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Question:
Which of the following statements is correct about Interfaces used in C#.NET?

1. All interfaces are derived from an Object class.

2.Interfaces can be inherited.

3.All interfaces are derived from an Object interface.

4. Interfaces can contain only method declaration.

Posted Date:-2021-02-25 10:11:55

More MCQS Questions and answers

  1. Which of the following can implement an interface?
  2. Which of the following statements are correct about an interface used in C#.NET? 1. An interface can contain properties, methods and events. 2. The keyword must implement forces implementation of an interface. 3. Interfaces can be overloaded. 4. Interfaces can be implemented by a class or a struct. 5. Enhanced implementations of an interface can be developed without breaking existing code.
  3. Which of the following statements is correct about the C#.NET code snippet given below? interface IPerson { String FirstName { get; set; } String LastName { get; set; } void Print(); void Stock(); int Fun();
  4. A class implements two interfaces each containing three methods. The class contains no instance data. Which of the following correctly indicate the size of the object created from this class?
  5. Which of the following can be declared in an interface?1. Properties2. Methods3. Enumerations4. Events5. Structures
  6. Which of the following statements are correct about an interface in C#.NET? 1. A class can implement multiple interfaces. 2. Structures cannot inherit a class but can implement an interface. 3. In C#.NET, : is used to signify that a class member implements a specific interface. 4. An interface can implement multiple classes. 5. The static attribute can be used with a method that implements an interface declaration.
  7. Which of the following statements is correct about an interface used in C#.NET?
  8. Which of the following statements is correct about an interface used in C#.NET?
  9. Which of the following statements is correct about an interface?
  10. Which of the following statements is correct about Interfaces used in C#.NET?
  11. Which of the following statements is correct about the C#.NET code snippet given below? interface IMyInterface { void fun1(); void fun2(); } class MyClass: IMyInterface { private int i; void IMyInterface.fun1() { // Some code } }
  12. Which of the following statements is correct about the C#.NET code snippet given below? interface IMyInterface { void fun1(); int fun2(); } class MyClass: IMyInterface { void fun1() { } int IMyInterface.fun2() { } }
  13. Which of the following statements is correct?
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