booleanRectangle Homework

package com.company;

public class Main {

    public static void main(String[] args) {
        int[][] arr = {{1, 2, 3}, {1, 2, 3, 4}, {4, 5, 6, 7}};
        int[] arr2 = {1, 2, 3, 4, 5, 6, 7};
        System.out.println(subArray(arr, arr2));
        boolean array[][] = new boolean[5][10];
        boolRectangle(array);
        boolPrintArr(array);
    }

    public static int subArray(int[][] arr, int[] arr2) {
        int index = -1;
        int counter = 0;
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++) {
                if (arr[i][j] == arr2[counter] && counter < arr2.length - 1) {
                    counter++;
                    index = i;
                }
            }
            counter = 0;
        }
        return index;
    }

    public static void printArr(boolean[] arr) {
        for (int i = 0; i < arr.length; i++) {
            if (i % 2 == 0)
                arr[i] = true;
            System.out.println(arr[i]);
        }
    }

    public static void boolRectangle(boolean[][] arr) {
        for (int col = 0; col < arr.length; col++) {
            for (int row = 0; row < arr[col].length; row++) {
                if (row == 0 || col == arr.length - 1 || col == 0 || row == arr[col].length - 1)
                    arr[col][row] = true;
            }
        }
    }

    public static void boolPrintArr(boolean[][] arr) {
        for (int i = 0; i < arr.length; i++) {
            for (int j = 0; j < arr[i].length; j++) {
                System.out.print(arr[i][j] ? "*": " ");
            }
            System.out.println("");
        }
    }
}