Thread: calling class in other class not working

hi there
i have this class here:

public class UsernameArrayHolder {
	public String[] UsernameArrayHolder()  { //need identifier
		  String[]		UsernameArray	=	{"user1","user2","user3"};				//variable til at holde login navn
 
		  return UsernameArray;
 
	}
}

and i have one like that but just for password.
when i try to call it in my other class like this:

 
import java.util.*;
public class Login2Darray
 
{
    public static void main(String [] args){
 
		  String[] usernameInfo=UsernameArrayHolder.UsernameArray; // i call the other class
 
		  int i = 0;
 
 
 
		  Scanner sc=new Scanner(System.in);
 
        System.out.println("Username: ");
 
           String UsernameInput = sc.next();
 
		  System.out.println("Password: ");
 
           String PasswordInput = sc.next();
 
 
 
				for (i=0; i<UsernameArray.length; i++){
 
					if((UsernameInput.equals(UsernameArray[i]) && PasswordInput.equals(PasswordArray[i]))){
 
								System.out.println("You are logged in");
								//skriv i værdi til tekst fil
								i = UsernameArray.length;
					}	
				}//end of for loop
 
    }
}

the problem is it doesn't seem to work. am i calling it right? and if not how am i supposed do?

Rather than "it doesn't seem to work" it's better to say what you did and what happened when you did that. Eg that you compiled a program and recieved some particular compiler message.

Remember that you don't call classes, you call methods. And methods are, typically, methods of a particular instance of a class. So, in your main() method first create an instance of the UsernameArrayHolder class using "new", then call the method you want as a method of that particular instance. It is possible to have methods that "belong" in some sense to a class rather than to a specific instance: socalled static methods, but these are best avoided to begin with.

so i should make it like this: when i call my method?

UsernameArrayHolder username = new UsernameArrayHolder();
PasswordArrayHolder password = new PasswordArrayHolder();
username.UsernameArrayHolder();
password.PasswordArrayHolder();

but when i do that it still says it can't find my UsernameArray :s

What is the code, and what is the compiler message? You have introduced the PasswordArrayHolder class right out of the blue. Work one step at a time.

Also I notice you have a UsernameArrayHolder() method in the UsernameArrayHolder class. This is confusing at best. If it supposed to be a method call it something else and start it with a lower case letter. If it is supposed to be a constructor then remember that it doesn't return anything.

it is suppose to be a constructer call because I want to be able to use the entire array. but i have no idea how to make that call :S

OK. But if it is a constructor then it does not return anything. Some other method of the class will be used to return whatever it is you want to return.

Are you using a textbook? Because defining classes and using the constructors and methods they define should be explained in detail with examples.