使用字符串切割
import java.util.*; public class Main{ public static void main(String [] args){ getNewString(); } public static void getNewString(){ Scanner scan = new Scanner(System.in); while(scan.hasNext()){ String input = scan.nextLine(); while(input.length()%8 != 0){ input += "0"; } while(input.length() > 0){ System.out.println(input.substring(0,8)); input = input.substring(8); } } } }