Password Rule using Wrapper Class

Hello!

This is my first post here, I hope I am not posting it in the wrong section.

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?

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 :

Java Code:

import java.util.Scanner;
public class Assignment1 
{
    private static String password=null;
    
    private static void password_input()
    {
        
        Scanner input = new Scanner(System.in);
        password = input.nextLine();
        
    }
    
   private static void length_checking()
   {
       
       int x;
       x = password.length();
       if(x<8)
       {
           display();
           System.out.println("-Length of Password is "+x+", which is "+(8-x)+" short than the minimum limit 8! ");
           specialcharacters_checking();
           only_one_numericvalue_checking();
           minimum_one_uppercase_letter();
       }
       else if(x>12)
       {
             display();
             System.out.println("-Length of Password is "+x+", which is "+(x-12)+" long than the maximum limit 12! "); 
             specialcharacters_checking();
             only_one_numericvalue_checking();
             minimum_one_uppercase_letter();
             
       }
       else 
       {
       display();
       specialcharacters_checking();
       only_one_numericvalue_checking();
       minimum_one_uppercase_letter();
       
       }
    }
   
   
   
      private static void specialcharacters_checking()
   {
       boolean check1;
       int i=0,check2=0;
       for(int x=0;x<password.length();x++)
        {
            
       check1=Character.isLetterOrDigit(password.charAt(x));
       
       if(check1==false)
           
            {
                
                check2=1;               
                
            }             
        }
       if(check2==1)
           System.out.println("-It has the following special characters which are not allowed :");
       for(int x=0;x<password.length();x++)
        {
            
       check1=Character.isLetterOrDigit(password.charAt(x));
       
       if(check1==false)
           
            {
                
                System.out.println(password.charAt(x));
                
            }
                
        }
       
   }
      
  
      
      
      private static void only_one_numericvalue_checking()
      {
          boolean check;
          int i=0;
          for(int x=0;x<password.length();x++)
          {
             check=Character.isDigit(password.charAt(x)); 
             if(check==true)
             {
             i++;
             if(i>1)
             {
                 System.out.println("-It has more than 1 numeric value!");
                 break;
             }
                        
             }
             
             
          }
          if(i==0)
             {
                 System.out.println("-It has no numeric value!");
             }
      }
      
      
      private static void minimum_one_uppercase_letter()
      {
           boolean check;
          int i=0;
          for(int x=0;x<password.length();x++)
          {
             check=Character.isUpperCase(password.charAt(x)); 
             if(check==true)
             {
             i++;          
             }          
             
          }
          if(i==0)
             {
                 System.out.println("-It has no uppercase LETTER!");
                 
             }
          
         
         
      }
      
    private static void display()
    {
        System.out.println("Password entered is : "+password);
    }
    
   
    

    public static void main(String[] args) 
    {
        System.out.println("\t\t\t\t****** ||Registration|| ****** \n Length of Password 8-12, with no special characters, including minimum one uppercase letter, and only one numeric value.\n Enter your password : ");
        password_input();
        length_checking();
        
        
    }
    
}

Thanks in advance!