题解 | #字符串分隔#

import java.util.Scanner;
import java.util.TreeSet;

/**
 * @ProjectName: leetcode
 * @Package: com.company.niuke
 * @ClassName: Main
 * @Author: Administrator
 * @Description: 牛客网测试
 * @Date: 2022/2/11 20:30
 * @Version: 1.0
 */
public class Main {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            StringBuilder str = new StringBuilder(scanner.nextLine());
            if (str.length() <= 8) { //字符长度小于等于8就进行拼接
                append(str);
            } else { //字符长度大于8就进行分割
                subString(str.toString());
            }
        }
    }

    private static void append(StringBuilder str) {
        int length = str.length(); //保存字符的原有长度，决定了要拼接几个0；
        for (int i = 0; i < 8 - length; i++) {
            str.append('0');
        }
        System.out.println(str); //直接输出
    }

    private static void subString(String str) {
        System.out.println(str.substring(0, 8)); //输出前8个字符
        if (str.length()-8 > 8) { //如果输出8个字符之后，剩余字符的长度依然大于8，则继续分割
            subString(str.substring(8, str.length()));
        } else { //否则则进行拼接
            append(new StringBuilder(str.substring(8, str.length())));
        }
    }
}