C#.Net Interview Question and Answers
| 21. |
Does c# support multiple inheritance? |
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No,its impossible which accepts multi level inheritance. |
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| 22. |
What is ENUM? |
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Enum are used to define constants. |
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| 23. |
What is a data set? |
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A DataSet is an in memory representation of data loaded from any data source. |
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| Babita, said |
Jan 26,2014 |
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Dataset is a container in which we can stored multiple table data with help of data source.
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| Digvijay Kumar Singh, said |
Jan 17,2014 |
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Dataset is connection type object od ADO.net and worked at disconnected mode and taken the diffrent–diffrent information from diffrent –diffrent data provideer and making the relation between them.
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| 24. |
What is the difference between private and public keyword? |
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- Private : The private keyword is the default access level and most restrictive among all other access levels. It gives least permission to a type or type member. A private member is accessible only within the body of the class in which it is declared.
- Public : The public keyword is most liberal among all access levels, with no restrictions to access what so ever. A public member is accessible not only from within, but also from outside, and gives free access to any member declared within the body or outside the body.
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| 25. |
Define polymorphism? |
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Polymorphism means one name, multiple forms. It allows us to have more than one function with the same name in a program.It allows us to have overloading of operators so that an operation can exhibit different behaviours in different instances. |
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| Tony Martin, said |
July 17, 2018 |
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In object-oriented programming paradigm, polymorphism is often expressed as 'one interface, multiple functions'. Polymorphism can be static or dynamic. In static polymorphism, the response to a function is determined at the compile time. In dynamic polymorphism, it is decided at run-time.
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Gk Questions with Answers