Identify the error in this Java class and fix it:

Identify the error in this Java class and fix it:

class Person {
  String name;
  Person() {
    name = "Unknown";
  }
  Person(String n) {
    name = n;
  }
  void display() {
    System.out.println("Name: " + name);
  }
}
public class Test {
  public static void main(String[] args) {
    Person p = new Person();
    p.display();
  }
}