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C Interview Questions & Answers

Below we have listed all the C Interview Questions and answers. Feel free to comment on any C Interview Questions or answer by the comment feature available on the page.

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C Interview Questions & Answers

C is a high-level and general purpose programming language that is ideal for developing firmware or portable applications. Originally intended for writing system software, C was developed at Bell Labs by Dennis Ritchie for the Unix Operating System (OS) in the early 1970s. With the increasing popularity of object-oriented programming, C is being rapidly replaced as "the" programming language by C++, a superset of the C language that uses an entirely different set of programming concepts, and by Java, a language similar to but simpler than C++, that was designed for use in distributed networks.

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Subcategories for C Interview Questions & Answers :-

Following are sub categories for which Interview Questions & Answers are available under C Interview Questions & Answers. Please select the appropriate sub-category:-

Arrays in C Interview Questions & Answers (18)

Branches & Loops in C Interview Questions & Answers (22)

C Basics Interview Questions & Answers (92)

Dynamic Memory Allocation in C Interview Questions & Answers (21)

File Operations in C Interview Questions & Answers (16)

Functions in C Interview Questions & Answers (59)

Operators in C Interview Questions & Answers (22)

Pointers in C Interview Questions & Answers (43)

Strings in C Interview Questions & Answers (32)

Structures in C Interview Questions & Answers (39)

Variables in C Interview Questions & Answers (38)

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Question
Rating
View Answer
main()
{
int i=3;
switch(i)
{
default:printf("zero");
case 1: printf("one");
break;
case 2:printf("two");
break;
case 3: printf("three");
break;
}
}


5.0 Rating
View Answer
main()
{
char *p;
printf("%d %d ",sizeof(*p),sizeof(p));
}
4.6 Rating
View Answer
vii)7. main()
{
int i=-1,j=-1,k=0,l=2,m;
m=i++&&j++&&k++||l++;
printf("%d %d %d %d %d",i,j,k,l,m);
}


3.4 Rating
View Answer
main()
{
extern int i;
i=20;
printf("%d",i);
}


4.1 Rating
View Answer
All the programs are tested under Turbo C/C++ compilers.
It is assumed that,
?? Programs run under DOS environment,
?? The underlying machine is an x86 system,
?? Program is compiled using Turbo C/C++ compiler.
The program output may depend on the information based on this assumptions (for example sizeof(int) == 2 may be assumed).

Predict the output or error(s) for the following:

i) void main()
{
int const * p=5;
printf("%d",++(*p));
}


3.7 Rating
View Answer
What is the difference between text and binary modes?


4.0 Rating
View Answer
The program that outputs the given binary or image file
3.0 Rating
View Answer
Where is the prototype of the main function i.e how the execution startd from main function and how to find out the size of a function.
2.1 Rating
View Answer
Write a program to remove comment lines and blank lines from an error free c program.
3.1 Rating
View Answer
How to write a program for pascal triangle?
3.2 Rating
View Answer
What is difference between the test effort and the test procedure?
3.0 Rating
View Answer
void main()
{
float a= 0.7;
if (a < 0.7)
printf("c");
else
printf("c++");
}
Output of the above program is c. Why? Whereas the same program with 0.8 instead of 0.7 gives c++ as the output? Why explain?
3.9 Rating
View Answer
Q.8 When a 'C' function call is made, the order in which parameters passed to the function are pushed into the stack is
(a) left to right
(b) right to left
(c) bigger variables are moved first than the smaller variables.
(d) smaller variables are moved first than the bigger ones
(c) none of the above.
3.6 Rating
View Answer
using c-strings write a program that will analyse the text"1.1my brother is taller than me.1.2 I am a boy of sixteen years old". The program should remove multiple spaces betweem words,find the longest word in the text,search and identify the number of letters"e", extact the number of integers , extract the number of doubles, extract the number of words in each sentence and identify the number of sentences in the text.
3.9 Rating
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Can anyone share his code which would accept a sentence, then count the number occurrence of the words excluding spaces.All is done using linked list.
3.3 Rating
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Write a C program that will convert Simple Sentence to Complex/Compound Sentence.
4.3 Rating
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How can we get direct printout of a c file without giving print command from bin or tc?eg i want to get the printout of a program directly after execution from the c window itself.
3.3 Rating
View Answer
What is the difference between the following statements?
int a[4]={1,2,3,4};
int a[]={1,2,3,4);
3.8 Rating
View Answer
There is any methodology in which we can print a string in c without using semicolon(;)
suggest me if there is ?
3.0 Rating
View Answer
I want source code of series of prime numbers.
3.4 Rating
View Answer

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