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  Home Placement Paper Kit Technical Questions ► C and C++ ▼

1.Difference between "C structure" and "C++ structure".

2.What will happen if I say delete this

3.What is Dangling pointer?

4. Difference between "C structure" and "C++ structure".

5. Diffrence between a "assignment operator" and a "copy constructor"

6. What is the difference between "overloading" and "overridding"?

7. Explain the need for "Virtual Destructor".

8. Can we have "Virtual Constructors"?

9. What is a COPY CONSTRUCTOR and when is it called (this is a frequent question !)?

10. Explain term POLIMORPHISM and give an example using eg. SHAPE object: If I have a base class SHAPE, how would I define DRAW methods for two objects CIRCLE and SQUARE.

11. What is the word you will use when defining a function in base class to allow this function to be a polimorphic function?

12. What are 2 ways of exporting a function from a DLL?

13. You have two pairs: new() and delete() and another pair : alloc() and free(). Explain differences between eg. new() and malloc()

14. What is a callback function. Explain in C and C++ and WIN API environment.

15. (From WINDOWS API area): what is LPARAM and WPARAM?

16. What are the different types of polymorphism?

17. What are Virtual Functions? How to implement virtual functions in "C"

18. What are the different types of Storage classes?

19. What is Namespace?

20. What are the types of STL containers?.

21. Is there any difference between a messageand method?

22. If I ask you to write 'VI' editor in C++ - How you'll proceed?

23. Difference between char name[] = “prashant n mhatre”; and char *name = “prashant n mhatre”;

24. Should we use global variables?

25. Parsing HTML or XML document with C++

26. What is 'self assignment'?

27. What is the return value for getch()?

28. can we make any program in c++ without using any header file and what is the shortest program in c++.

29. What is the return value for getch()?

30. How to write c++ program to write a message to the screen?

31. What is the difference between delete and destructor in c++?

32. What is "map" in STL?

33. When shall I use Multiple Inheritance?

34. What are the techniques you use for debugging?

35. How to reduce a final size of executable?

36. Give 2 examples of a code optimization.

37. What is a void return type?

38. How is it possible for two String objects with identical values not to be equal under the == operator?

39. What is the difference between a while statement and a do statement?

40. Can a for statement loop indefinitely?

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