题解 | 字符串分隔

import java.util.Scanner;

// 注意类名必须为 Main, 不要有任何 package xxx 信息
public class Main {
    public static void main(String[] args) {
        Scanner in = new Scanner(System.in);
        String s = in.nextLine();
        int len = s.length();
        char[] arry;
        if (len % 8 != 0) {
            arry = new char[(s.length() / 8) * 8 + 8];
        } else {
            arry = new char[s.length()];
        }
        // for (int i = 1; i <= arry.length; i++) {
        //     arry[i-1]='0';
        // }

        // 注意 hasNext 和 hasNextLine 的区别
        for (int i = 0; i < arry.length; i++) {
            arry[i] = i<s.length()?s.charAt(i):'0';
        }
        for (int i = 1; i <= arry.length; i++) {
            if (i % 8 != 0) {
                System.out.print(arry[i - 1]);
            } else {
                System.out.println(arry[i - 1]);
            }
        }

    }
}