This question already has answers here:
Access restriction on class due to restriction on required library rt.jar?
(15 answers)
Closed 9 years ago.
I'm writing a Java app and am currently working on all of the Apple native LAF stuff. I'm trying to customize the application menu and I've found that I need to use com.apple.eawt.Application in order to do so. However, when I try to import that class, my IDE says:
Access restriction: The type Application is not accessible due to restriction on required library /Library/Java/JavaVirtualMachines/jdk1.7.0_45.jdk/Contents/Home/jre/lib/rt.jar
I'm using JDK 1.7 update 45, on Mac OS X 10.9, using Eclipse. The rt.jar is on the classpath, but something is unhappy. How do I resolve this?
you might be trying it with JRE in your build path, you can try changing it to JDK
please refer my answer
Related
This question already has answers here:
IntelliJ can't recognize JavaFX 11 with OpenJDK 11
(7 answers)
Closed 3 years ago.
I think I am not alone who doesn't know how to properly download Java and JavaFX on Linux. And how make it works in IntelliJ Idea
So my questions are:
I'm looking for Java JRE or Java SDK?
Must Java and JavaFX be at same version?
How I will connect it with IntelliJ
Do I have to write something like in windows "path variable"?
Maybe this is not proper question, because it was answered somewhere else, but I dont undrestand basic things about installation of Java. Thanks everyone.
1) JRE is a Java Runtime Environment - enough for Java code to run but not enough to develop code. What you need is JDK (Java Development Kit), you can download it here https://www.oracle.com/technetwork/java/javase/downloads/index.html
2) No, they don't need to be the same version
3) Follow these steps: https://openjfx.io/openjfx-docs/#maven
I prefer doing it with Maven (less hassle) but you can find easy to follow explanations for both on that page
4)Yes in linux you need to add Path variable as well - here are the instructions:
https://www.baeldung.com/linux/path-variable
This question already has answers here:
How to add JavaFX runtime to Eclipse in Java 11?
(6 answers)
Closed 4 years ago.
I just installed the newest Eclipse and e(fx)clipse, but it didn't change anything - I have no idea why javafx imports are not resolved.
Sorry I can't provide more proves I tried to solve it, but I just think (and remember it was I like that before) installing it and restarting Eclipse should be sufficient.
The purpose of e(fx)clipse is not to resolve JavaFX imports. If using Java 11 or higher, you have to add the JavaFX dependency yourself because JavaFX has been removed in Java 11. See Java 11 release notes:
JavaFX is no longer included in the JDK. It is now available as a
separate download from openjfx.io.
See: Getting Started with JavaFX 11
e(fx)clipse offers as a runtime e. g. a way to build JavaFX OSGi/Eclipse-based applications and provides tooling for JavaFX, e. g. to edit FXML files.
This question already has an answer here:
Setting up JDK 10 in IntelliJ IDEA: the selected directory is not a valid home for JDK
(1 answer)
Closed 4 years ago.
Please refer to the picture below.
I changed the default java installation path to D:\Program Files\Java\
I created a new java project.
Firstly, it reminds me the java path is not existed and the program cannot run.
When I tried to modify the path to my location, it rejected me saying it's an invalid path.
Why?
Please note: this post didn't resolve my question:
I know the difference of jdk and jre; I do reinstalled latest java repeatedly.
Only, I didn't want to install java to C disk. I have set my JDK_HOME and JRE_HOME to my location.
You're right! IntelliJ version 2018 resolve this issue.
2017.1 is not compatible with java 10. For official java 10 support please use 2018.1. Also It is possible to use jdk10 with 2017.3 build,
but there would be no syntax highlighting.
Source, emphasis mine
Java 10 support starts from build 2018.1.
take a look at this IDEA 2017.1.1 doesn't detect JDK 10
You have to upgrade your IDE now.
You are getting that error because your IDE is out of date. Updating your IDE here should do the trick.
This question already has answers here:
Where can I find the Java JDK source code? [closed]
(11 answers)
Closed 7 years ago.
E.g I'd like to see how Integer Class is coded. Is that available?
When you install JDK, there is an option to install the sources, which is selected by default.
After installing, when you open a project, IDEs will usually automatically index Java sources. If not, you can attach the sources to your project depending on your IDE.
Alternatively, you open <JDK_HOME>\src.zip and see the Java sources.
Assuming you are using some IDE.To attach the Java source code with Eclipse(for example), When you install the JDK, you must have selected the option to install the Java source files too Or you can refer below think to attach.
See Also
Attach java source in Eclipse.
This question already has answers here:
Closed 10 years ago.
Possible Duplicate:
How do I import the javax.servlet API in my Eclipse project?
When I try to use javax.servlet.http.*; an error package does not exist is thrown. Should I want to reinstall java or it occurs due to some other problem. I'm using j2sdk 1.4.0 & Tomcat 6.0.
Guess servlet.jar is not on the classpath. Assuming you are on Windows, right click on My Computer -> Properties -> Advanced -> Environment Variables, and check your CLASSPATH entry.