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- Question
Which of the following statement is correct about the program given below?
#include<iostream.h> #include<string.h> #include<malloc.h> class CuriousTabString { char txtName[20]; public: CuriousTabString(char *txtTemp = NULL) { if(txtTemp != NULL) strcpy(txtName, txtTemp); } void Display(void) { cout<<txtName; } }; int main() { char *txtName = (char*)malloc(10); strcpy(txtName, "CuriousTab"); *txtName = 48; CuriousTabString objTemp(txtName); cout<< sizeof(txtName); return 0; }
Options- A. Above program will display CuriousTab 8.
- B. Above program will display CuriousTab 9.
- C. Above program will display size of integer.
- D. Above program will display CuriousTab and size of integer.
- E. Above program will display 1.
- Correct Answer
- Above program will display CuriousTab 9.
- 1. What will happen if a class is not having any name?
Options- A. It cannot have a destructor.
- B. It cannot have a constructor.
- C. It is not allowed.
- D. Both A and B. Discuss
- 2. cout is a/an __________ .
Options- A. operator
- B. function
- C. object
- D. macro Discuss
- 3. What is the technical word for the function ~CuriousTab() defined in the following program?
#include<iostream.h> class CuriousTab { int x, y; public: CuriousTab(int xx = 10, int yy = 20 ) { x = xx; y = yy; } void Display() { cout<< x << " " << y << endl; } ~CuriousTab() { } }; int main() { CuriousTab objCuriousTab; objCuriousTab.Display(); return 0; }
Options- A. Constructor
- B. Destructor
- C. Default Destructor
- D. Function Template Discuss
- 4. Which of the following statements is correct?
- Once a reference variable has been defined to refer to a particular variable it can refer to any other variable.
- A reference is not a constant pointer.
Options- A. Only 1 is correct.
- B. Only 2 is correct.
- C. Both 1 and 2 are correct.
- D. Both 1 and 2 are incorrect. Discuss
- 5. Which of the following function / types of function cannot have default parameters?
Options- A. Member function of class
- B. main()
- C. Member function of structure
- D. Both B and C Discuss
- 6. How "Late binding" is implemented in C++?
Options- A. Using C++ tables
- B. Using Virtual tables
- C. Using Indexed virtual tables
- D. Using polymorphic tables Discuss
- 7. Which of the following is not the member of class?
Options- A. Static function
- B. Friend function
- C. Const function
- D. Virtual function Discuss
- 8. What happens when we try to compile the class definition in following code snippet?
class Birds {}; class Peacock : protected Birds {};
Options- A. It will not compile because class body of Birds is not defined.
- B. It will not compile because class body of Peacock is not defined.
- C. It will not compile because a class cannot be protectedly inherited from other class.
- D. It will compile succesfully. Discuss
- 9. Which of the following function / type of function cannot be overloaded?
Options- A. Member function
- B. Static function
- C. Virtual function
- D. Both B and C Discuss
- 10. Which of the following statement is correct?
Options- A. The default value for an argument cannot be function call.
- B. C++ allows the redefinition of a default parameter.
- C. Both A and B.
- D. C++ does not allow the redefinition of a default parameter. Discuss
More questions
Correct Answer: Both A and B.
Correct Answer: object
Correct Answer: Destructor
Correct Answer: Both 1 and 2 are incorrect.
Correct Answer: main()
Correct Answer: Using Virtual tables
Correct Answer: Friend function
Correct Answer: It will compile succesfully.
Correct Answer: Virtual function
Correct Answer: C++ does not allow the redefinition of a default parameter.
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