Collect the coins

import java.lang.reflect.Array;
import java.util.ArrayList;
import java.util.List;
import java.util.Scanner;

/**
 * Created by Marina on 23.01.2017 г..
 */
public class CollectTheCoins {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        ArrayList<String> board = new ArrayList<>();

//get the matrix
        for (int row = 0; row < 4; row++) {

            String[] input = scanner.nextLine().split("");

            for (int col = 0; col < input.length; col++) {
                String nextLine = input[col];
                board.add(row, nextLine);
            }
        }

        String[] command = scanner.nextLine().split("");

//some variables for moving on the board
        int currRow = 0;
        int currCol = 0;
        //int pos=0;
        int wallsHit = 0;
        int coinsCollected = 0;
        

//try to catch the exception, otherwise move around board
        for (int pos = 0; pos < command.length; pos++) {
            try {
                if (command[pos].equals("V")) {
                    currRow++;
                } else if (command[pos].equals(">")) {
                    currCol++;
                } else if (command[pos].equals("^")) {
                    currRow--;
                } else if (command[pos].equals("<")) {
                    currCol--;
                }
            } catch (ArrayIndexOutOfBoundsException e) {
                wallsHit++;
            }
//check if there is a coin to collect
            char[] nextLine = board.get(currRow).toCharArray();
            if (nextLine[currCol] == '$') {
                coinsCollected++;
            }
           

        }
//print result
        System.out.printf("Coins collected: %d", coinsCollected);
        System.out.printf("Walls hit: %d", wallsHit);
    }
    }