static final

package ch.claude_martin;

import java.util.function.IntFunction;
import java.util.function.IntSupplier;

public class SomeClass {
    static {
        m();
    }
    static int i = 10;

    static final int J = twenty();

    static int twenty() {
        return 20;
    }

    static void m() {
        System.out.println(i);
        System.out.println(J);
    }

    public static void main(String args[]) {
        m();
    }
}