Java用户帐户作业分配 - 密码检查

Question

我有一项任务，我们要设置2个用户帐户。为两者设置用户名和密码。设置密码后，系统会要求用户输入两次密码并验证它们是否相同。我们被告知使用哈希代码来验证用户名和密码的字符串值，以便比较字符串而不是内存位置。我的代码可能还有其他问题，但是现在我正在尝试让密码检查工作。它告诉我密码即使它们也不匹配。我确定我做了一些蠢事，所以请善待，我还在学习！

这是我的UserAccount类：

public boolean checkPassword(String password)
{
    if (password == this.password)
        return true;
    else return false;}

public void deactivateAccount()
{
    this.active = false;
}

public String toString() {
    return "The user name is " + username + " and the password is " + password;
}

@Override
public int hashCode() {
    final int prime = 31;
    int result = 1;
    result = prime * result
            + ((password == null) ? 0 : password.hashCode());
    result = prime * result
            + ((username == null) ? 0 : username.hashCode());
    return result;
}

@Override
public boolean equals(Object obj) {
    if (this == obj)
        return true;
    if (obj == null)
        return false;
    if (getClass() != obj.getClass())
        return false;
    UserAccount other = (UserAccount) obj;
    if (password == null) {
        if (other.password != null)
            return false;
    } else if (!password.equals(other.password))
        return false;
    if (username == null) {
        if (other.username != null)
            return false;
    } else if (!username.equals(other.username))
        return false;
    return true;
}
}

这是我的UserAccount驱动程序：

import java.util.Scanner;

public class UserAccountDriver {

public static void main(String[] args) {

    UserAccount userAccount1 = new UserAccount(null, null);
    UserAccount userAccount2 = new UserAccount(null, null);

    String userName1 = null;
    String password1 = null;
    String password1check = null;
    String userName2 = null;
    String password2 = null;
    String password2check = null;

    @SuppressWarnings("resource")
    Scanner input = new Scanner(System.in);

    System.out.println("Enter a user name for the first account: ");
    userName1 = input.nextLine();
    userAccount1.setUsername(userName1);
    boolean password1Set = false;
    while (password1Set == false)
    {
        System.out.println("Enter a password for the first account: ");
        password1 = input.nextLine();
        userAccount1.setPassword(password1);
        System.out.println("Enter the password again: ");
        password1check = input.nextLine();          
        if (userAccount1.checkPassword(password1check)==false)
        {
            System.out.println("Passwords do not match, please try again.");
            password1Set = false;
        }
        else password1Set = true;
    }
    userAccount1.setPassword(password1);
    System.out.println("Passwords match, password is set.");


    System.out.println("Enter a user name for the second account: ");
    userName2 = input.nextLine();
    userAccount2.setUsername(userName2);
    boolean password2Set = false;
    while (password2Set == false)
    {
        System.out.println("Enter a password for the first account: ");
        password2 = input.nextLine();
        userAccount2.setPassword(password2);
        System.out.println("Enter the password again: ");
        password2check = input.nextLine();
        if (userAccount2.checkPassword(password2check)==false)
        {
            System.out.println("Passwords do not match, please try again.");
            password2Set = false;
        }
        else password2Set = true;
    }
    userAccount2.setPassword(password2);
    System.out.println("Passwords match, password is set.");


    System.out.println(userAccount1);
    System.out.println(userAccount2);

    if (userAccount1.equals(userAccount2)) {
        System.out.println("The user accounts have the same name, the 2nd account will be deactivated.");
        userAccount2.deactivateAccount();
    } else { 
        System.out.println("The user accounts are not duplicates, both will remain active.");
    }
}

}

谢谢！