Join Barron Stone for an in-depth discussion in this video Using inheritance, part of Programming Foundations: Object-Oriented Design.
- [Instructor] I want to show you a few examples…of how inheritance is implemented…across several different languages…to help you recognize inheritance when you see it in code.…But don't worry about memorizing syntax here,…this is just an overview.…If I wanted to find a new class called CargoShuttle…that inherits from an existing Spaceship class,…in Java I would use the keyword extend…followed by the name of the class I wanted to inherit from.…So CargoShuttle extends Spaceship.…In c#, I would use a colon,…which is a fairly common way…to indicate that CargoShuttle inherits from Spaceship.…
C++ and Swift both use…a similar type of colon notation as well.…Now Python is a bit different.…Python puts the super class…that the new subclass will inherit from in parentheses.…And Ruby has its own way…of saying that CargoShuttle inherits from Spaceship…using the less than symbol.…As you can see here,…this basic idea of inheritance…is really just a minor syntax change between languages.…Now when it comes to the details of overriding,…
Released
11/27/2018- Object-oriented basics: objects, classes, and more
- Encapsulation
- Inheritance
- Defining requirements
- Identifying use cases, actors, and scenarios
- Domain modeling
- Identifying class responsibilities and relationships
- Creating class diagrams
- Using abstract classes
- Working with inheritance
- Developing software with object-oriented design principles
Skill Level Beginner
Duration
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Introduction
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What you should know1m 33s
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1. Object-Oriented Fundamentals
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Object-oriented thinking4m 23s
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Objects5m 1s
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Classes4m 38s
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Abstraction2m 32s
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Encapsulation3m 38s
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Inheritance4m
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Polymorphism4m 9s
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2. Requirements
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Defining requirements5m 9s
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FURPS+ requirements2m 37s
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3. Use Cases and User Stories
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Use cases4m 57s
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Identifying the actors3m 39s
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Identifying the scenarios4m 18s
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Diagramming use cases3m 38s
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User stories3m 53s
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Challenge: Jukebox use cases1m 11s
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Solution: Jukebox use cases2m 44s
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4. Domain Modeling
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Identifying the objects3m 52s
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CRC cards2m 58s
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5. Class Diagrams
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Instantiating classes3m 39s
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6. Inheritance and Composition
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Using inheritance2m 44s
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Interfaces4m 15s
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Aggregation2m 3s
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Composition1m 45s
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7. Software Development
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Software testing3m 38s
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Design patterns3m 48s
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Conclusion
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Next steps50s
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Video: Using inheritance