Hi, I've got a problem with an Arraylist!!

[ShaveDave27]

Hi, im creating an arraylist of object Person, which contains the information First_name, Surname, but i have come across a problem. This is my code :

import java.util.*;
import java.util.ArrayList.*;

public class People
{

public static void main (String[] args)
{
ArrayList<Person> people = new ArrayList<Person>();
people.add( Person.First_name );
people.add( Person.Surname );


}
}

When I try to compile the code it tells me i cant reference the non-static variable First_name into a static context. I know i'm not allowed to do this but i cant see how to over come it. I cant change either of my methods from static to non-static and visa versa. Any ideas??

[JosAH]

You can only add Persons to that list so you have to create them first as in:

Person p= new Person("Joe", "Jones");
// you can add 'p' to your list

kind regards,

Jos

[ShaveDave27]

You can only add Persons to that list so you have to create them first as in:

Person p= new Person("Joe", "Jones");
// you can add 'p' to your list

kind regards,

Jos

Thanks for that, but my class person has parameters which allow me to create a new person. I have tried creating a new person through these parameters and then doing:

people.add(person1.First_name);

and i just tried creating a person like yo usuggested.

I still get the error message of non-static cannot be used in a static context.

Any ideas??

[JosAH]

Any ideas??

Yep, read my previous reply again: create a Person first and add that Person
to your list. You can't add single names to your list nor can you refer to a
non-static object memer (such as "First_name") from a static context where
no Person object is in scope.

kind regards,

Jos

[ShaveDave27]

Yep, read my previous reply again: create a Person first and add that Person
to your list. You can't add single names to your list nor can you refer to a
non-static object memer (such as "First_name") from a static context where
no Person object is in scope.

kind regards,

Jos

Oh ok i understand! Sorry! Thanks a lot.

Dave