java关于判断证件对错题！ACM！！新手求助！按道理应该输出ALL pass

Question

import java.util.*;public class Main{ public static void main(String[] args)  { Scanner sc=new Scanner(System.in); int n=sc.nextInt(); char[] a={7,9,10,5,8,4,2,1,6,3,7,9,10,5,8,4,2}; //int[] z={0,1,2,3,4,5,6,7,8,9,10}; //String m="10X98765432"; char[] m={'1','0','X','9','8','7','6','5','4','3','2'}; String[] f=new String[n]; int k=0,p,sum; for(int i=1;i<=n;i++) { p=0; sum=0; String Id=sc.next(); for(int j=0;j<Id.length()-1;j++) { if(!(Id.charAt(j)>='0' && Id.charAt(j)<='9')) { p=1; f[k]=Id; k++; break; } } System.out.println("p="+p); System.out.println("k="+k); if(p!=1) { for(int j=0;j<Id.length()-1;j++) { int b=Id.charAt(j)-'0'; sum+=b*a[j]; } sum=sum%11; System.out.println("模="+sum); int b=(int)Id.charAt(17)-'0'; System.out.println("b="+b); System.out.println("m="+m[sum]); int c=(int)m[sum]-'0'; System.out.println("c="+c); if(c!=b); { f[k]=Id; k++; } } } if(k==0) { System.out.println("All passed"); } else { for(int i=0;i<k;i++) { System.out.println(f[i]); } } }}

Answer 1

if(c!=b);你这后面多了个分号