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

C Interview Questions

Questions Answers Views Company eMail

1)what is the error in the following stmt where str is a char array and the stmt is supposed to traverse through the whole character string str? for(i=0;str[i];i++) a)There is no error. b)There shud be no ; after the stmt. c)The cond shud be str[i]!='\0' d)The cond shud be str[i]!=NULL e)i shud be initialized to 1

4 5373

main() { enum{red,green,blue=6,white}; pf("%d%d%d%d", red,green,blue,white); return 0; } a)0 1 6 2 b)0 1 6 7 c)Compilation error d)None of the above

6 15882

4)What would be the output? main() { int num=425; pf("%d",pf("%d",num)); } a)Comp error b)4425 c)4253 d)3435 e)none

10 12450

6)What would be the output? main() { int u=1,v=3; pf("%d%d",u,v); funct1(&u,&v); pf("%d%d\n",u,v); } void funct1(int *pu, int *pv) { *pu=0; *pv=0; return; } a)1 3 1 3 b)1 3 1 1 c)1 3 0 0 d)1 1 1 1 e) 3 1 3 1

4 7618

what wud be the output? main() { char *str[]={ "MANISH" "KUMAR" "CHOUDHARY" }; printf("\nstring1=%s",str[0]); printf("\nstring2=%s",str[1]); printf("\nstring3=%s",str[2]); a)string1=Manish string2=Kumar string3=Choudhary b)string1=Manish string2=Manish string3=Manish c)string1=Manish Kumar Choudhary string2=(null) string3=(null) d)Compiler error

Infosys,

9 11208

what will be the output of this program main() { int i=1; while (i<=10); { i++; } }

11 13115

main() { char x; while(x=0;x<=255;x++) printf("\nAscii value %d Charater %c",x,x); }

2 11256

main() { charx; while (x=0;x<=255;x++) printf("\nAscii value %d Character %c,x,x); }

2 9023

main() { intj; while9j<=10) { printf("\n%d",j); j=j+1; } }

4 11718

how to find the sizof of any datatype using bit manipulations

3 6042

How do I declare an array of N pointers to functions returning pointers to functions returning pointers to characters?

CMC, Wipro,

2 8775

SIR PLS TELL ME THE CODE IN C LANGUAGE TO PRINT THE FOLLOWING SERIES 1 1 2 1 1 2 3 2 1 1 2 3 4 3 2 1 1 2 3 2 1 1 2 1 1

4 6222

what is the output of the program?? #include main ( ) { int a=010,sum=0,tracker: for(tracker=0;tracker<=a;tracker++) sum+=tracker; printf(“ %d\n”,sum); } what is the difference between a=10 and a=010??

Oracle,

3 11526

write a program for 4 4 3 3 3 3 2 2 2 2 2 2 1 1 1 1 1 1 1 1 0 0 0 0 0 0 0 0 0 1 1 1 1 1 1 1 1 2 2 2 2 2 2 3 3 3 3 4 4

1 3852

program to find out date after adding 31 days to a date in the month of febraury also consider the leap year

3036

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Un-Answered Questions { C }

Is c high or low level?

974

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

2314

What are the features of the c language?

1045

Where can I get an ansi-compatible lint?

1108

How can I convert a number to a string?

1101

which of the following statement is wrong a) mes=123.56; b) con='T'*'A'; c) this='T'*20; d) 3+a=b;

3176

What are the 32 keywords in c?

1054

What is typedef example?

1126

How can I recover the file name given an open stream?

965

a single linked list consists of nodes a to z .print the nodes in reverse order from z to a using recursion

2730

What is the significance of scope resolution operator?

1362

what is the format specifier for printing a pointer value?

986

What does malloc () calloc () realloc () free () do?

1015

Explain argument and its types.

1008

What are the features of c language?

1027

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