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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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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“Java returned exit code=13” when starting Eclipse

I have some problems starting Eclipse. When I try to start it, this error window appears: Does anyone have any idea of how to fix this? I am using Windows 7.
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Java SE Development Kit install interrupted

I want to install Xamarin in Windows 8.1. it requires to install Java Development Kit 1.6 or above 32-bit. when I try to install JDK, I get this error message" I'm using Windows 8.1 x64. How can I ...
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1answer
129 views

JDK 8u31 Not Installing on Windows 10 Preview

I'm trying out the Windows 10 Preview on my computer, and I tried to install Java and the JDK. Java installed fine from Java.com, but intalling the JDK from the JDK8 Download Page gave me the ...
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2answers
45 views

Changing terminal Java version - not all options shown

I'm trying to change the JDK that the linux terminal is using to run jar files from 1.6 to 1.7. I'm trying to do this by using the command update-alternatives --config java which is giving me the ...
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1answer
152 views

How to recover /usr/libexec/java_home executable on Mac OS X 10.8.5?

Today I accidentally delete the /usr/libexec/java_home executable on my Mac OS X 10.8.5 (Mountain Lion) while trying to install latest JDK. Then, I realized that homebrew (package manager) and some ...
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1answer
357 views

Install 64-bit JDK versions with Ninite

I'm attempting to build a Ninite installer/updater for my own use and I've found it fantastic. However, as part of the profile, I would like to include the installation of multiple versions of the ...
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1answer
61 views

Should I trust download.oracle.com if my certificate does not match?

I've been getting this every time I try to download a JDK 8 update to my MacBook. First, I go here: http://www.oracle.com/technetwork/java/javase/downloads/index.html I click the download location ...
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1answer
595 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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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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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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1answer
253 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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1answer
85 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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2answers
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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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4answers
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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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0answers
32 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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1answer
67 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
146 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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0answers
57 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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675 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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1answer
226 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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105 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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JDK-Installer doesn't install

I can't install JDK on my Windows 7 64bit system. I downloaded the latest version (jdk-7u4-Windows-x64.exe) from Oracle and ran it. A warning appeared, because it's a download. I commited to continue. ...
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119 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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1answer
257 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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Can't install JDK on Windows 7, “Wrapper.CreateFile failed with error 123”

I'm trying to install JDK on Windows 7, 32 Bit. I'm logged in as administrator, but it tells me: Installer: Wrapper.CreateFile failed with error 123: The filename, directory name or volume label ...
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How to uninstall Java SE from the command line

Oracle states that the Java SE installer is built using MSI, but the help page, rather unhelpfully doesn't list uninstall options. I need to do a command line uninstall, and I can't figure out or ...
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3answers
907 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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4answers
14k 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 ?
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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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6answers
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Unable to install Android for Windows 7 because JDK is not found

I have JDK SE7u4 installed in windows 7. I tried to install Android on Windows 7 using the installer_r18-windows.exe but no avail. The setup window showed the message saying that the Java SE JDK not ...
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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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1answer
129 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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2answers
108 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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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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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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1answer
12k views

How to install Sun's JDK on CentOS?

I having difficult time installing Sun's JDK on CentOS. The default installing with "yum" is "openJDK", but I need to install Sun's JDK. Is there easy instruction out there I can use or any ...
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1answer
3k 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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1answer
5k views

Should JRE 7 be kept in Program Files (x86) or Program Files in Windows 7 (64-bit)?

I have updated JRE to version 7 update 4 and JDK to version 7u4. I have two Java folders, one in Program Files another on Program Files (x86). JRE was automatically downloaded to Program Files (x86) ...
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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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1answer
426 views

Eclipse startup Error code=1?

I just downloaded eclipse-java-helios-SR2-win32-x86_64.zip extracted the zip. When I'm trying to run I get this error: Here is my .ini file: -startup ...
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1answer
53 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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53 views

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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2answers
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How can I make JDK 7 the default JDK in NetBeans?

I uninstalled JDK 1.6.26, then installed JDK 7 and changed my PATH to point to the new version. However when I now open NetBeans it shows me this error: Cannot locate java installation in ...
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1answer
135 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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332 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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15k views

Where to download JDK 1.6 for OS X?

Currently I use a MacBook Pro with OS X 10.6.7. Where to download JDK 1.6 for OS X?
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1answer
108 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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0answers
780 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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598 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 ...