Java has a Comparator<T> for providing comparison of objects external to the class itself, to allow for multiple/alternate methods of doing ordered co开发者_StackOverflowmparisons.
I use VS 2008, .net 3.5, C# projects. I need do the same functionally like Microsoft.VisualBasic.FileIO.FileSystem.DeleteDirectory.
Assume you have many elements, and you need to keep track of the equivalence relations between them. If element A is equivalent to element B, it is equivalent to all the other elements B is equivalent
I have a project of converting one database to another. One of the original database columns defines the row\'s category. This column should be mapped to a new category in the new database.
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