x64.exe file from http://www.oracle.com/technetwork/java/javase/downloads/jdk7-downloads-1880260.html as I ...
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31 views

JDK Installation on SUN Sparc

I have system running java 1.5. I am planning to install java 1.6 "too" to another location to run command > java using full path. Copying a jdk 1.6 installation from another machine throws an ...
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2answers
6k views

Error: Could not find or load main class(Java)

I am using java in ubuntu machine. I can run java program from my eclipse. But I have some work that that I have to perform from command prompt. I could compile java program using javac ...
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1answer
101 views

How to Restore Java on Snow Leopard?

I tried to install Java 7 on my Macbook running Snow Leopard following the instruction detailed here: ...
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1answer
2k views

OS X - Eclipse - WindowBuilder -> “Incompatible Java versions”

No matter what I do, Eclipse keeps saying that "Eclipse is running under 1.6, but this Java project has a 1.7 Java compliance level, so WindowBuilder will not be able to load classes from this ...
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78 views

Installing jdk 1.7.0 java -version not working

I have installed java jdk, following the steps as described here but the problem is when i do which jav it gives me the output /usr/bin/java but when i do java -version it says bash: ...
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177 views

Where to find a zipped/tarred JDK 6

Ok, I concede. I have been looking in vain for a zipped and tarred copy of any later version of Oracle's JDK 6 for Solaris SPARC (32-bit), but all I can find is the shell scrip that "installs" it. ...
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48 views

How to update Oracle JDK on Debian

I am planning to install the oracle JDK7 on my Debian Wheezy machine. To do so I am using java-package to install the jdk as a .deb package under Debian, as described here. My question is: Can ...
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107 views

How to set up environmental variable in Ubuntu?

I have never used Ubuntu before. How do I go about setting an environmental variable that points to JDK? I installed it on my Desktop. I typed in "EXPORT JAVA_HOME=~/Desktop/jdk" in the command prompt ...
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Got a laptop from someone with JDK 1.7 installed, but freezing in terminal [closed]

When I type which java in a terminal, I get /usr/local/tools/i386_Darwin/jdk1.7.0_21/bin/java and on typing echo $JAVA_HOME, I get /usr/local/tools/i386_Darwin/jdk1.7.0_21 If I try java -version ...
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115 views

why update-alternatives --config java shows nothing?

I install oracle java JDK.rmp.bin on fedora. And installing by ". /jdk.rmp.bin", JDK is installed under /usr/java/jdk folder. I could compile java files using command "javac" and "java". I could also ...
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250 views

Eclipse Juno can't run any Java project

I use Eclipse Juno - Eclipse IDE for C/C++ Developers , and I can't run any Java project , mean even there is no "Run" option . For example when I right click on the Main class I just see (no ...
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1answer
89 views

JDK 1.6 for OSX

I am trying to use the Java game library Slick2d. However it seems like it's bugged using Java 1.7. I've tried to find it but was unsuccessful. Is it possible to install the 1.6 JDK on Mountain ...
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683 views

How to configure Chromium's Java plugin so it uses an existing JDK in the machine

This exact same question was asked here, but the OP was asking in regard to a Windows system. I am running Linux Mint 14 "Nadia" - KDE (64-bit). The answer @Kalyan Akella provided to that question ...
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478 views

MATLAB not loading- java NoClassDefFoundError

The installation itself was giving an error: java.util.concurrent.ExecutionException: java.lang.RuntimeException: data starting at 0 is in unknown format but when I deselected Aeromodeling toolbox ...
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2answers
6k views

Upgrade to java 1.7 in eclipse on mac

I'm sort of a beginner with eclipse but I want to update the libraries or build path or whatever to java 1.7 from java 1.6 and I can't figure it out. I'm a computer science student at the university ...
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3answers
852 views

Ubuntu 10.10 -bash: java: command not found

I just bought fresh VPS with Ubuntu 10.10. I following this guide http://l2jserver.com/wiki/Setup_Server_-_Ubuntu for creating Lineage2 server, but this doesn't matter. I try to use command java ...
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140 views

Cannot install JavaFX SDK despite having current JDK

I want to install the JavaFX SDK and it keeps telling that it requires the current JDK to be installed, which I definitely have. Why doesn't the installation recognize my JDK? How can I fix this so I ...
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1answer
557 views

