C#.NET INTERVIEW QUESTION & ANSWERS
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| 51. | What are the basic concepts of object oriented programming? |
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| 52. | What is an interface class? |
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| It is an abstract class with public abstract methods all of which must be implemented in the inherited classes. |
| Posted by Meraj ahmad. (Feb 25, 2014) | |
Its kind of entity whose methods are public and abstract class by default. |
| 53. | What is another name for overloading? |
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| Ad-hoc polymorphism is another name for overloading. |
| 54. | What is the difference between value type and reference type? |
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| Value types are stored in the Stack. Examples : enum , float, int, long Reference types are stored in the Heap. Examples : class, interface, object, string. |
| 55. | Do events have return type? |
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| No, events do not have return type. |