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// shapeslib.cs

using System;

namespace MyShapes

{

// Circle class

class Circle{  /* Interesting methods... */ }

// Hexagon class

class Hexagon{ /* More interesting methods... */ }

// Square class

class Square{  /* Even more interesting methods... */ }

}

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---

Notice how the MyShapes namespace acts as the conceptual “container” of these types. Alterna-

tively, you can split a single namespace into multiple C# files. To do so, simply wrap the given class

definitions in the same namespace:

// circle.cs

using System;

namespace MyShapes

{

// Circle class

class Circle{ }

}

// hexagon.cs

using System;

namespace MyShapes

{

// Hexagon class

class Hexagon{ }

}

// square.cs

using System;

namespace MyShapes

{

// Square class

class Square{ }

}

When another namespace wishes to use objects within a distinct namespace, the using key-

word can be used as follows: