密码是相同的，但是＆＃39; 1234＆＃39; ！=＆＃39; 1234＆＃39;

Question

我正在尝试将用户密码插入MySQL数据库，当我尝试通过重复密码确认密码时，两个密码彼此不相同，所以我无法插入密码：

    password = new JPasswordField();
    repeatPassword = new JPasswordField();

    (...)

    char[] passwdValue=password.getPassword();
    char[] passwdRepeatValue=repeatPassword.getPassword();

    (...)

    if (usernameValue!=null && passwdValue!=null 
        && passwdValue==passwdRepeatValue // error! e.g.: '1234' != '1234'
        && emailValue!=null
        && nameValue!=null && lastNameValue!=null){

        (...)

        String sqlQuery="INSERT INTO `db`.`users` (`username`, `password`, `email`,
        `name`, `lastname`, `bornday`) " + "VALUES ('" + usernameValue + "', '" + 
        passwdValue + "', '" + emailValue + "', '" + nameValue + "', '" + 
        lastNameValue + "', '" + yearValue + "-" + monthOrder + "-" + dayValue + "');";

        (...)

    }

你能帮帮我吗？非常感谢你:)）