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Finished Using IDisposable, repo at 578bebe

Jason Zhu 2021-02-23 11:03:19 +11:00
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csharp_fundamentals/8_oop.md

@ -166,3 +166,12 @@ namespace InterfaceDemo
* Naming Convention: Interface is begin by `I`. e.g. `IBook`
* Interfaces are far more commen than abstract class
* When class inherit from interface, methods from interface must be implemented, even if it's abstract class, and implemented methods are virtual
## Writing Grades to a File & Using IDisposable
Reference:
* [Implement a Dispose method (.NET fundamentals)](https://docs.microsoft.com/en-us/dotnet/standard/garbage-collection/implementing-dispose)
* [Usage and Importance of Using in C# -> Using Statment (for garbage collection)](https://www.c-sharpcorner.com/UploadFile/manas1/usage-and-importance-of-using-in-C-Sharp472/)
* .NET has garbage collector to recycle memory. We also has some resource that want to release once used as soon as possible. .NET provide `IDisposable` interface to notify and automatically recycle resource.
* `using` statement