jar file won't open?

Question

Java

Hello everyone, I just started learning the language and a problem arose:
I created a simple program, compiled it into a jar file. Everything works fine for me and starts, but on other computers if I drop it:

or this:

C:\Users\Downloads\Telegram Desktop>java -jar +.jar
Error: A JNI error has occurred, please check your installation and try again
Exception in thread "main" java.lang.UnsupportedClassVersionError: com/company/M
ain has been compiled by a more recent version of the Java Runtime (class file
version 60.0), this version of the Java Runtime only recognizes class file versio
ns 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)

C:\Users\Downloads\Telegram Desktop>
I don't understand what's wrong, please help

Answer 1

You have Java version 8 installed, in which case you need Java 16 or higher.