Java程序打印给定整数的方形图案

打印给定整数的正方形模式，Java代码如下 −

示例

import java.util.*; import java.lang.*; public class Demo{ public static void main(String[] args){ Scanner my_scan = new Scanner(System.in); System.out.println("Enter a range"); int my_num = my_scan.nextInt(); int my_arr[][] = print_pattern(my_num); int eq_val = 0, sub_val = my_num - 1, n = my_num; int l = 0; if (my_num % 2 == 0) sub_val = my_num - 1; else sub_val = my_num; for (int i = 0; i < n / 2; i++){ for (int j = 0; j < n; j++){ System.out.format("%3d", my_arr[eq_val][j]); } System.out.println(""); l = l + 2; eq_val = l; } eq_val = my_num - 1; for (int i = n / 2; i < n; i++){ for (int j = 0; j < n; j++){ System.out.format("%3d", my_arr[eq_val][j]); } sub_val = sub_val - 2; eq_val = sub_val; System.out.println(""); } } public static int[][] print_pattern(int n){ int my_arr[][] = new int[n][n]; int eq_val = 1; for (int i = 0; i < n; i++){ for (int j = 0; j < n; j++){ my_arr[i][j] = eq_val; eq_val++; } } return my_arr; } }登录后复制