华为机试题，对长度为8的字符串取余并补充0

import java.util.Scanner;

public class SpiltString8 {
    private static final int LENGTH = 8;

    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);
        while (scanner.hasNext()) {
            //读取所有
            String str = scanner.nextLine();
            if (str.trim().length() == 0 || str.length() > 100) {
                System.err.println("输入长度不符合规则");
            }
            //取整
            int num = str.length() / LENGTH;
            for (int i = 0; i <= num - 1; i++) {
                System.out.println(str.substring(i, i + LENGTH));
            }
            int yu = str.length() % LENGTH;
            if (yu > 0) {
                StringBuilder sb = new StringBuilder();
                for (int i = 0; i < LENGTH - yu; i++) {
                    sb.append("0");
                }
                System.out.println(str.substring(num * LENGTH) + sb);
            }
        }
    }
}