public class Pass1 {
   public static void main(String[] args) {
      Person p = new Person();
      p.name = "Dimmu";
      change(p);
      System.out.println(p);
   }
   public static void change(Person p) {
      p.name = "Borgir";
      p = null;
   }
}
class Person {
   public String name;
   public String toString() { return name; }
}