Coding Solution 03

Write a Java program to check if a given String is a Valid Password or Not.

Code:

import java.util.Scanner;

public class Exercise11 {

    

public static final int PASSWORD_LENGTH = 8;

public static void main(String[] args) {

        Scanner input = new Scanner(System.in);

        System.out.print(

                "1. A password must have at least eight characters.\n" +

                "2. A password consists of only letters and digits.\n" +

                "3. A password must contain at least two digits \n" +

                "Input a password (You are agreeing to the above Terms and Conditions.): ");

        String s = input.nextLine();

        if (is_Valid_Password(s)) {

            System.out.println("\nPassword is valid: " + s);

        } else {

            System.out.println("\nNot a valid password: " + s);

        }

    }

    public static boolean is_Valid_Password(String password) {

        if (password.length() < PASSWORD_LENGTH) return false;

        int charCount = 0;

        int numCount = 0;

        for (int i = 0; i < password.length(); i++) {

            char ch = password.charAt(i);

            if (is_Numeric(ch)) numCount++;

            else if (is_Letter(ch)) charCount++;

            else return false;

        }

        return (charCount >= 2 && numCount >= 2);

    }

    public static boolean is_Letter(char ch) {

        ch = Character.toUpperCase(ch);

        return (ch >= 'A' && ch <= 'Z');

    }

    public static boolean is_Numeric(char ch) {

        return (ch >= '0' && ch <= '9');

    }

}

Output:

Output 1

Output 2

Link: https://ide.geeksforgeeks.org/9HMOXBsQdJ

Link: https://ide.geeksforgeeks.org/t83WyghRCD




I hereby confirm that the coding solution is written by me and complied & run at GreeksForGreeks Online Complier.

#MAR #MARACTIVITY #MARPOINTS #MAKAUT #SKFGI #CODINGSOLUTION

#mar #maractivity #marpoints #makaut #skfgi #codingsolution