Scala is unable to execute code successfully.

After setting up the scala development environment and executing the following code,
There is an error and it cannot be executed properly.
How can I start it well?

object Hello {
  defmain(args:Array [String]):Unit={
    println("Hello, World!")
  }
}

"C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\bin\java.exe" -agentlib:jdwp=transport=dt_socket,address=127.0.0.1:51940,suspend=y,server=n -javaagent:C:\Users\Owner\AppData\Local\JetBrains\IdeaIC2021.3\captureAgent\debugger-agent.jar -Dfile.encoding=UTF-8 -classpath "C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\charsets.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\access-bridge-64.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\cldrdata.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\dnsns.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\jaccess.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\localedata.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\nashorn.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\sunec.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\sunjce_provider.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\sunmscapi.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\sunpkcs11.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\ext\zipfs.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\jce.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\jfr.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\jsse.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\management-agent.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\resources.jar;C:\Program Files\Eclipse Adoptium\jdk-8.0.322.6-hotspot\jre\lib\rt.jar;C:\Users\Owner\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\org\scala-lang\scala-library\2.13.8\scala-library-2.13.8.jar;C:\Program Files\JetBrails\IntelliJ IDEA Community Edition 2021.3.2\lib\idea_rt.jar "Hello
Connected to the target VM.Address: '127.0.0.1:51940', Transport: 'Socket'
Error: Main class Hello not found or could not be loaded
Disconnected from target VM.Address: '127.0.0.1:51940', Transport: 'Socket'

Process terminated with exit code 1

scala

2022-09-30 22:03

1 Answers

It seems that the problem was that there was no scala code in the main/scala directory.
I put the scala code in the main/scala and it worked.

2022-09-30 22:03

If you have any answers or tips

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