似乎无法让我的Java在VS Code中工作

Question

I have been trying to get VS Code to work and compile my Java code. I have finally given up trying to fix it myself.

I can't compile my code, I can't run it. I don't even know what's wrong with it. I really want to use VS Code because it's so clean and versatile (so please don't recommend me other IDEs).

Here is my code:

class DataStruct {
    Run|Debug
    public static void main(String[] args) {
        System.out.println("Hello");
    }
}

^{(Manually transcribed from this image .)}

Here are my system variables:

This is what I get:

PS C:\Users\SvenH\AppData\Roaming\Code\User\java-ws> cd "c:\Users\SvenH\AppData\Roaming\Code\User\java-ws\" ; if ($?) { javac DataStruct.java } ; if ($?) { java DataStruct }
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: DataStruct has been compiled by a more recent version of the Java Runtime (class file version 55.0), this version of the Java Runtime only recognizes class file versions up to 52.0
        at java.lang.ClassLoader.defineClass1(Native Method)
        at java.lang.ClassLoader.defineClass(Unknown Source)
        at java.security.SecureClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.defineClass(Unknown Source)
        at java.net.URLClassLoader.access$100(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.net.URLClassLoader$1.run(Unknown Source)
        at java.security.AccessController.doPrivileged(Native Method)
        at java.net.URLClassLoader.findClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
        at java.lang.ClassLoader.loadClass(Unknown Source)
        at sun.launcher.LauncherHelper.checkAndLoadMain(Unknown Source)
PS C:\Users\SvenH\AppData\Roaming\Code\User\java-ws>

Answer 1

Make sure you are compiling and using the same java version.
One simple way to do it is:

• uninstall JDK and JRE
• download JDK and JRE, both at the same version
• install them