依頼内容
“Create a UML class diagram for a client that uses a singleton Logger with a static instance, a getInstance method and a log method.”
次はこちらAdd a LoggerFactory that returns the Logger.Add a private log level field to Logger.
この図に含まれるもの
図の背後にある意思決定を読み解く。
01
Logger class with private instance and constructor
02
Static getInstance() method for controlled access
03
Client dependency on Logger through the static method
When a class must have exactly one instance, and a global point of access is needed (e.g., logging, configuration, thread pools).