PAT乙级-写出这个数

package 写出这个数; import java.util.Scanner; public class Main { public static void main(String[] args) { Scanner s=new Scanner(System.in); String str=s.next(); int len=str.length();  String[] a={"ling","yi","er","san","si","wu","liu","qi","ba","jiu"}; int sum=0; for(int i=0;i<len;i++) { sum=sum+(str.charAt(i)-48); } String str1=sum+""; int len1=str1.length(); for(int i=0;i<len1-1;i++) { System.out.print(a[(str1.charAt(i)-48)]+" "); } System.out.print(a[str1.charAt(len1-1)-48]); } }