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20Defining classes
21Properties: get and set
22Auto-properties and init setters
23Constructors and object initializers
24Methods and overloading
25Static classes and members
26Records: data-focused types
27Structs vs. classes
28Inheritance and base
29virtual, override, and sealed
30Abstract classes
31Interfaces and default implementations
32Polymorphism in practice
33Composition over inheritance
34Generic classes and methods
35Constraints on type parameters
36Nullable reference types
37The null-conditional operator ?.
38The null-coalescing operator ??

20Defining classes
21Properties: get and set
22Auto-properties and init setters
23Constructors and object initializers
24Methods and overloading
25Static classes and members
26Records: data-focused types
27Structs vs. classes
28Inheritance and base
29virtual, override, and sealed
30Abstract classes
31Interfaces and default implementations
32Polymorphism in practice
33Composition over inheritance
34Generic classes and methods
35Constraints on type parameters
36Nullable reference types
37The null-conditional operator ?.
38The null-coalescing operator ??

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Lesson 29 of 2,952·2. Object-Oriented C#Free lesson

virtual, override, and sealed

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