PPT-Java Unit 11: Inheritance I

References to Classes and Subclasses in Programs and methods Write Superclass before Subclass The use and testing of subclasses does not differ greatly from the use and testing of any programmer written class . 1. Real-world Examples: . Animals. Source code: . http://en.wikipedia.org/wiki/Polymorphism_in_object-oriented_programming. . Animal. Dog. Cat. 2. 3. Example #2: Timepieces. Multiple inheritance. A . Omar Abdelwahab. Inheritance and Polymorphism. Suppose you have a class . FunClass. with public methods show, tell, and smile and private methods get and put . If . MoreFunClass. is a subclass of . and other languages… . Class Participation. Get out a piece of paper. You’ll be tracing some code (quick exercises) as we go along. Extending Class Behavior. May create subclasses (inheritance). May include/inherit methods from modules (mix-ins). Object Oriented Programming Inheritance. Like father, like son. Objectives. 2. Introducing inheritance through creating subclasses. Improve code reusability. Allowing overriding to replace the implementation of an inherited method. อาจารย์สมเกียรติ ช่อ. เหมือน. สาขาวิชาวิศวกรรมซอฟต์แวร์ คณะวิทยาศาสตร์และ. Presented By:. Asst. Prof. . Navjeet. Kaur. Computer Department . Govt College . Ropar. . Introduction of java. Java is a general-purpose computer programming Language.. Class Participation. Get out a piece of paper. You’ll be tracing some code (quick exercises) as we go along. Also: have . RubyInheritance-n.rb. files ready to be opened – you can run those to verify your trace is correct. Dr. Mark L. Hornick. 1. Consider a (badly written) generic Duck class. //Duck daffy = new Duck(. Duck.MALLARD. , “daffy”);. //Duck . donald. = new Duck(. Duck.REDHEAD. , “. donald. ”);. //Duck . Week 2 – . Syntax,standards. & Characteristics. Lesson Aims. Look at the command line and arguments. Discuss . characteristics of . Java. Understand and use arrays in our code . Launch Assignment 1. Prof. . Arjun. V. . Bala. . . 9624822202. . . arjun.bala@darshan.ac.in. OO Programming with JAVA (2150704) . Darshan . Institute of Engineering & . Technology. Inheritance. Inheritance is one of the key feature of Object Oriented Programming.. Definition . Allelle. is . an alternative form of a . gene . (one member of a pair) that is located at a specific position on a specific . chromosome. . These DNA coding . determine distinct traits that can be passed on from parents to offspring. . Like father, like son. Objectives. 2. Introducing inheritance through creating subclasses. Improve code reusability. Allowing overriding to replace the implementation of an inherited method. [CS1020 Lecture . Tel. No. 2419677/2419361 e - - mysore.ac.in Fax: 0821 - 2419363/2419301 www.uni - mysore.ac.in UNIVERSITY OF MYSORE Estd. 1916 Vishwavidyanilaya Karyasoudha Crawford Hall, Mysuru - 570 005 N