After some experiences with Scratch, they told me the best option for beginners is Java, if I want to learn something usefulin future. I downloaded Java SE (JDK 10) and Netbeans and installed both. Netbeans ask for a folder that is Java, which I just installed. But it doesn't recognize the folder and says firstly no compatible version found and later the specified JDK folder does not contain JDK. What is wrong?
You have installed JDK 10 I guess. There was a contradiction in your question since you have downloaded JDK10 and installed JDK8. First of all, I would like to mention that the latest version of of Netbeans supports only JDK8.
Try installing JDK 8 and reconfigure Netbeans accordingly.
NetBeans only supports JDK 8. Install that and point to the folder for JDK 8 when NetBeans asks. If it doesn't ask again you can do it manually, shown here Changing java platform on which netbeans runs
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I had java version 8 previous and my eclipse worked just fine. But now I have java version 7 and I can't open eclipse on my computer. What should I do? please help.
I think there are two options:
Upgrade to Java version 8 (or newer).
If you can't do that, downgrade to a version of eclipse that supports Java 7. eclipse 4.5 (Mars) (or earlier as noted on the linked page), as of eclipse 4.6 (Neon) Java 8 is required.
I feel I should note that newer versions of Java (and eclipse) can still target Java 7 (and many earlier versions).
But now I have java version 7 and I can't open eclipse on my computer. What should I do?
Use versions that work together. When you for example look at your second screen shot, it says something like "requiredJavaVersion=1.8" or so.
In other words: you can't just come in and run eclipse with any version of java.
The other answer gives you the required details.
And a final note here: in case you tried to start eclipse with that older JVM in order to "allow" to ensure that eclipse won't allow "java 8" stuff in a project: that isn't the right way then. Instead: eclipse allows you to "define" JDKs to be used for your project. So you can easily tell eclipse: "I have a Java7 jdk sitting here, please use that for project X".
You do not need to run eclipse itself with a Java7 JVM in order to use a Java7 JDK for an eclipse project!
There will be a file under the Eclipse installation directory named as eclipse.ini.
It will launch the eclipse for that specific jdf and you can change the path to your jdk7.
Hope it helps.
It depends basically on which version of the eclipse you have.
If you have eclipse 4.6(Neon) or the latest version, then you must need a newer JDK version of Java (>=1.8 which you need to download). Or If you want to roll back to an older version of Eclipse then consider downloading eclipse 4.5(Mars).
Or If you have an eclipse version of 4.5(Mars) or older then see in eclipse.ini
-Dosgi.requiredJavaVersion = 1.8 and change it to -Dosgi.requiredJavaVersion = 1.7 which can be found in the folder containing eclipse.exe file.
So I'm trying to install Eclipse IDE for Java on my main pc.
I had no problem installing it on my laptop but when trying to install it on my PC I get JRE Missing webpage.
I've installed the JDK and JRE and they are both working. I could use some advice.
i also had the problem with eclipse and the JRE.
Try to delete the 2 Java versions and deinstall eclipse.
then install the JDK first and seccond the JRE. after the 2 installations install the new eclipse version(in the installer you chan choose between some installations take the first).
i hope I can help you.
Unless explicitly told in eclipse.ini Eclipse uses the system wide java command.
Easiest for you right now is to install a system wide JRE (same 32/64 bit flavor as eclipse).
I had the same issue. It was happening when installing different match of JDK version (11 in my case), with JRE (8 in my case).
So, in order to have this installation of Eclipse working make sure that you have both JDK and JRE referring to the same version. Installation will not work if they have different versions.
I followed the answer given here:
https://stackoverflow.com/a/27647491/5904193 to install Netbeans ide 8.2 with jdk 10.0.2 on windows 10 64 bits OS.
After installation, I found that the jdk was generally incompatible with the ide. So I finally got the latest Netbeans version 9.1 from Apache.
This works with my jdk so I decided to clean things up by uninstalling Netbeans 8.2. Attempting to uninstall directly with the uninstall executable fails with the same error as the installer. That is it requests jdk 8 or higher (I have only jdk 10 installed).
I then tried using the jar file trick by extracting the Uninstaller and executing the jar file with Java. Things happened (lots of output in the console screen and uninstall actually completed) but all the program files remain, I can still see the program in Programs and Features and I could even start the app using the desktop shortcut that was not even touched by the uninstall.
I suspect I could uninstall it normally if I installed jdk 8. But, I mean, there has to be a way to uninstall it without jdk 8 after being able to install without that jdk. Thanks.
"But, I mean, there has to be a way to uninstall it without jdk 8
after being able to install without that jdk."
There is no reason that should be true since you did not did not meet the "required software" standard for NetBeans 8.2, which states "Java SE 8 is required to install and run NetBeans IDE 8.2", nor did you follow the standard installation process.
So you "installed" NetBeans 8.2, but not successfully. Since it wasn't installed properly it's not surprising that the uninstall process is failing.
After installation, I found that the jdk was generally incompatible
with the ide.
That's because:
You didn't install NetBeans properly.
Regardless of that, NetBeans 8.2 does not support the use of any JDK > 8.
I suspect I could uninstall it normally if I installed jdk 8.
Perhaps, and unfortunately I think that is what you need to try. However, since you chose not to follow the normal NetBeans 8.2 installation process don't be too surprised if you still have problems.
I am reading the JavaEE first cup, and I needs JDK8+, my version is older, so I upgraded my java, Configure the System Path, Install so on, I successfully run java -version in command prompt and it recognizes me that I've installed successfully, but when I start my NetBeans, It can't find Java! Not only that, but also my Eclipse neon can't find java! I check the eclipse.ini, maybe it just need a JDK 8. So I just wonder, how can I make my NetBeans found my Java?
I am new to netbeans,so I resort to configuration in eclipse.ini,I try to add “--ALL"like script,I doesn't work anyway!Thank to my patience,I notice some jdk1.8required
property,I am completely rush to my deadline,so I avoid to this problem,and got 1.8，but thanks a lot if you recommend eclipse IDE lastest version which can work well with JDK 10 without any modification in ini file!
I've read here that Intellj is written in java,
how then it can run without any JRE installed on the machine?
It cannot. Requirements clarifies that at least JDK 6 must be installed.
I guess some distributions might have it bundled but it is not the case for standard one version 12.
IntelliJ IDEA comes with JRE. Just look inside IDEA installation folder where you can find jre folder.