java测试生成中征码(数字)

public class Main {
    
    
public static void main(String[] args) {
        //企业中征码为 16位  后2位位验证码
        String checkZZM = checkZZM( String.valueOf((int)(Math.random()*10+1)) + String.valueOf(System.currentTimeMillis()) );
        System.out.println("企业中征码为：" + checkZZM);
    }

    //校验中征码
    public static String checkZZM(String value) {
        //判断中征码前14位
        if (value.length()!=14) {
            return "";
        }
        //前14位转化为char数组
        char[] idCode = value.substring(0, 14).toCharArray();
        //加权因子
        int[] weight_factor = new int[]{1, 3, 5, 7, 11, 2, 13, 1, 1, 17, 19, 97, 23, 29};
        int len = idCode.length;
        int num = 0;
        int temp = 0;
        //循环取和
        for (int i = 0; i < len; i++) {
            //字母转数字
            if (idCode[i] >= 'A' && idCode[i] <= 'Z') {
                temp = (int) idCode[i] - 55;
            } else {
                temp = (int) idCode[i] - 48;
            }
            //求和
            num = num + temp * weight_factor[i];
        }
        //取余+1
        int resisue = num % 97 + 1;
        System.out.println("生成2位验证码为："+resisue);
        //拼接验证码
        value = value + resisue;
        //判断中征码是否为16位
         if (value.length()!=16) {
            return "";
        }
        return value;
    }
}