password generator. Java

dev017

Aug 6th, 2023

122

Never

Add comment

Not a member of Pastebin yet? Sign Up, it unlocks many cool features!

Java 2.17 KB | None | 0 0

raw download clone embed print report

import java.util.Scanner;
import java.util.Random;
public class PasswordGenerator {
public static void main(String[] args) {
Scanner scanner = new Scanner(System.in);
System.out.print("Enter the length of the password: ");
int length = scanner.nextInt();
System.out.print("incluir números? (Y/N): ");
boolean numbers = scanner.next().equalsIgnoreCase("Y");
System.out.print("incluir letras?? (Y/N): ");
boolean letters = scanner.next().equalsIgnoreCase("Y");
System.out.print("incluir simbolos?? (Y/N): ");
boolean symbols = scanner.next().equalsIgnoreCase("Y");
System.out.print("Incluir letras maiúsculas? (Y/N): ");
boolean uppercase = scanner.next().equalsIgnoreCase("Y");
System.out.println("SENHA GERADA: " + createPassword(length, numbers, letters, symbols, uppercase));
scanner.close();
}
public static String createPassword(int length, boolean numbers, boolean letters, boolean symbols, boolean uppercase) {
String password = "";
Random random = new Random();
while (password.length() < length) {
if (numbers && password.length() < length) {
password += random.nextInt(10);
}
if (letters && password.length() < length) {
password += (char) (random.nextInt(26) + 'a');
}
if (symbols && password.length() < length) {
String punctuation = "!\"#$%&'()*+,-./:;<=>?@[\\]^_`{|}~";
password += punctuation.charAt(random.nextInt(punctuation.length()));
}
if (uppercase && password.length() < length) {
password += (char) (random.nextInt(26) + 'A');
}
}
char[] passwordArray = password.toCharArray();
for (int i = 0; i < passwordArray.length; i++) {
int randomIndex = random.nextInt(passwordArray.length);
char temp = passwordArray[i];
passwordArray[i] = passwordArray[randomIndex];
passwordArray[randomIndex] = temp;
}
return new String(passwordArray);
}
}

Add Comment

Please, Sign In to add comment