JAVA密码处理,主要是字符串对比处理

在后台经常会遇到的密码处理,写一个博客记录一下,主要是用到了String.matches的字符串对比

 

//密码处理

import java.util.Scanner;

public class Practice1162 {
    public static void main(String[] args) {
        Scanner sc = new Scanner(System.in);
        int hang = sc.nextInt();
        for (int i = 0; i < hang; i++) {
            String password = sc.next();

            int safelevel = 0;                  //安全级别
            int length = password.length();
            if ( length > 16 || length < 8)
                System.out.println("NO");
            else {
                int moshi = 0;
                if (password.matches("(.*)[A-Z](.*)")) {        //字符串中有A-Z
                    safelevel++;
                }
                if (password.matches("(.*)[a-z](.*)")) {        //字符串中a-z
                    safelevel++;
                }
                if (password.matches("(.*)[0-9](.*)")) {        //字符串中含有0-9
                    safelevel++;
                }
                if (password.matches("(.*)[~!@#$%^](.*)")) {    //字符串含有~!@#$%^
                    safelevel++;
                }
                if (safelevel >= 3) {
                    System.out.println("YES");
                } else {
                    System.out.println("NO");
                }
            }
        }
    }
}