When you want others to understand and use your code, UML is your friend. It allows you to describe complex things, describe relationships, and see the bigger picture.
- [Narrator] I want to give you a new tool … to help you communicate with other programmers. … When we build complex things, … it makes more sense to see the relationships … described at a higher level in a picture … rather than just code. … UML stands for Unified Modeling Language … and you can use it to draw a wide range of things. … Here are some examples from Wikipedia. … This is a component diagram. … Activity. … And this is a sequence diagram. … But for object-oriented programing, … I find the most useful are class diagrams, … so today we're going to focus on those. … …
Madecraft
June Clarke
Released
11/11/2019This course was created by Madecraft. We are pleased to host this content in our library.
- What is an object in Java?
- Building Java classes
- Retrieving and updating variables with getters and setters
- Using the static keyword
- Understanding inheritance
- Diagramming code with UML
- Implementing polymorphism
Skill Level Advanced
Duration
Views
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Introduction
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1. The World of Objects
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What is an object in Java?1m 13s
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Prerequisites21s
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Exercise files1m 44s
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2. Inside Classes
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The anatomy of a class1m 48s
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The mighty constructor2m 34s
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Construct a duck3m 18s
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3. Getters and Setters
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Using setters3m 13s
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Testing with JUnit2m 16s
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4. Static
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What is static?1m 26s
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Static runs a marathon5m 58s
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Exercise: Static1m 29s
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5. Inheritance
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The mother of all objects1m 35s
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6. UML
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Drawing with UML2m 44s
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7. Polymorphism
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What is polymorphism?1m 24s
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Polymorphism in action2m 11s
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The purpose of polymorphism1m 17s
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Implements vs. extends1m 59s
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Conclusion
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Next steps1m 30s
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Video: The Unified Modeling Language (UML)