JAVA 18位身份证号码校验码的算法

public static char doVerify（String id）
{
char pszSrc[]=id.toCharArray（）;
int iS = 0;
int iW[]={7, 9, 10, 5, 8, 4, 2, 1, 6, 3, 7, 9, 10, 5, 8, 4, 2};
char szVerCode[] = new char[]{"1","0", "X", "9", "8", "7", "6", "5", "4", "3", "2"};
int i;
for（i=0;i<17;i++）
{
iS += （int）（pszSrc[i]-"0"） * iW[i];
}
int iY = iS%11;
return szVerCode[iY];
}