JAVA : Program Works in Terminal , But not in Visual Studio Code : Mac OS

Question

My JAVA Programs used to run without any errors on both the Terminal and Visual Studio Code's Terminal.

After my Mac updated to MacOs Big Sur Version 11.0.1, my JAVA programs show an error, even though the same code worked properly before.

There was no error before.

I checked my JDK and JRE Installations also

My Python files execute normally in the VS Code environment, so I do not think there is a problem with VS Code.

I have tried searching for an solution and have tried to clear the logs.

I would appreciate if anyone could guide me:)

Answer 1

1. Run the .java file in Terminal to check if JDK can work normally:

    javac Hey.java java Hey

2. If there's nothing wrong with the above command execution, turn to VS Code, uninstall Java Extension Pack and also delete the related folders under User/name/.vscode/extensions , then reinstall it again;

3. Set java.home and java.configuration.runtimes in User Settings.json.

Reference: Configure JDK .

Then run the project again to see if the problem goes away.

Answer 2

您需要在 VS Code 中安装 java 插件。

Answer 3

Install Java by searching for extensions in VSCode and try to run again.It will be executed. I belive it is not installed

Answer 4

Hi just found a solution here! Initially guess it should be a problem with zsh. so first open your terminal and type

open ~/.zshrc

at this point you will see text editor pops up with a zsh config file.

Add

export JAVA_HOME=`/usr/libexec/java_home

to the last line in that file, and save the file quit.

Then just reopen the VSC and you will notice everything would back to normal as usual.

Answer 5

I faced a similar problem. When running the same Java program, it worked in terminal but VS Code couldn't detect java.

All it turned out to be was I forgot to add Code itself to Path after reinstallation, nothing to do with Java.