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

C Interview Questions

Questions Answers Views Company eMail

write a program to display the numbers in the following 4 4 3 3 2 2 1 1 0 1 1 2 2 3 3 4 4

1 3596

write a program to display the numbers in the following format 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 2 2 2 2 2 3 3 3 4

IBM, NIIT, Winit,

9 14898

what is the output of the program and explain why?? #include void main ( ) { int k=4,j=0: switch (k) { case 3; j=300; case 4: j=400: case 5: j=500; } printf (“%d\n”,j); }

Oracle,

14 18055

What is the real time usage volatile?

Polycom,

2 6259

what are the stoge class in C and tel the scope and life time of it?

Tech Mahindra,

2 5780

What will be the result of the following program? char*g() { static char x[1024]; return x; } main() { char*g1="First String"; strcpy(g(),g1); g1=g(); strcpy(g1,"Second String"); printf("Answer is:%s", g()); } (A) Answer is: First String (B) Answer is: Second String (C) Run time Error/Core Dump (D) None of these

Oracle,

2 8229

. Consider the following program main() { int a[5]={1,3,6,7,0}; int *b; b=&a[2]; } The value of b[-1] is (A) 1 (B) 3 (C) -6 (D) none

Oracle,

9 22649

Given a piece of code int x[10]; int *ab; ab=x; To access the 6th element of the array which of the following is incorrect? (A) *(x+5) (B) x[5] (C) ab[5] (D) *(*ab+5} .

Oracle,

2 9231

What is the output of the following progarm? #include main( ) { int x,y=10; x=4; y=fact(x); printf(“%d\n”,y); } unsigned int fact(int x) { return(x*fact(x-1)); } A. 24 B. 10 C. 4 D. none

2 6094

What is the o/p of the follow pgm? #include main() { char char_arr[5]=”ORACL”; char c=’E’; prinf(“%s\n”,strcat(char_arr,c)); } a:oracle b. oracl c.e d.none

Oracle,

2 5390

#include main() { int a[3]; int *I; a[0]=100;a[1]=200;a[2]=300; I=a; Printf(“%d\n”, ++*I); Printf(“%d\n”, *++I); Printf(“%d\n”, (*I)--); Printf(“%d\n”, *I); } what is the o/p a. 101,200,200,199 b. 200,201,201,100 c. 101,200,199,199 d. 200,300,200,100

1 4960

What is 'makefile' in C langauage? How it be useful? How to write a makefile to a particular program?

2 8263

Is main() is used in the program,,see below example? void main() { int i; for(i=0;i<10;i++) main(); } Then what is the output of the program?

6 7373

What is the output for the below program? void main() { float me=1.1; double you=1.1; if(me==you) printf("love c"); else printf("know c"); }

7 10417

What is the output of the below program and how it is? void main() { static int var=5; printf("%d",var--); if(var) main(); }

MindFire, TCS, Tech Mahindra,

8 19807

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Un-Answered Questions { C }

Can main () be called recursively?

1124

What is the difference between call by value and call by reference in c?

1168

What is wrong with this program statement? void = 10;

1257

How can I use a preprocessorif expression to ?

1065

State two uses of pointers in C?

1063

what is uses of .net

1742

On most computers additional memory that is accessed through an adapter of feature card along with a device driver program. a) user memory b) conventional memory c) expandedmemory d) area

1123

What is the equivalent code of the following statement in WHILE LOOP format?

1307

Under what circumstances does a name clash occur?

1204

What is %s and %d in c?

1047

What does %p mean c?

1073

What is the -> in c?

1016

An arrangement of information in memory in such a way that it can be easily accessed and processed by a programming language a) string b) data structure c) pointers d) array

1140

What is meant by inheritance?

1090

What does stand for?

1086

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