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FlyWeightFactory is responsible for creating and managing meta-units. When a client requests, the factory needs to check whether there are eligible objects in the current object pool. If so, it returns the existing object. If not, it creates a new object. FlyWeight is a superclass. When it comes to shared pools, It is easy to think of JDBC connection pooling in Java, Considering the characteristics of each connection, It is not difficult for us to sum up: Applies to several objects that are shared, They have some common attributes, Take the database connection pool as an example, url, driverClassName, username, password and dbname, these attributes are the same for each connection, so it is suitable to use the meta-sharing mode to process, build a factory class, take the above similar attributes as internal data and the others as external data, and pass them in as parameters when calling methods, thus saving space and reducing the number of instances.A1.1. 4 Motion check.Win10 shows that the broadband is connected, but the network solution is not available.Parsing: Most people will first see the ternary operator and then output the result Value is somethin.喜羊羊与灰太狼之我爱灰太狼新版海报玩得越来越纯熟，河里响起一串清脆的嬉笑声，外加狗儿兴奋的汪汪叫声——它也喜欢上了这游戏。