Discussion
Home ‣ Interview ‣ Technology Comments
- Question
Which operator is used in catch-all handler?
Options- A. ellipses operator
- B. ternary operator
- C. string operator
- D. unary operator
- Correct Answer
- ellipses operator
ExplanationThe ellipses operator can be represented as (?).
- 1. What is meant by exception specification?
Options- A. A function is limited to throwing only a specified list of exceptions.
- B. A catch can catch all types of exceptions.
- C. A function can throw any type of exceptions.
- D. none of the mentioned Discuss
- 2. How many ways of reusing are there in class hierarchy?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 3. What is an explicit constructor? Discuss
- 4. How many ways are there to initialize int with a constant?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 5. What do you mean by reference variable in c++? Discuss
- 6. To which type of class, We can apply RTTI?
Options- A. Encapsulation
- B. Polymorphic
- C. Derived
- D. None of these Discuss
- 7. What do vectors represent?
Options- A. Static arrays
- B. Dynamic arrays
- C. Stack
- D. Queue Discuss
- 8. What is mandatory for designing a new container?
Options- A. Classes
- B. Iterators
- C. Container
- D. None of these Discuss
- 9. Explain one-definition rule (ODR). Discuss
- 10. What are the advantages of using friend classes? Discuss
Technology problems
Search Results
Correct Answer: A function is limited to throwing only a specified list of exceptions.
Explanation:
C++ provides a mechanism to ensure that a given function is limited to throwing only a specified list of exceptions. It is called as exception specification.
Correct Answer: 2
Explanation:
Class hierarchies promote reuse in two ways. They are code sharing and interface sharing.
Correct Answer: A conversion constructor declared with the explicit keyword The compiler does not use an explicit constructor to implement an implied conversion of types It?s purpose is reserved explicitly for construction
Correct Answer: 2
Explanation:
There are two formats for initializers in C++ as shown in the example that follows. The first format uses the traditional C notation. The second format uses constructor notation.
int foo = 123;
int bar (123);
Correct Answer: A reference variable provides an alias to a previously defined variable Data type & reference-name = variable name
Correct Answer: Polymorphic
Explanation:
RTTI is available only for classes which are polymorphic, which means they have at least one virtual method.
Correct Answer: Dynamic arrays
Explanation:
Vectors are sequence containers representing arrays that can change in size.
Correct Answer: Iterators
Correct Answer: According to one-definition rule, C++ constructs must be identically defined in every compilation unit they are used in As per ODR, two definitions contained in different source files are called to be identically defined if they token-for-token identical The tokens should have same meaning in both source files Identically defined doesn?t mean character-by-character equivalence Two definitions can have different whitespace or comments and yet be identical
Correct Answer: - Friend classes are useful when a class wants to hide features from users which are needed only by another, tightly coupled class - Implementation details can be kept safe by providing friend status to a tightly cohesive class
Comments
There are no comments.More in Interview:
Programming
Copyright ©CuriousTab. All rights reserved.