Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

public class Main {
    public static final boolean isIdCard(String str) {
        if (isBlank(str)) {
            return false;
        }

        return str.matches("[0-9]{17}X") || str.matches("[0-9]{18}");
    }

    private static boolean isBlank(String str) {
        if (str == null || str.matches("[ ]{0,}")) {
            return true;
        }
        return false;
    }
}