Extracting elements from a 2D array in another class

[Natasha Reaney]

Not sure if anyone will be able to help me with this but I am completely stuck so I figured it is worth a shot...

I am writing a program for an assignment and one of the steps is to use the index variable (created under a method called NTS.mapLetterIndexOf) and the direction constants (WEST, EAST, NORTH and
SOUTH) (which I declared and created in a class called NTS) to extract an element from the 2D array into the Main class. My teacher provides this example for extracting: westMap = adjMapLetters[mapPosition][WEST]. Only I have tried that and it does not work. Here is most of the code:

Main.java:

int position = NTS.mapLetterIndexOf(ntsLetter);
		System.out.printf("The letter %s was found at position %d\n", ntsLetter, position);
		
		// ===========================================================
		// Extract the adjacent mapsheets from the adjMapLetters array.
		// ===========================================================

		westMap = adjMapLetters[position][WEST];
		eastMap = adjMapLetters[position][EAST];
		northMap = adjMapLetters[position][NORTH];
		southMap = adjMapLetters[position][SOUTH];

NTS.java:

public static final int CENTER = 0;
	public static final int WEST = 1;
	public static final int EAST = 2;
	public static final int NORTH = 3;
	public static final int SOUTH = 4;

... other code...

public static String[] ntsLetters = {"A", "B", "C", "D", "E", "F", "G", "H", "I", "J", "K", "L", "M", "N", "O", "P"};
	
	public static int mapLetterIndexOf(String mapLetter)
	{
		int position = -1; //Default value is -1, meaning you did not find the letter in the array. 
		
		for(int i = 0; i < ntsLetters.length; i++)
		{
			if(mapLetter.toUpperCase().equals(ntsLetters[i]))//If there is a match, reset the position to the index, otherwise it will the position will return -1. 
			{
				position = i;
			}
		}
		return position;
	}
	
	public static String[][] adjMapLetters =
    {
        {
            "A", "B", "D", "H", "P"
        },
        {
            "B", "C", "A", "G", "O"
        },
        {
            "C", "D", "B", "F", "N"
        },
        {
            "D", "A", "C", "E", "M"
        },
        {
            "E", "H", "F", "L", "D"
        },
        {
            "F", "E", "G", "K", "C"
        },
        {
            "G", "F", "H", "J", "B"
        },
        {
            "H", "G", "E", "I", "A"
        },
        {
            "I", "J", "L", "P", "H"
        },
        {
            "J", "K", "I", "O", "G"
        },
        {
            "K", "L", "J", "N", "F"
        },
        {
            "L", "I", "K", "M", "E"
        },
        {
            "M", "P", "N", "D", "L"
        },
        {
            "N", "M", "O", "C", "K"
        },
        {
            "O", "N", "P", "B", "J"
        },
        {
            "P", "O", "M", "A", "I"
        }
    };
}

I need to figure out how I can extract the element from the array in the NTS class into the Main class. Any thoughts?
It is this part of the code that doesn't work.

westMap = adjMapLetters[position][WEST];
		eastMap = adjMapLetters[position][EAST];
		northMap = adjMapLetters[position][NORTH];
		southMap = adjMapLetters[position][SOUTH];

[/code]

Thank you!!!