Java 网络用户类：定义、构造器和用户计数

{"title":"Java 网络用户类：定义、构造器和用户计数","description":"本教程展示如何使用Java定义一个网络用户类，包括私有成员变量、构造器和用户计数。使用构造器创建用户实例，并跟踪用户总数。","keywords":"Java, 网络用户类, 用户类, 用户ID, 用户名, 密码, 邮箱地址, 构造器, 用户总人数, 计数, 实例化, 对象","content":"public class User {\n private int id;\n private String username;\n private String password;\n private String emailAdrr;\n private static int totalUser = 0;\n\n public User(int id, String password) {\n this.id = id;\n this.password = password;\n this.emailAdrr = username + "@gameschool.com";\n totalUser++;\n }\n\n public static void main(String[] args) {\n User user1 = new User(1, "password1");\n User user2 = new User(2, "password2");\n User user3 = new User(3, "password3");\n System.out.println("用户总人数: " + totalUser);\n }\n}