How to install oracle jdk7 on debian

I downloaded the binary of tar.gz format from oralce website. I extracted it to /usr/bin/jdk7. How to "install" it and make it the default jdk and jre?
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2answers
288 views

Installing JDK to remote server

I have been trying to install JDK to my online (remote) server. I have never made such installation so kindly help what is an appropriate way to do it. My doamin's hosting is linux. There are ...
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1answer
131 views

install rpm packages with rpm

I tried to install java 1.7 with rpm but got this error: #rpm -i jdk-7-linux-x64.rpm. package jdk-2000:1.7.0-fcs.x86_64 is already installed If the package really was installed, then how come ...
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799 views

Installing JDK 1.4.2.19 on Windows XP SP3

I am currently trying to install JDK 1.4.2.19 on a completely clean (no other software) Windows XP SP3, which results in the error Error reading setup initialization file When doing the same ...
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1answer
3k views

Jdk1.7.0_10 with eclipse Juno

I downloaded Eclipse IDE for Java Developers for Windows 64 Bit from - eclipse download , and also jdk-7u9-windows-i586.exe from oracle downloads . Then I installed the JDK in C:\Program Files ...
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1answer
37 views

Force particular Java version in particular directory

I have multiple versions of java installed on my machine (5,6,7). I downloaded a project which requires jdk6 to compile. Is there a way to 'set' jdk6 to be the default one in that particular ...
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117 views

Run Java applications with JDK on OS X

Apple in the latest releases of OS X removed Java from default installation so for my needs I installed JDK from Oracle's website. ~ java -version ...
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1answer
430 views

Installed Java SE 7u10, still seing 7u10ea on OS X?

when I type java -versionI still get the Early Access version and not the stable JDK 7u10. please how to fix that ? I am working on Mac OS X Mountain Lion. ls ...
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1answer
307 views

Mac OS 10.7 Missing Java Completely

I'm in dire straights. I was trying to replace my java JDK and downgrade to 1.6 and somehow managed to completely screw up all the previous versions in the process. Bottom line, my Mac has no JDK ...
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1answer
4k views

jstack command not found on centos

I installed JDK by downloading the RPM from oracle and installed it using yum. But the jstack command is not recognized. I'm using CentOS 6.3 How can I make it work?
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96 views

How can I get back Java Preferences after uninstalling JDK 7 on Mac

When I installed Oracle's JDK 7 on Mac (OSX 10.8), Java Preferences disappeared. Now I removed JDK 7, and reinstalled Apple's JDK 6, but still, I don't have Java Preferences in Applications/Utilities ...
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0answers
1k views

Errors when installing jdk 1.7 in linux

When I am installing jdk 1.7 in Oracle Linux by using the following rpm -ivh jdk-7u9-linux-i586.rpm However I am getting the following errors, how can I resolve these errors and install jdk 1.7? ...
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546 views

How to install Java 7 on Solaris 9?

Oracle states the following regarding Java 7: This version of the JDK is supported on the Oracle Solaris 10 Update 9 or later OS, Oracle Solaris 11 Express OS, and Oracle Solaris 11 OS ...
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4answers
5k views

Java not detected by browser

I have java installed on my computer, but none of my browsers seem to detect it a and I'm not able to run any applets. (Trivial, as it may seem) I've wasted a lot of time googling and trying to ...
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3answers
4k views

Wrong java -version being reported

I am running Windows 7 Professional x64 and have the following Java versions installed: x64 C:\Program Files\Java jdk1.6.0_24 jdk1.7.0_04 jdk1.7.0_07 jre6 jre7 x86 C:\Program Files (x86)\Java ...
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1answer
2k views

Eclipse says “Access Denied” when running javaw and how to fix it?

I'm trying to get Eclipse to compile and run a HelloWorld class but it can't even do that. I have installed Eclipse x86 SDK 4.2.0 together bit with the latest JRE and JDK both in 64 bit as well. I ...
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5answers
17k views

Windows 8 & Java Development

I'm considering to upgrade my PC to Windows 8, but I have one concern though. I haven't yet found any "confirmation", that the JDK and Eclipse will work on Windows 8. Have anyone tried to ...
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4answers
13k views

How to install jdk with yum on Fedora 17?

I want to install jdk by yum on Federa 17 and using : su -c 'yum install java-1.6.0-openjdk' But it show "no available package". How can I do to install it ?