Java枚举定义最佳实践：从基础到高级用法完整指南

public enum Season {

SPRING, SUMMER, AUTUMN, WINTER

}

public enum UserRole {

ADMIN, EDITOR, VIEWER

}

public enum ConfigurationManager {

INSTANCE;

private Properties config;

private ConfigurationManager() {
    // 初始化配置
    config = loadConfiguration();
}

public String getProperty(String key) {
    return config.getProperty(key);
}

private Properties loadConfiguration() {
    // 加载配置文件的实现
    Properties props = new Properties();
    // ... 加载逻辑
    return props;
}

}

// 好的命名示例 public enum UserRole {

ADMIN, EDITOR, VIEWER, GUEST

}

public enum OrderStatus {

PENDING_PAYMENT, PAID, SHIPPED, DELIVERED, CANCELLED

}

// 不太理想的命名 public enum roles { // 应该用单数

admin, editor   // 应该全大写

}