I already have some version installed on the machine, 1.7 and 1.6.
Now I have the need to install version 1.5, but when I try to install an error occurs, speaking to uninstall the versions that I have the Java (JDK).
I have no chance because I have other applications using these versions, is there any possibility to do this without uninstalling these versions I already have ?
Thank in advance !
Bypassing the installer is bit of work, but doable. How to extract Java from the EXE installer is described in this answer: https://stackoverflow.com/a/6571736/73652
The JDK is a package of tools for developing Java-based software.
Check your system architecture in the control panel, i.e. 32 or 64-bit.
Click on C → program folder → java folder.
If there is no JDK folder present, then follow the below steps:
Search in Google JDK download.
Scroll to bottom, and check for the system architecture of your system.
Click the download link and wait till the download is finished.
In downloads click on show in folder.
Click on the JDK icon and click on next until the setup process is completed.
Please find this video along with steps for JDK Install.
Related
The problem is that I already downloading the Eclipse installer, but a warning keeps on occurring that I need a new JVM version 1.8 or higher. So, I go to the Oracle website and download the latest version of java. The warning keeps on appearing when I try to re download the Eclipse IDE. When I check java -version on Terminal, the version is still shown as 1.6 (the old java version). I am using a MacBook version 10.12.13 and using macOS Sierra. I am trying to download Eclipse Neon.
Download links(download Java first, THEN Eclipse): java - eclipse ---
These are what I used for the downloads, and they work great. I also use a mac.
For java(Be sure to click on the boxed option). You must accept the license agreement:
And the eclipse link is pretty self-explanatory. Just press the orange "download" button in the top right corner.
I have two jre in my PC which is running windows 7. When I am running a eclipse project I dont know which version of jre it is calling, so I searched on net for the solution and tried this two things:
In cmd typed java --version and it showed me 1.6.
In control panel, I went it in java control panel and selected java and it showed me 1.7 enabled.
Now, I am confused and how can I change the jre of the system? I want my eclipse project which is running on tomcat to use a specific jre. But I dont know which jre my system is using.
Thanks in advance.
You may check Windows->Preferences->Java->installed to check default JRE that it runs things under.
You may also check property eclipse.vm under the Help->About Eclipse->Installation Details->Configuration.
choose window preferences in eclipse. Select installed jre and add a jre and select an jre you are going to use.
java -version is what a java app on the system will use by default. What IE uses is determined by the extension (Tools->Manage add-ons) you can see the java plugin there.
You can register any jre vesion you want in eclipse using the window->preferences-> installed JRE's
If you are using eclipse, you can set the Java version by going to project->properties->java build path->select the jre version and click on edit.
You can choose the version that you want. Whichever JRE library is displayed in the build path is the version that eclipse is using to compile your code.
Alright so basically, I'm trying to run Eclipse with JavaFX, but then it gives me this error:
You are not running your eclipse instance with Java7 or Java8. The JavaFX tooling is disabled because of this.Make Java7/8 the default system java or adjust your eclipse.ini to pass -vm pointing to your Java7/8 install.
In case you want to turn off this check open your preferences and go to General > Startup and Shutdown and uncheck 'JavaFX Tooling Java Check'
Now I know it isn't pointing to the right SDK, but I have no idea how to change it, since I'm kind of new to this this stuff. I've already downloaded JDK 7.40 as well. I'm also using Ubuntu on a virtual machine, if that even matters anyway. Can anyone help me, I'd appreciate it.
Pre-requirements:
Install Java™ 8.
Install Kepler SR2 (4.3.2) .
The Kepler is still not supporting Java8. What to do?
Open Eclipse
Help > Install New Software…
Enter the following URL into the ‘Work with’ field:
http://download.eclipse.org/eclipse/updates/4.3-P-builds/
Press ‘Enter’
Select category ‘Eclipse Java 8 Support (for Kepler SR2)’
Click ‘Next’
Click ‘Next’
Accept Licence Agreement
Click ‘Finish’
Now jre8 is correctly located.
Now configure JavaFx
Open Eclipse
Help > Install New Software…
Enter the following URL into the ‘Work with’ field:
http://download.eclipse.org/efxclipse/updates-released/0.9.0/site
Press ‘Enter’
Select category ‘Eclipse Java 8 Support (for Kepler SR2)’
Click ‘Next’
Click ‘Next’
Accept Licence Agreement
Click ‘Finish’
It looks like the default java on your system is not java7. What do you get when opening a shell and execute java -version? Solution is to:
A) make java7 the default java
B) start eclipse with -vm
Apparently, you have installed 32bit Eclipse and 64bit JRE/JDK on a 64bit OS. Please use 64bit Eclipse and the problem will be solved. Please make sure JAVA_HOME And JRE_HOME is present in environment variables.
I had the same issue. I tried re-installing Eclipse, but it wouldn't work. I had to completely remove the project and delete all the project files. After that, I re-started eclipse and created the project again. However, this time I made sure the project path included the Java FX library as shown in the screen shot.
Java Build Path
I did this while I was creating the project and then I was able to create the project without any issues. Give this a try.
I had a Windows XP. I also had JDK6. I downloaded "Android installer r11" for windows. When I click the installer, the error message is displayed as alert Java SE development kit is not found, Then the installation cannot happen.
But in my system I had a Java SE 6. I cannot find why it is not take the Java.
Try this step it may help you:
Installation sequence: JDK, Eclipse, ADT, Android SDK
1. JDK
First, head over to Oracle Web site to download and install the latest Java Development Kit.
Ensure that the environment variables look something like this:
CLASSPATH
C:\Program Files\Java\jdk1.6.0_10\lib;C:\Program Files\Java\jdk1.6.0_10\lib\tools.jar;
C:\Program Files\Java\jdk1.6.0_10\lib\dt.jar;
PATH:
C:\Program Files\Java\jdk1.6.0_10\bin;C:\Program Files\Java\jdk1.6.0_10\jre\bin;
At the command prompt type java-version to view the current system has been installed Java version.
