C#•2y ago

IDisposable and using keyword?

using (Wolf wolf = new Wolf()) {}

public interface ICarnivore {}

public class Wolf : ICarnivore, IDisposable {
   public void Dispose() {}
}

using (Wolf wolf = new Wolf()) {}

public interface ICarnivore {}

public class Wolf : ICarnivore, IDisposable {
   public void Dispose() {}
}

using (Wolf wolf = new Wolf()) {}

public interface ICarnivore {}

public class Wolf : ICarnivore, IDisposable {
   public void Dispose() {}
}

using (Wolf wolf = new Wolf()) {}

public interface ICarnivore {}

public class Wolf : ICarnivore, IDisposable {
   public void Dispose() {}
}

I am trying to understand

using

using

using

using and

IDisposable

IDisposable

IDisposable

IDisposable.

It seems that we can attach

IDisposable

IDisposable

IDisposable

IDisposable to any class, which gives us a method called

Dispose

Dispose

Dispose

Dispose that we have to implement. This dispose method is automatically run and does whatever is specified, whenever we shutdown/remove a class.

And

using

using

using

using is something we use for

IDisposable

IDisposable

IDisposable

IDisposable classes only it seems. And somehow the

using

using

using

using keyword would then know what to do when we shutdown the class...

1- I can kind of understand IDisposable, but want to know if my explanation is correct
2- What does it mean that a class is shutdown/removed? how can I do this in code?
3- the using keyword (as I tried to explain above) still make almost no sense, and I am even sensing it can be used without

IDisposable

IDisposable

IDisposable

IDisposable

(If needed for other language examples then I know Java/Scala/React a bit, but prefer C# explanation :) )

IDisposable and using keyword?

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