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- Question
How many types of constructor are there in C++?
Options- A. 1
- B. 2
- C. 3
- D. 4
- Correct Answer
- 3
ExplanationThere are three types of constructor in C++. They are Default constructor, Parameterized constructor, Copy constructor.
- 1. What does inheriatance allows you to do?
Options- A. create a class
- B. access methods
- C. create a hierarchy of classes
- D. None of the mentioned Discuss
- 2. What is meant by pure virtual function?
Options- A. Function which does not have definition of its own.
- B. Function which does have definition of its own.
- C. Function which does not have any return type.
- D. None of the mentioned Discuss
- 3. Which of the following can derived class inherit?
Options- A. members
- B. functions
- C. both a & b
- D. None of the above Discuss
- 4. A special member function of a class, which is invoked automatically whenever an object goes out of the scope is called
Options- A. Constructor
- B. Destructor
- C. Friend function
- D. None of the above Discuss
- 5. What do you mean by inline function? Discuss
- 6. What is a template?
Options- A. A template is a formula for creating a generic class
- B. A template is used to manipulate the class
- C. A template is used for creating the attributes
- D. none of the mentioned Discuss
- 7. What is meant by template specialization?
Options- A. It will have certain data types to be fixed.
- B. It will make certain data types to be dynamic.
- C. Certain data types are invalid
- D. None of the mentioned Discuss
- 8. How many kinds of entities are directly parameterized in c++?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 9. Where does the exceptions are used?
Options- A. Exceptions are used when postconditions of a function cannot be satisfied.
- B. Exceptions are used when postconditions of a function can be satisfied.
- C. To preserve the program
- D. none of these Discuss
- 10. Where does the exception are handled?
Options- A. inside the program
- B. outside the regular code
- C. both a & b
- D. none of these Discuss
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Correct Answer: create a hierarchy of classes
Correct Answer: Function which does not have definition of its own.
Explanation:
As the name itself implies, it have to depend on other class only.
Correct Answer: both a & b
Correct Answer: Destructor
Explanation:
Destructor is a special member function of a class, which is invoked automatically whenever an object goes out of the scope. It has the same name as its class with a tilde character prefixed.
Correct Answer: An inline function is a function that is expanded inline when invokedie the compiler replaces the function call with the corresponding function code An inline function is a function that is expanded in line when it is invoked That is the compiler replaces the function call with the corresponding function code (similar to macro)
Correct Answer: A template is a formula for creating a generic class
Correct Answer: It will have certain data types to be fixed.
Explanation:
In the template specialization, it will make the template to be specific for some data types.
Correct Answer: 3
Explanation:
C++ allows us to parameterize directly three kinds of entities through templates: types, constants, and templates.
Correct Answer: Exceptions are used when postconditions of a function can be satisfied.
Correct Answer: outside the regular code
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