C Interview Questions
Questions Answers Views Company eMail

Write a C++ program to generate 10 integer numbers between - 1000 and 1000, then store the summation of the odd positive numbers in variable call it sum_pos, then find the maximum digit in this variable regardless of its digits length.

1557

Write a programe print the sum of series 0,1,2,.....10

7 5855

what is the output of the below code? main( ) { printf ( "\nOnly stupids use C?" ) ; display( ) ; } display( ) { printf ( "\nFools too use C!" ) ; main( ) ; }

3 10353

1. What is the output of printf("%d") 2. What will happen if I say delete this 3. Difference between "C structure" and "C++ structure". 4. Diffrence between a "assignment operator" and a "copy constructor" 5. What is the difference between "overloading" and "overridding"? 6. Explain the need for "Virtual Destructor". 7. Can we have "Virtual Constructors"? 8. What are the different types of polymorphism? 9. What are Virtual Functions? How to implement virtual functions in "C" 10. What are the different types of Storage classes? 11. What is Namespace? 12. What are the types of STL containers?. 13. Difference between "vector" and "array"? 14. How to write a program such that it will delete itself after exectution? 15. Can we generate a C++ source code from the binary file? 16. What are inline functions? 17. Talk sometiming about profiling? 18. How many lines of code you have written for a single program? 19. What is "strstream" ? 20. How to write Multithreaded applications using C++? 21. Explain "passing by value", "passing by pointer" and "passing by reference" 22. Write any small program that will compile in "C" but not in "C++" 23. Have you heard of "mutable" keyword? 24. What is a "RTTI"? 25. Is there something that I can do in C and not in C++? 26. Why preincrement operator is faster than postincrement? 27. What is the difference between "calloc" and "malloc"? 28. What will happen if I allocate memory using "new" and free it using "free" or allocate sing "calloc" and free it using "delete"? 29. What is Memory Alignment? 30. Explain working of printf. 31. Difference between "printf" and "sprintf". 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.

2 4048

write a program whose output will be- 1 12 123 1234

10 28524

accept character from keyboard untill the user presses the enter key.If the user enters any character other than upper case(A-Z)alphabets program should stop taking any input

1 2621

Please write me a program to print the first 50 prime numbers (NOT between the range 1 -50)

IBM, KJH,

5 47368

I need a help with a program: Write a C program that uses data input in determining the whole of points A and a whole of circles B. Find two points in A so that the line which passes through them, cut through the maximum number of circles.

TCS,

1485

Can anyone help me with this please? Need to print the below values.. Thanks 1 1 2 1 2 3 1 2 3 4

3 3668

logic for x=y^n

Delphi,

1 3230

what is the difference between procedure oriented and object oriented progaming language

1 2708

hello freinds next week my interview in reliance,nybody has an idea about it intervew questions..so tell

Reliance,

1654

which is the best site or book for learning C...and i need the content for C..how to get the good programming skills....? can plz suggest me....

2 4123

Write a program to show the workingof auto variable.

Infotech,

2 4486

what is the program to display your name in any color?

HCL,

2 4015


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Un-Answered Questions { C }

Is c weakly typed?

560


What is the difference between union and structure in c?

562


What is use of null pointer in c?

562


What is modifier & how many types of modifiers available in c?

596


typedef enum { html, java, javascript, perl, cgi } lang;The above statement defines a : a) Union b) User defined type c) Enumerated variable d) none

699






Is c still used?

590


we need to calculating INCOME TAX for the person. The INCOME TAX is as follows:- First $10000/- of income : 4% tax Next $10000/- of income : 8% tax Next $10000/- of income : 11.5% tax above $10, 00,00/- : 15% tax What is the Solution of this Question ?

797


What is the purpose of realloc()?

657


How can I prevent another program from modifying part of a file that I am modifying?

604


I heard that you have to include stdio.h before calling printf. Why?

576


Write a program to show the change in position of a cursor using c

568


What is difference between structure and union in c?

532


Differentiate between a structure and a union.

752


Is c procedural or functional?

578


while initialization of array why we use a[][2] why not a[2][]...?

1855