如何从 Java 中的 ArrayList 中删除对象? [英] How do I remove an object from an ArrayList in Java?

问题描述

我有一个 ArrayList 包含一些对象，例如 User，每个对象都有一个 name 和 password属性.如何从这个 ArrayList 中仅删除具有特定名称"的 User 对象?

I have an ArrayList that contains some object, such as User, and each object has a name and password property. How can I delete only the User object that has a specific 'name' from this ArrayList?

推荐答案

你可以这样使用:

           // If you are using java 8
           userList.removeIf(user-> user.getName().equals("yourUserName"));
           // With older version
           User userToRemove = null;
           for(User usr:userList) {
             if(usr.getName().equals("yourUserName")) {
                userToRemove = usr;
                break;
             }
           }
           userList.remove(userToRemove);

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