按要求分解字符串，输入两个数M，N；M代表输入的M串字符串，N代表输出的每串字符串的位数，不够补0。例如：输入2,8， “abc” ，“123456789”，则输出为“abc00000”,“12345678“,”90000000”

 import java.util.ArrayList;
 import java.util.Scanner;

 public class Text {

     @SuppressWarnings("resource")
     public static void main(String[] args) {
         Scanner scanner = new Scanner(System.in);
         int M = scanner.nextInt();//M代表输入的M串字符串
         int N=scanner.nextInt();//N代表输出的每串字符串的位数
           ArrayList<String> arrayList = new ArrayList<String>();
           ArrayList<String> arrayList1 = new ArrayList<String>();
           String[] arr=new String[M] ;
           String a=scanner.next();
           arr=a.split(",");
           for (int i = 0; i < arr.length; i++) {
             arrayList.add(arr[i]);
         }
           for (int i = 0; i < arrayList.size(); i++) {
             if (arrayList.get(i).length() < N) {
                 String temp0="" ;
                 for (int j = 0; j < N - arrayList.get(i).length(); j++) {
                     temp0 = temp0 + "0";
                 }
                 arrayList1.add(arrayList.get(i) + temp0);
             }
             if (arrayList.get(i).length() >N) {
                 String temp=arrayList.get(i);
                 int t=(int) Math.ceil((double)temp.length()/N);
                 for (int j = 0; j < t; j++) {
                     if (j==t-1) {
                         if ((temp.substring(N*j)).length()<N) {
                             String temp1 = "";
                             for (int s = 0; s < N - (temp.substring(N*j)).length(); s++) {
                                 temp1 = temp1 + "0";
                             }
                             arrayList1.add(temp.substring(N*j)+temp1);
                         }else {

                             arrayList1.add(temp.substring(N*j));
                         }
                     }else {
                         arrayList1.add(temp.substring(N*j, N*(j+1)));
                     }

                 }
               }
             }

         for (String string : arrayList1) {
             System.out.print(string+" ");
         }
     }

 }