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question please help me

0 votes
asked May 10, 2020 by Moza Muslem Salim Rashid Al Tobi (120 points)

Careers Online is setting up their website. They need a strong code to validate the password given by the user while registering. The developer has designed a few rules for the password. Help him to write the Java program that can validate the input password. 1) The password must exceed 10 characters. [2] 2) The password characters must not contain capital letters or small letters, it may contain a combination of digits and any special characters (#, $, @, &, *). [3] 3) The password must start with a digit but the digit must not be 0. [2] 4) The password must end with the special character but not with @. [2] 5) If any one of the rules is not satisfied, prompt the user to type the password again. [2] 6) If all the rules are satisfied then display a “Password Saved” message.

1 Answer

0 votes
answered May 26, 2020 by GuruGokul (140 points)
import java.util.Scanner;

public class Password {

public static boolean validPwd(String pwd) {

int validity = 0;

char first = pwd.charAt(0);

char last = pwd.charAt(pwd.length()-1);

if(pwd.length()<10) {

validity = 1;

}

if(validity == 0) {

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

if(Character.isAlphabetic(pwd.charAt(i))) {

validity = 1;

break;

}

}

if(validity == 0) {

boolean firstch = !Character.isDigit(last)&& !Character.isAlphabetic(last);

if(firstch && last != '@') {

validity = 0;

}

else

validity = 1;

}

if(validity == 0) {

boolean digit = first!='0' && Character.isDigit(pwd.charAt(0));

if(digit == true)

validity = 0;

else

validity = 1;

}

}

if(validity !=0 )

return false;

else

return true;

}

public static void main(String[] args) {

Scanner sc = new Scanner(System.in);

boolean accept = false;

while(accept == false) {

System.out.println("Enter valid password:");

String pwd = sc.nextLine();

accept = validPwd(pwd);

}

if(accept==true)

System.out.println("Password Saved");

sc.close();

}

}
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