201671010118 2016-2017-2 "Java program design" Fifth Week learning experience

The week's Java course has ended, this week we mainly learn the inheritance, class, superclass and subclass, inheritance levels, polymorphism, etc., the teacher said this lesson with the classroom teaching method, I think the effect is good, understand their concept, and the relationship between, mastered the definition of super class and the use of Super class extension subclass, Also know the two uses of Super, Super () represents the constructor that calls the superclass, super. Represents a method that calls a superclass. Experiment v Teacher gave a study questions "Do you think Sumallarea and Sumallperimeter method in which class is more appropriate?" "I did not really understand that in this week's study, the basic concept of understanding, but there are some problems in programming, and hope to work harder in the future."

201671010118 2016-2017-2 "Java program design" Fifth Week learning experience