Which of the following statements is not true for interfaces

A) Interface definitions does not have implementation
B) Interfaces must be declared as public
C) Interfaces can be instantiated
D) Interface does not have constructors
Explanation: Interfaces can only be implemented by inheriting and they can not be instantiated
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Pan

  • Jan 31st, 2006
 

C is correect answer. Interface can never be instantiated they should always be inherited so that member function should have implementation.

sekhar

  • Feb 24th, 2006
 

3 is

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sekhar

  • Feb 24th, 2006
 

3rd is the correct answer since interface has no implemtation they cannot be instiated

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Naresh

  • Apr 1st, 2006
 

A and D is right Answer

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Guest

  • Apr 20th, 2006
 

B and C are not true for Interfaces. Interfaces have abstract methods and members whose implementation is done in the derived class. By default all the methods in an Interface are public, so there is no need to explicitly use the public keyword with them. The complier will through a complie time error if we use.  

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Prem Kumar Nanda

  • May 9th, 2006
 

Question: which of the following statements is not true for interfaces

C) Interfaces can be instantiated

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lal

  • Jun 29th, 2006
 

Answers B & C

B. Interface members should be declared as public, not interfaces.

C. Interfaces can not be instantiated.

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sairam

  • Jan 28th, 2007
 

the variables intiated in the interfaces are implicitly a final variables .so your answer is wrong.

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Rajesh K

  • Feb 13th, 2007
 

A) Interface definitions does not have implementationB) Interfaces must be declared as publicD) Interface does not have constructorsThis are answer for the above questions

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pankajbanga

  • Feb 26th, 2007
 

Interface definition does not have implementation, they contain only signatures of methods, delegates or events.

Interface members are implicitly public, explicit modifiers are not allowed.

Interface cannot be instantiated directly

Interface cannot contain constructors

Interface cannot contain fields

Interface can itself inherit from multiple interfaces

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Sivavt

  • Apr 2nd, 2012
 

(C) & (D) are wrong. Interface can be a type reference but cannot be instantiated. Interface cannot have constructor.

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Pradeepa

  • Aug 8th, 2012
 

A. Interface definition does not have implementation

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sjaiswal

  • Sep 4th, 2012
 

Interface does not have constructors
Explanation: Interfaces can only be implemented by inheriting and they can not be instantiated.

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TheDentist

  • Apr 23rd, 2013
 

C is the correct answer. Interfaces dont have constructors so they cant be instantiated.

http://msdn.microsoft.com/en-US/library/vstudio/ms173156.aspx

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Saurabh

  • Dec 24th, 2014
 

Both B & C are wrong. Interfaces can be private and in that case public classes cannot inherit them. You can define it within a class. C is wrong as we cannot create an instance of the interface.

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