関連ワード:  what is instance class in java    what is instance of class in javascript    what is instance of a class in java with example    what is instance and class variable in java    what is object or instance of class in java    what is mean by instance of class in java    what is local instance and class variable in java    what is an instance of a class called in java    what is used to create an instance of a class in java    what is the use of instance and class variables in java