C#.NET INTERVIEW QUESTION & ANSWERS
| 21. |
What is hash table? |
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Hash table provides way of accessing the index using a user identified KEY value, thus removing the INDEX problem. |
| 22. |
What are the similarities between class and structures? |
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- Both can have constructors, methods, properties, fields, constants, enumeration, events and event handlers.
- Structures and classes can implement interface.
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Both can have delegates and events.
- Both of them can have constructors with and without parameter.
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| 23. |
Does C# have copy constructors? |
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No. Objects in C# are always created by reference rather than by value, so a copy constructor is never implicitly called the way that it might be in C++. |
| 24. |
What is Multi-tasking? |
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It is a feature of modern operating system with which we can run multiple programs at same time. |
| 25. |
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++. |
