S.No | Question |
---|---|
1. | What is a class in C++? Explain the concept of encapsulation. |
2. | What is an object in C++? How is it different from a class? |
3. | Explain the difference between a member variable and a member function in a class. |
4. | What is a constructor in C++? How is it different from a regular member function? |
5. | What is a destructor in C++? When is it called? |
6. | How do you create an instance of a class in C++? |
7. | Explain the concept of access specifiers (public, private, protected) in C++. |
8. | What is the difference between a default constructor and a parameterized constructor? |
9. | How do you perform input and output operations in C++? |
10. | Explain the difference between the extraction (>>) and insertion (<<) operators. |
11. | How do you read and write data from/to a file in C++? |
12. | What is a copy constructor in C++? When is it called? |
13. | Explain the concept of the default constructor and its role in object initialization. |
14. | What is the difference between constructor overloading and function overloading in C++? |
15. | What is a static variable in C++? How is it different from a regular member variable? |
16. | Explain the concept of static function in a class. |
17. | What is the purpose of the static keyword in C++? |
18. | What is function overloading in C++? Provide an example. |
19. | Can you overload the assignment operator (=) in C++? Explain why or why not. |
20. | Explain the concept of operator overloading in C++. |
21. | What is inheritance in C++? Why is it useful? |
22. | Explain the difference between single inheritance and multiple inheritance in C++. |
23. | How do you prevent a class from being inherited in C++? |
24. | What is the purpose of the virtual keyword in C++ inheritance? |
25. | Explain the concept of an abstract class in C++. |
26. | What is polymorphism in C++? Explain with an example. |
27. | How do you achieve runtime polymorphism in C++? |
28. | What is the difference between static binding and dynamic binding in C++? |
29. | Explain the concept of virtual functions and function overriding in C++. |
30. | What is function overriding in C++? Provide an example. |
31. | Explain the concept of a base class and a derived class in C++. |
32. | Does C++ have a super keyword like Java? Explain. |
33. | What is a friend function in C++? How do you declare and use it? |
34. | What is the difference between a friend function and a member function in a class? |
35. | What is operator overloading in C++? Provide examples. |
36. | Can you overload the logical operators (&& and ||) in C++? Explain why or why not. |
37. | What is a virtual function in C++? How do you declare and use it? |
38. | What is the purpose of the virtual keyword in front of a member function? |
39. | How do you read from a file in C++? Provide examples. |
40. | How do you write to a file in C++? Provide examples. |
41. | What are the file opening modes in C++? |
42. | What are templates in C++? How do you define and use them? |
43. | Explain the difference between function templates and class templates in C++. |
44. | Can you specialize a function template in C++? Explain why or why not. |
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