public class InstanceInitTest {

    static {
//    {
        a = 6;
        System.out.println(a);//Cannot reference a field before it is defined
        System.out.println(fun());
    }
    static int fun(){
        return a;
    }
    static int a = 9;
    public static void main(String[] args) {
        System.out.println(new InstanceInitTest().a);
    }
}