Question About Abstract Classes?
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Published on 2010-05-15T17:04:37Z
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According to this wesbite .. you cannot implement Abstract classes but derive from them. This makes sense and I have read this many times.
Like an interface, you cannot implement an instance of an abstract class, however you can implement methods, fields, and properties in the abstract class that can be used by the child class.
But on MSDN
TextWriter is an abstract class but it has two constructors defined ... and according to the MS 70-536 book, the following statement is valid:
TextWriter tw = new File.CreateText("myFile.Txt")
The static file class and it's CreateText method is fine by me as I have studied it on MSDN but can somebody explain this little contradiction I have found? Surely I am not the first?
Why is instantaion of base abstract classes possible????
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