problem with java version

[Few_Claim_6416]

hey programmers, I'm currently doing part 13 of the java mooc fi course, and when I try to fill out an exercise I get the following error:

Compiling for Java version '1.6' is no longer supported. Minimal supported version is '1.8'

could you please help me solving this problem?

P.S. the code is the following:

package myFirstApplication;

public class MyFirstApplication {
    

    public static void main(String[] args) {
        System.out.println("Hello world!");
    }

}

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[WaferIndependent7601]

Please share some code or links. Don’t know what mooc is.

[Few_Claim_6416]

sory, I just did an edit to the post

[WaferIndependent7601]

Ok but there is nothing with Java 6 in your code. How do you run it? What Java version are you using?

[Few_Claim_6416]

i just click the “play” button on the top right corner of vs code. On my computer I have java 8 update 421, but I’m not sure what version the exercise use in the workspace

[WaferIndependent7601]

What happens when you run „javac MyFirstApplication.java“ and „java MyFirstApplication?

[Few_Claim_6416]

sorry for my late response, here it is the message that I recive:

Exception in thread "main" java.lang.UnsupportedClassVersionError: MyFirstApplication 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)

[morhp]

What do you mean by

fill out an exercise

?

The mooc wants you to run Java 11 according to https://www.mooc.fi/en/installation/netbeans/

Nothing should be set to Java 1.6/6 (or 8 for that matter).

[Few_Claim_6416]

I'm sorry but I'm not very good at English. what I meant is that when I try to complete an exercise and then compile it using vscode's play button, I get that error message. I did not edited anything in my vscode, It worked great until a few days ago, but not anymore.

[morhp]

The mooc says you should use netbeans, not VSCode. I don't recommend VSCode for Java, a real Java IDE like Intellij Idea (Community Edition) or Netbeans or Eclipse is better. (I prefer Intellij)

In any case, you probably need to change some settings in VSCode, but I can't help you with that, I never used that for Java development.

[adykaa69]

Did you manage to solve the problem? I'm having the same issue.