Design and implement a Java program name it PasswordTest tha

Design and implement a Java program (name it PasswordTest) that accepts a string from the user and evaluates it as a password, giving it a valid or invalid verdict A good password will be at least 8 characters and includes at least one lower-case letter, at least one upper-case letter, at least one digit, and at least one character that is neither a letter nor a digit. Your program will need to check each character in the string in order to render a verdict. For example, CS1301/99 is invalid password. The program should display the entered password and the program\'s Judgment on it. For example, Entered Password: CS1301/99 Verdict: Invalid Document your code, and organize and space out your outputs as shown.

Solution

PasswordTest.java

import java.util.Scanner;

public class PasswordTest {

  
   public static void main(String[] args) {
       Scanner scan = new Scanner(System.in);
       System.out.println(\"Enter password: \");
       String password = scan.next();
       boolean status = false;
       int lowerLetterCount = 0;
       int upperLetterCount = 0;
       int digitCount = 0;
       int otherLetterCount = 0;
      
       if(password.length() >= 8){
       for(int i=0; i<password.length(); i++){
           char ch = password.charAt(i);
          
           if(ch >= \'a\' && ch <= \'z\'){
               lowerLetterCount++;
           }
           else if(ch >= \'A\' && ch <= \'Z\'){
               upperLetterCount++;
           }
           else if(ch >= \'1\' && ch <= \'9\'){
               digitCount++;
           }
           else{
               otherLetterCount++;
           }
       }
       }
       if(lowerLetterCount > 0 && upperLetterCount > 0 && digitCount > 0 && otherLetterCount > 0){
           status = true;
       }
       String s = \"\";
       if(status){
           s = \"Valid\";
       }else{
           s = \"Invalid\";
       }
       System.out.println(\"Entered Password: \"+password );
       System.out.println(\"Verdict: \"+s);

   }

}

Output:

Enter password:
CS1301/99
Entered Password: CS1301/99
Verdict: Invalid