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

C Interview Questions

Questions Answers Views Company eMail

main() { int x=20,y=35; x = y++ + x++; y = ++y + ++x; printf("%d %d\n",x,y); } what is the output?

Ramco,

10 19706

main() { int x=5; printf("%d %d %d\n",x,x<<2,x>>2); } what is the output?

Ramco,

9 18633

#define swap1(a,b) a=a+b;b=a-b;a=a-b; main() { int x=5,y=10; swap1(x,y); printf("%d %d\n",x,y); swap2(x,y); printf("%d %d\n",x,y); } int swap2(int a,int b) { int temp; temp=a; b=a; a=temp; return; } what are the outputs?

Ramco,

4 20394

#include main() { char s1[]="Ramco"; char s2[]="Systems"; s1=s2; printf("%s",s1); } what will happen if you executed this code?

Ramco,

4 10236

#include main() { char *p1; char *p2; p1=(char *) malloc(25); p2=(char *) malloc(25); strcpy(p1,"Ramco"); strcpy(p2,"Systems"); strcat(p1,p2); printf("%s",p1); } Tell me the output?

Ramco,

6 16701

main() { int x=10,y=15; x=x++; y=++y; printf("%d %d\n",x,y); } output??

EBS, Ramco, Sangwin, TCS,

19 62255

main() { int a=0; if(a=0) printf("Ramco Systems\n"); printf("India\n"); } output?

Ramco,

7 13539

#include int SumElement(int *,int); void main(void) { int x[10]; int i=10; for(;i;) { i--; *(x+i)=i; } printf("%d",SumElement(x,10)); } int SumElement(int array[],int size) { int i=0; float sum=0; for(;i

Ramco,

5 11376

const char * char * const What is the differnce between the above tow?.

Ramco, TCS,

6 11005

two variables are added answer is stored on not for third variable how it is possible?

3 6477

how to convert binary to decimal and decimal to binary in C lanaguage

BPO, Far East Promotions, IBM, RBS,

7 28501

what is use#in c

3 7008

how to connect oracle in C/C++.

TCS, Wipro,

3 10344

How to use c/c++ code in JAVA

CDAC, IBM, Satyam, Scope International,

10 22429

Explain the importance and use of each component of this string: Foo.Bar, Version=2.0.205.0, Culture=neutral, PublicKeyToken=593777ae2d274679d

TCS,

1 7246

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Un-Answered Questions { C }

What is pointer to pointer in c with example?

1184

What is variable initialization and why is it important?

1374

Can a function be forced to be inline? Also, give a comparison between inline function and the C macro?

1171

In C programming, how do you insert quote characters (‘ and “) into the output screen?

1601

i have a written test for microland please give me test pattern

2803

Differentiate between null and void pointers.

1250

What is the difference between union and anonymous union?

1389

write a c program to find the sum of five entered numbers using an array named number

2229

what is ur strangth & weekness

2562

Write a program to maintain student’s record. Record should not be available to any unauthorized user. There are three (3) categories of users. Each user has its own type. It depends upon user’s type that which kind of operations user can perform. Their types and options are mentioned below: 1. Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record) 2. Super Admin (Search Record [by Reg. No or Name], View All Records, Insert New Record, Modify Existing Record, Delete Single Record) 3. Guest (Search Record [by Reg. No or Name], View All Records) When first time program runs, it asks to create accounts. Each user type has only 1 account (which means that there can be maximum 3 accounts). In account creation, following options are required: Login Name: <6-10 alphabets long, should be unique> Password: <6-10 alphabets long, should not display characters when user type> Confirm Password: Account Type: Login Name, Password and Account Type should be stored in a separate file in encrypted form. (Encryption means that actual information should be changed and Decryption means that Encrypted information is changed back to the actual information) If any of the above mentioned requirement(s) does not meet then point out mistake and ask user to specify information again. When Program is launched with already created accounts, it will ask for user name and password to authenticate. On successful authentication, give options according to the user’s type.

2068

ATM machine and railway reservation class/object diagram

5328

List at least 10 sorting methods indicating their average case complexity, worst case complexity and best case complexity.

2808

Explain the difference between null pointer and void pointer.

1151

write a progrmm in c language take user interface generate table using for loop?

2114

Is int a keyword in c?

1052

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