Jungol (Java) - 1314 : 문자사각형2

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JUNGOL

 

import java.util.*;

public class Main {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int n;
        n = sc.nextInt();
        char arr[][] = new char[n][n];
        char num = 'A';
        char num2;

        for (int i = 0; i < n; i++) {
            if (i % 2 == 0) {
                for (int j = 0; j < n; j++) {
                    arr[j][i] = num;
                    num++;
                    if (num > 'Z') {
                        num = 'A';
                    }
                }
            } else {
                for (int j = n - 1; j >= 0; j--) {
                    arr[j][i] = num;
                    num++;
                    if (num > 'Z') {
                        num = 'A';
                    }
                }
            }
        }

        for (int i = 0; i < n; i++) {
            for (int j = 0; j < n; j++) {
                System.out.print(arr[i][j] + " ");
            }
            System.out.println();
        }
    }
}