2. Eclipse IDE
Next, from the Eclipse Web site Download the latest Java Eclipse Classic as our development environment, select here eclipse-jee-helios-SR1-win32 version, download the Eclipse is not good need to install, unzip to the right place to use.
3. ADT (Android Development Tools plugin, Android Development Kit)
ADT is an Eclipse plug-in, due to the use of the Eclipse version, the installation process referred to in the following menus and options may vary.
Then, start Eclipse, choose Help-> Install New Software ..., pop-up "Install" dialog box.
Click the Add ... button, pop-up "Add Site" dialog box:
Enter the Android update site here: Location: http://dl-ssl.google.com/android/eclipse// When you're finished, click "OK", back to "Install" dialog box.
In the "Install" dialog box, select just added the update site, waiting to find the appropriate version of Eclipse Select ... "Develpoer Tools" of all items, all the way to click "Next", accept the agreement, click "Install" start the installation.
After the installation is complete, restart Eclipse.
4. Android SDK
Next, from the Google website download the latest android-sdk. Extract the zip file to appropriate directory, remember the absolute path. Run the SDK Manager installation.
In Eclipse, select Windows -> Preference -> Android, enter the directory on the step down the path, click "OK".
The latest SDK, only tools, but no longer contains the platform or the Google add-on, we need to use the "Android SDK and AVD Manager" to install and update, such as platforms, tools, add-ons, and documentation of these SDK components.
%JAVA_HOME% should be in your path. Half of the time you can have an SDK and be missing that variable.
Get thee to a command line and type echo %JAVA_HOME%, or simply see if you get any output from javac -version. The exact variable for Java home is probably not quite right, but the second step should work. If javac fails you, you either never installed Java SDK (aka JDK) and instead got the SE, or you still haven't set the java binary folder into your path. Use your Windows search and look for javac.exe.
If nothing else works, go to java.sun.com and re-download and install a new SDK. The annoying part is that Glassfish and other things tend to complicate the java setup because they too must be set up during install or shortly thereafter.
I have my Windows work computer set up with JDE 5, but the plugin for the Mac OSX Eclipse on my home computer is JDE 6 and I can't seem to find a source to download it from.
I found a blog post about MacOS BlackBerry development, but it is from before the official MacOS plugin was released. Anything new on this front?
Just in case it saves anyone else wasting half a day, "FYI: Blackberry JDE 4.6 setup on Mac" on the BlackBerry support forums explains how to use the older Blackberry JREs with Eclipse on the Mac.
Were you still looking for an answer to this question? RIM has released the update for the Mac Eclipse v 1.1.2 Plugin. You have to go to "Help > Install New Software ..." and type the url: http://www.blackberry.com/go/eclipseUpdate/3.5/java . It should come up with options for the BlackBerry Java Plug-in Category. Clicking the arrow will reveal the other OS component packs (4.5 - 6.0). Install these (will take a while).
After this, go to the folder where your Eclipse plugins are located. You'll see the folders for the component packs (e.g. "net.rim.ejde.componentpack"). Copy the net.../components/bin folder from the 6.0 component pack to the other versions' components folder (backup the old one first).
In the components folder, there will be a BlackBerry.ee file. Copy the one from the 6.0 component pack into the other versions' components folder (again, backup the original). Open the new .ee file in a WYSIWYG text editor and change the version information to be accurate to the current component pack's version (e.g. 6.0.0.29 changes to 5.0.0.25).
In Eclipse, you need to add a system library. Open the Preferences and go to the Java > Installed JREs menu and click "Add...". When the window pops up, click "BlackBerry Execution Environment VM." For definition file, this is the BlackBerry.ee file for the version of the JRE you are adding. Name the JRE appropriately (e.g. BlackBerry 5.0). Next, click "Add External JARs..." and navigate to the net.../components/lib folder. Select the net_rim_api.jar file. Click finish and you should be good to go. (Repeat for other versions as necessary).
All that's left to do is to specify the correct JRE in your project properties (Java Compiler > {Click} Installed JREs link). Then, make sure the correct version is selected. Also, make sure there is only one JRE listed in the Project Explorer (newbie lesson learned).
Hope that helps if you still needed it to.
I should also add that I'm running my simulators on Windows via Parallels.
RIM has only released an Eclipse Plugin on OS X. The JDE is Windows-only and probably will always be Windows-only (RIM is trying to phase out the JDE and is encouraging all developers to move to the Eclipse platform).
Keep in mind that the Eclipse plugin for OS X is still VERY new and still has some rough edges - I tried it out and it crashed on more than one occasion! Also, there is no simulator available on OS X yet so you'll need a physical device to deploy and test on (I think it has to be a 9800 but I could be wrong). RIM has promised a simulator on OS X but probably not for another 6 months or so.
For Eclipse 3.6 you must use this url: http://www.blackberry.com/developers/jar/3.6/java/
If after downloading have error because too much authentication error, i'm suggesting you must re-create bb developer zone account & login using it (Kind of annoying, coz at my country bandwidth is limited & after waiting 3 hour, the installation is failed).
Also, in copying file don't forget copy fledge from net.rim.ejde.componentpack6.0.0_6.0.0.30/components/. If not when i try to add the definition file JRE i got this kind of error
"Execution Environment File Property-Dee.executable must point to a valid copy offledge.exe"
Hope this is can help.
Ahh. Seems like Apple removed java 5 and below from Snow Leopard (10.6). Leopard (10.5) still supports 1.4.2 and 5.0 and 6.0. You can find them in "/Applications/Utilities/Java Preferences.app".