LinkedIn principal author Doug Winnie explains how classes define the rules of objects in object-oriented programming. As a programmer, you define the rules of your objects using classes, and then create instances of the classes to use in your program. Classes contain a class name, properties, methods, and a constructor as the core parts of the class.
- With objects, everything can be defined…as having characteristics, actions, and names.…To program with these, we need to have some sort…of framework or scaffolding…that a programming language can use to build these objects.…We do that using classes.…A class is a set of rules that define…how a category of objects or a class of objects…look, behave, and take customization…through various values and settings.…Within a class, you define four things.…
The name of the class,…this is called the class name.…The characteristics of the class,…these are called the class properties.…The actions of the class,…these are called the class methods.…The last is a special method called a constructor…that defines what happens when you create…or construct an object using the rules…laid out by the class.…These four things called the class members…define the basic structure of a class.…
If I create a class, I could take a piece of paper…and write out all the rules of the class.…The properties are defined using variables.…They can store numbers, strings, arrays,…
Join Doug Winnie as he explains the principles of programming and helps you connect to core concepts by exploring three ways that programmers perform their jobs. Doug starts by sharing the history of coding and then dives into functions, values, variables, and parameters used to define actions. He covers capturing input from users, creating conditional tests, using loops with arrays, and object-oriented programming basics. He also takes you beyond programming, into processes like debugging, refactoring, and building iteratively.
- Working with values and variables
- Breaking down tasks
- Customizing functions and parameters
- Building conditional tests
- Creating and changing arrays
- Working with objects and classes
- Debugging and refactoring code
- Going beyond the code as a programmer
Skill Level Beginner
1. Control Computers with Code
2. Define Actions Using Code
3. Repeat Actions and Test for Conditions
4. Objects and OOP
5. Beyond Programming
Debug problems2m 50s
Next steps1m 19s
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