"The method main cannot be declared static; static methods can only be declared in a static or top level type"

Question

class Perkusja {
  boolean talerze = true;
  boolean beben = true;

  void zagrajNaBebnie() {
    System.out.println("bam, bam, baaaa-am-am");
  }
  void zagrajNaTalerzach() {
    System.out.println("brzdęk, brzbrzrzdęęk");
  }
  class PerkusjaTester {
    public static void main(String[] args) {
        Perkusja p = new Perkusja();
    }
  }
}

Hello! I'm new to stackoverflow so please forgive me my atrocious editing.

I'm new to Java and i can't figure out where exactly the issue lies and what's the problem. I get the following error on the line public static void main(String[]args):

The method main cannot be declared static; static methods can only be declared in a static or top level type

I'm using eclipse and i'm doing some simple java exercises. I googled the problem but the answers are usually related to much more complex pieces of code.

How do i fix it and what's the cause of the following error? I'd be grateful for an explanation on this particular example.

Cheers!

Answer 1

You are declaring your main method in PerkusjaTester which is an inner class of Perkusja. That is forbidden.

You should declare your test class outside of class Perkusja

Note : PerkusjaTester is an inner class, not a static nested class. That is why PerkusjaTester is not a static type. As mentionned by Jon Skeet, you could also add the keyword static on class PerkusjaTester.