How can I set the path to my Java decompiler in VSCode-CodePudding

I am relatively new to stack overflow, VSCode, and programming. I am using a Mac. I downloaded VSCode for use with Python around two months ago. I can not run my code in VSCode but I enjoyed working in VSCode so I would write in it and run my code outside of it. Now I have the same issue with Java. I can not "solve," this in the same way because I do not know how I can run my Java code outside of an IDE.

I first read the instructions for setting up VSCode for Java on VSCodes website. I followed the instructions but when I tried to run a, "Hello world," program it said I did not have a debugger. I re-installed Redhat's Java support, closed and re-opened VSCode, and tried to run it again. This time it said java.jdt.Is.home is pointing to a missing or inaccessible folder. I looked this up found one description of this issue from 2018. I had a hard time understanding what it was asking me to do but at my best interpretation I wrote "which java," in Terminal and copy pasted what it returned (usr/bin/java) into settings.json after "java.home: ". This gave me an error stating that it is outdated and I should change it to, "java.jdt.Is.home: " so I did. I also tried adding "local/" between "usr/" and "bin" as it appeared in my path to my Python3 interpreter. All of these gave me the same error when I tried to run a hello world program. The java.jdt.Is.Java.home variable defined in Visual Studio Code settings (/usr/bin/java) does not point to a JDK. What can I do to solve my issue with Java in VSCode?

CodePudding user response：

which java can not get the right java home.

You need to take /usr/libexec/java_home or /usr/libexec/java_home -V.

Java home on MacOs looks like: /Library/Java/JavaVirtualMachines/jdk-16.jdk/Contents/Home

But You need not set the "java.jdt.ls.java.home" at all. Because the JRE has been embedded in the Language Support for Java(TM) by Red Hat extension. Only the universal version without embedded JRE can specify the java.jdt.ls.java.home manually. Otherwise, it will search JDK_HOME JAVA_HOME current system path.

You can refer to the official dosc.

So, have you installed the related extensions? You can install Extension Pack for Java, which contains the extensions you need.

I am a little confused about why you can not run the python or java codes, it's very rare. After you installed the related extensions(Python Extension Pack) , just right-click in the editor, you can select the Run Java Debug Java Run Python File in Terminal and so on. Or you can click the button on the top-right.