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 sc = new Scanner(System.in);
        String s = sc.nextLine();

        // 注意 hasNext 和 hasNextLine 的区别

        int length = s.length();
        boolean ok = length % 8 == 0;
        int step = length / 8;
        StringBuilder sub = new StringBuilder();
        for (int i = 0; i < step; i++) {
            sub = new StringBuilder(s.substring(i*8, i*8 + 8));
            System.out.println(sub);
        }
        if (!ok){

            sub = new StringBuilder(s.substring(step * 8));
            for(int i=0;i<8-length%8;i++){
                sub.append("0");
            }
            System.out.println(sub);
        }
    }
}