在 Java 中停止 ArrayList 的迭代 [英] Stopping an iteration of an ArrayList in Java

问题描述

我正在迭代一个名为 clientList 的客户端的 ArrayList，其中包含来自 Client (user,pass)

I'm iterating an ArrayList of clients named clientList that contains clients from the class Client (user,pass)

ArrayList<Client> clientList= new ArrayList<Client>();

这是迭代.如果找到给定的用户(user)并且密码(pass)匹配，我想停止迭代:

Here's the iteration. I want to stop the iteration if it founds a given user (user) and if the password (pass) matches:

            for (Client c : clientList) {
                userA = c.getUser();
                if (userA.equals(user)) {
                    passA = c.getPassword();
                    if (passA.equals(pass)) {
                        loginOK = true;
                        found= true;
                    }

我正在尝试以下 while (found == false)，但如果在 ArrayList 上找不到用户，它就会卡住:

I was trying the following while (found == false) but it's get stucked if it doesnt find an user on the ArrayList:

        while (found == false) { /
            for (Client c : clientList) {
                userA = c.getUser();
                if (userA.equals(user)) {
                    passA = c.getPassword();
                    if (passA.equals(pass)) {
                        loginOK = true;
                        found= true;
                    }
                }
            }
        }

推荐答案

我会这样写:

while (!found) { 
    for (Cliente c : clientList) {
        userA = c.getUser();
        if (userA.equals(user)) {
            passA = c.getPassword();
            if (passA.equals(pass)) {
                loginOK = true;
                found= true;
                break;
            }
        }
    }
}

我的猜测是您没有在 Cliente 类中覆盖 equals 和 hashCode 或者它不正确.

My guess is that you didn't override equals and hashCode in your Cliente class or it's not correct.

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