Check Password Rule Using Wrapper Class

I have to use wrapper class for this assignment. I need to know if my code is more like object oriented or not and am I using the wrapper class properly here? Let me know if I can make this code better.

I also need to know if I can mask this password input (STRING) using NetBeans/Eclipse IDE? I did search, but I found the console method.

Password rule is as followed : Length of Password 8-12, with no special characters, including minimum one uppercase letter, and only one numeric value.

Here is the code :

import java.util.*;
import java.lang.String;
import java.lang.Character;

public class CheckingPassword {
public static void main(String[] args) {
Scanner input = new Scanner(System.in);
System.out.print("Please enter a Password: ");
String password = input.next();

[Code] .....