Example: Print Spiral Pattern in Java language

// Print Spiral Pattern in Java language
import java.util.Scanner;

public class Main {

    public static int R = 3;
    public static int C = 6;

    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);

        int[][] arru = {
            { 31, 32, 33, 34, 35, 36 },
            { 47, 48, 49, 40, 41, 42 },
            { 53, 54, 55, 56, 57, 58 }
        };

        System.out.println("-----The spiral pattern is-----");
        // This will print the spiral pattern
        spiralPrint(R, C, arru);
        System.out.print("\n");
    }

    public static void spiralPrint(int m, int n, int[][] arru) {
        int i, k = 0, l = 0;

        // k - starting row index 
        // m - ending row index 
        // l - starting column index 
        // n - ending column index 
        // i - iterator 

        while (k < m && l < n) {
            // This will print the first row from the remaining rows
            for (i = l; i < n; ++i) {
                System.out.print(arru[k][i] + ", ");
            }
            k++;

            // This will print the last column from the remaining columns
            for (i = k; i < m; ++i) {
                System.out.print(arru[i][n - 1] + ", ");
            }
            n--;

            // This will print the last row from the remaining rows
            if (k < m) {
                for (i = n - 1; i >= l; --i) {
                    System.out.print(arru[m - 1][i] + ", ");
                }
                m--;
            }

            // This will print the first column from the remaining columns
            if (l < n) {
                for (i = m - 1; i >= k; --i) {
                    System.out.print(arru[i][l] + ", ");
                }
                l++;
            }
        }
    }
}