Discussion
Home ‣ Interview ‣ Technology Comments
- Question
What is an explicit constructor?
- 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
- 1. How many ways are there to initialize int with a constant?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 2. What do you mean by reference variable in c++? Discuss
- 3. Define Structure in C++.? Discuss
- 4. What is function prototype in C++? Discuss
- 5. What is the output of this program? #include using namespace std; void fun(int x, int y) { x = 20; y = 10; } int main() { int x = 10; fun(x, x); cout << x; return 0; }
Options- A. 10
- B. 20
- C. compile time error
- D. none of these Discuss
- 6. How many ways of reusing are there in class hierarchy?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 7. 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
- 8. Which operator is used in catch-all handler?
Options- A. ellipses operator
- B. ternary operator
- C. string operator
- D. unary operator Discuss
- 9. To which type of class, We can apply RTTI?
Options- A. Encapsulation
- B. Polymorphic
- C. Derived
- D. None of these Discuss
- 10. What do vectors represent?
Options- A. Static arrays
- B. Dynamic arrays
- C. Stack
- D. Queue Discuss
Technology problems
Search Results
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: The C++ programming technique allows defining user defined datatypes through structure The syntax to declare structure is as follows: struct student { char name[100] char address[250] };
Correct Answer: A function prototype is a declaration of a function that omits the function body It specifies the function?s name, argument types and return type Eg int add(int,int)
Correct Answer: 10
Explanation:
In this program, we called by value so the value will not be changed, So the output is 10
Correct Answer: 2
Explanation:
Class hierarchies promote reuse in two ways. They are code sharing and interface sharing.
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: ellipses operator
Explanation:
The ellipses operator can be represented as (?).
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.
Comments
There are no comments.More in Interview:
Programming
Copyright ©CuriousTab. All rights reserved.