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14 Cards in this Set
- Front
- Back
- 3rd side (hint)
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What is Serialization?
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Serialization in .NET allows the programmer to take an instance of an object and convert it into a format that is easily transmittable over the network, or even stored in a database or file system.
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What is Abstraction?
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The process of hiding the details and exposing only the essential features of a particular object or procedure.
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What is Encapsulation?
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The ability of an object to hide its data & functionality (methods) from the rest of the world
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What is Polymorphism?
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Allowing a single definition to be used with different types of data (specifically, different classes of objects).
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How do you convert a value-type to a reference-type?
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Use Boxing.
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How do you Inherit from a Class in C#?
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Place a colon and then the name of the base class. Notice that it's double colon in C++.
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What happens in memory when you Box and Unbox a value-type?
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Boxing converts a value-type to a reference-type, thus storing the object on the heap.
UnBoxing converts a reference-type to a value-type, thus storing the value on the stack. |
None
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Explain Inheritance.
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The ability to define a more specialized data type in terms of a less specialized type.
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What is Singleton?
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A class which is not meant to be freely instantiated, but have only one instance.
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Does C# support multiple Inheritance?
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No, use interfaces instead.
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Name and define the three most important features an object oriented language must provide.
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Encapsulation: the ability to conceal the internals of data and functionality from client programmers.
Inheritance: The ability to define a more specialized data type in terms of a less specialized type. Polymorphism: the ability to re-use names of methods/functions and have the language or run-time figure out the correct method to use in a given circumstance. |
None
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What's the implicit name of the parameter that gets passed into the class' set method?
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Value, and its datatype depends on whatever variable we're changing.
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What is Boxing and Unboxing?
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Boxing converts a value-type to a reference-type (object), and stores the object on the heap.
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None
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What are Static Members?
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Static Members are similar to global functions & variables, but have the advantage of Encapsulation.
Static members belong to the class itself. Are linked to the lifetime of the applications. |
None
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