在後臺經常會遇到的密碼處理,寫一個部落格記錄一下,主要是用到了String.matches的字串對比

//密碼處理

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