身份证分组

 1 import java.util.Scanner;
 2 public class Main{
 3     public static void main(String[] args){
 4         Scanner scan = new Scanner(System.in);
 5         scan.useDelimiter("\n");
 6         String str = scan.next();   //接受的字符串，可能含有空格
 7         char c[] = str.toCharArray();
 8         char c1[] = new char[c.length];
 9         int j=0;
10         for(int i=0;i<c.length;i++){
11             if(c[i] != ‘ ‘){
12                 c1[j] = c[i];
13                 j++;
14             }
15         }
16         String str1 = new String(c1).trim();//得到没有空格的字符串
17         if(str1.length()<=6){
18             System.out.println(str1);
19         }
20         if(str1.length()>6 && str1.length()<=14){
21             String str2 = str1.substring(0, 6);
22             String str3 = str1.substring(6, str1.length());
23             System.out.println(str2 + " " + str3);
24         }
25         if(str1.length()>14){
26             String str4 = str1.substring(0, 6);
27             String str5 = str1.substring(6, 14);
28             String str6 = str1.substring(14, str1.length());
29             System.out.println(str4 + " " + str5 + " " + str6);
30         }
31     }
32 }