Given a matrix of 1s and 0s, determine the adjacency of the 1s with each other. (Created to solve http://stackoverflow.com/questions/34524153/algorithm-or-java-code-for-searching-patterns-in-matrix)

AdjacencyChecker.java

import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;

public class AdjacencyChecker {

    public static void main(String[] args) {
        int[][] matrix = {{1,1,1,0,0},{1,0,0,0,1},{1,1,1,0,0},{0,0,0,1,1}};
        List<Integer> list = new ArrayList<>();
        for (int i = 0; i < matrix.length; i++) {
            for (int j = 0; j < matrix[i].length; j++) {
                list.add(matrix[i][j]);
                System.out.print(matrix[i][j]+" ");
            }
            System.out.println();
        }
        System.out.println();

        int adjustment = 0;
        if (list.contains(0)) {
            for (int i = 0; i < list.size(); i++) {
                if (list.get(i) == 1) {
                    list.add(list.remove(i));
                    i--;
                    adjustment++;
                } else {
                    break;
                }
            }
        }

        int count = 0;
        for (Integer a : list) {
            if (a == 1) {
                count++;
            } else {
                if (count > 0) {
                    System.out.println("Group of " + count + " adjacent 1's");
                }
                count = 0;
            }
        }
        if (count > 0) {
            System.out.println("Group of " + count + " adjacent 1's");
        }

        for (int num : Arrays.asList(5, 2, 2, 1)) {
            int count2 = 0;
            int start = -1;
            for (int i = 0; i < list.size(); i++) {
                if (list.get(i) == 1) {
                    if (start == -1) {
                        start = i;
                    }
                    count2++;
                } else {
                    start = -1;
                    count2 = 0;
                }
                if (count2 == num) {
                    System.out.println("Group of " + num + " adjacent 1's starting at " + ((start + adjustment) / 5) + "," + ((start + adjustment) % 5));
                    for (int j = start; j < start + count2; j++) {
                        list.set(j, 0);
                    }
                    break;
                }
            }
        }
    }
}