Check password

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;

public class Pr4PasswordValidator {
    public static void main(String[] args) throws IOException {
        BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
        String password = reader.readLine();

        if (checkNumbersOfCharaptes(password) && checkAllowedSymbols(password) && checkNumberOfDigits(password)) {
            System.out.println("Password is valid");
            return;
        }
        if (!(checkNumbersOfCharaptes(password))) {
            System.out.println("Password must be between 6 and 10 characters");
            if (!(checkNumberOfDigits(password))) {
                System.out.println("Password must have at least 2 digits");
            }
            return;
        }
        if (!(checkAllowedSymbols(password))) {
            System.out.println("Password must consist only of letters and digits");
        }
        if (!(checkNumberOfDigits(password))) {
            System.out.println("Password must have at least 2 digits");
        }
    }

    private static boolean checkNumbersOfCharaptes(String password) {
        boolean checkNumbersOfCharaptes = false;
        if (password.length() >= 6 && password.length() <= 10) {
            checkNumbersOfCharaptes = true;
        }
        return checkNumbersOfCharaptes;
    }

    private static boolean checkAllowedSymbols(String password) {
        boolean checkSymbols = false;
        int countLetters = 0;
        int coutDigits = 0;
        for (int i = 0; i < password.length(); i++) {
            //Digits
            int digit = password.charAt(i) - '0';
            if (digit >= 0 && digit <= 9) {
                coutDigits++;
            }
            //Letters
            if ((password.charAt(i) >= 65 && password.charAt(i) <= 90) ||
                    (password.charAt(i) >= 97 && password.charAt(i) <= 122)) {
                countLetters++;
            }
        }
        //Result
        if (countLetters > 0 && coutDigits > 0) {
            checkSymbols = true;
        }
        return checkSymbols;
    }

    private static boolean checkNumberOfDigits(String password) {
        boolean checkNumberOfDigits = true;
        int coutDigits = 0;
        for (int i = 0; i < password.length(); i++) {
            if (password.charAt(i) >= 48 && password.charAt(i) <= 57) {
                coutDigits++;
            }
        }
        if (coutDigits <= 2) {
            checkNumberOfDigits = false;
        }
        return checkNumberOfDigits;
    }
}