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);
        // 注意 hasNext 和 hasNextLine 的区别
        while (in.hasNextLine()) { // 注意 while 处理多个 case
            String a = in.nextLine();
            
            a = a + "00000000";
            char[] charArray = a.toCharArray();
            for (int i = 0; i < charArray.length-8; i += 8) {
                StringBuilder sb = new StringBuilder();
                for (int j = i; j < i + 8; j++) {
                    sb.append(charArray[j]);
                }
                System.out.println(sb);
            }
        }
    }}