Discussion
Home ‣ Interview ‣ Technology Comments
- Question
How many ways are there to initialize int with a constant?
Options- A. 1
- B. 2
- C. 3
- D. 4
- Correct Answer
- 2
ExplanationThere 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);
- 1. What do you mean by reference variable in c++? Discuss
- 2. Define Structure in C++.? Discuss
- 3. What is function prototype in C++? Discuss
- 4. 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
- 5. What is the output of this program? #include using namespace std; struct sec { int a; char b; }; int main() { struct sec s ={25,50}; struct sec *ps =(struct sec *)&s; cout << ps->a << ps->b; return 0; }
Options- A. 252
- B. 253
- C. 254
- D. 262 Discuss
- 6. What is an explicit constructor? Discuss
- 7. How many ways of reusing are there in class hierarchy?
Options- A. 1
- B. 2
- C. 3
- D. 4 Discuss
- 8. 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
- 9. Which operator is used in catch-all handler?
Options- A. ellipses operator
- B. ternary operator
- C. string operator
- D. unary operator Discuss
- 10. To which type of class, We can apply RTTI?
Options- A. Encapsulation
- B. Polymorphic
- C. Derived
- D. None of these Discuss
Technology problems
Search Results
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: 252
Explanation:
In this program, We are dividing the values of a and b, printing it.
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:
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.
Comments
There are no comments.More in Interview:
Programming
Copyright ©CuriousTab. All rights reserved.