Password Checker

import java.util.Scanner;
public class ExecutionFile{
    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        
        System.out.print("Enter Your Password: ");
        String pass = scan.nextLine();
      
        if(pass.length()<8){
            System.out.println("Invalid Password");
        }else{
            boolean uppercase = false;
            boolean lowercase = false;
            boolean digit = false;
            
            for(int i=0;i<pass.length();i++){
                char ch= pass.charAt(i) ;
             
                if(Character.isUpperCase(ch)){
                    uppercase = true;
                }
                if(Character.isLowerCase(ch)){
                    lowercase = true;
                }
                if(Character.isDigit(ch)){
                    digit = true;
               }
            }
            if(!uppercase){
                System.out.println("Atleast 1 Uppercase Letter");
            }
            else if(!lowercase){
                System.out.println("Atleast 1 Lowercase Letter");
            }
            else if(!digit){
                System.out.println("Atleast 1 Digit");
            }
            else
                System.out.println("Valid Password");
        }               
    }
}