PasswordGenerator

import java.util.Random;
import java.util.Scanner;

public class PassGenerator {
    public static void main(String[] args) {
        Scanner scanner = new Scanner(System.in);

        System.out.println("Enter password length");
        int length = Integer.parseInt(scanner.nextLine()); // password length
        System.out.println("Enter number of characters");
        int numOfChars = Integer.parseInt(scanner.nextLine());
        System.out.println("Enter number of 'numbers'");
        int numOfNums = Integer.parseInt(scanner.nextLine());
        System.out.println("Enter number of symbols");
        int numOfSymbols = Integer.parseInt(scanner.nextLine());

        if (numOfChars + numOfNums + numOfSymbols > length) {
            System.out.println("Warning!! Your password length is " + length);
            return;
        }
        System.out.println(generatePswd(length, numOfChars, numOfNums, numOfSymbols));
    }

    static char[] generatePswd(int passLength, int numOfChars, int numOfNums, int numOfSymbols) {
        System.out.println("Your Password:");
        String chars = "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz";
        String nums = "0123456789";
        String symbols = "!@#$%^&*_=+-/€.?<>)";

        Random rnd = new Random();

        char[] password = new char[passLength];
        int index = 0;

        for (int i = 0; i < passLength; i++) {
            password[i] = chars.charAt(rnd.nextInt(chars.length()));
        }
        for (int j = 0; j < numOfChars; j++) {
            password[j] = chars.charAt(rnd.nextInt(chars.length()));
        }
        for (int k = numOfChars; k < numOfNums + numOfChars; k++) {
            password[k] = nums.charAt(rnd.nextInt(nums.length()));
        }
        for (int l = numOfNums + numOfChars; l < passLength; l++) {
            password[l] = symbols.charAt(rnd.nextInt(symbols.length()));
        }
        return password;
    }
}