C Interview Questions, Answers for Freshers and Experienced asked in various Company Job Interviews

C Interview Questions

Questions Answers Views Company eMail

ATM machine and railway reservation class/object diagram

Zycus Infotech,

5206

if array a conatins 'n' elements and array b conatins 'n-1' elements.array b has all element which are present in array a but one element is missing in array b. find that element.

Parexel, Ram Infotech, Zycus Infotech,

18 26799

Why is conio.h not required when we save a file as .c and use clrscr() or getch() ?

2 5498

what is the difference between entry control and exit control statement?

Darbari Lal DAV Model School,

12 77796

How to add two numbers with using function?

Miracle Solutions,

2 4958

How to add two numbers with using function?

4 15398

array contains zeros and ones as elements.we need to bring zeros one side and one other side in single parse. ex:a[]={0,0,1,0,1,1,0,0} o/p={0,0,0,0,0,1,1,1}

Google, Motorola,

12 17055

how to print a statement in c without use of console statement ,with the help of if statement it should print

Satyam,

2 5131

main is a predefined or user define function if user defined why? if predefined whay?

TCS,

12 32668

what is a c-language.what is do.

HCL,

4 8561

how to find out the union of two character arrays?

2 6762

what is pointer ?

Kernex Micro Systems,

10 11588

totally how much header files r in c language

TCS,

8 11320

Every time i run a c-code in editor, getting some runtime error and editor is disposing, even after reinstalling the software what may be the problem?

2 4379

Hi how many types of software editions are there and their difference (like home editions, enterprise, standard etc) can u please help me

1916

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Un-Answered Questions { C }

What is the difference between struct and union in C?

1267

What are the properties of union in c?

1020

What are the advantages of union?

1034

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

2322

How would you rename a function in C?

1010

What is the role of this pointer?

1011

Who developed c language and when?

1032

Explain the use of bit fieild.

1107

What is the difference between specifying a constant variable like with constant keyword and #define it? i.e what is the difference between CONSTANT FLOAT A=1.25 and #define A 1.25

1954

What will the preprocessor do for a program?

1036

What is the difference between the expression “++a” and “a++”?

1188

What is the difference between malloc calloc and realloc in c?

1094

how should functions be apportioned among source files?

1074

What is difference between constant pointer and constant variable?

1233

What is meant by keywords in c?

1045

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