BCA112 – Programming in C

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DRIVE

fall 2017

PROGRAM

Bachelor of Computer Application-BCA

SEMESTER

I

SUBJECT CODE & NAME

BCA112 – Programming in C

Assignment Set -1

1 What is the basic structure of C Program?

Answer: Structure of C Program

i) Starting of main function

The compulsion function is the main function that would be done as program for addition of two integer numbers void main()

{

ii) Variable declaration

To declare variable we must have the awareness of variable name convention, data type and syntax for declaration etc. int a,b,c;

Or

2 Distinguish between pass by value and pass by reference with the help of an example.

Answer: Difference between pass by value and pass by reference.

Pass by Value                                            Pass by Reference

Passes an argument by value.                 Passes an argument by reference.

Specifying the ByVal keyword.               Specifying the ByRef keyword.

The procedure code does not have        The procedure code gives a direct reference to the

any access to the

3 Explain different type of Arithmetic Operators in C.

Answer: The basic operators for performing arithmetic are the same in many computer languages:

+ addition

- subtraction

* multiplication

/ division

% modulus (remainder)

The - operator can be used in two ways: to subtract two numbers (as in a - b), or to negate one number (

Assignment Set -2

1 a) Write a program to print the largest of three numbers.

b) Write a program to find the factorial of a number.

Answer: a.  Program to print the largest of three numbers

#include<stdio.h>

main()

{

int a,b,c,big;

printf (“Enter three numbers”);

scanf (“%d %d %d”, &a, &b, &c);

if (a>b) // check whether a is greater than b if true then

if(a>

2 Explain different functions in C to handle Error during I/O operations.

Answer: The standard I/O functions maintain two indicators with each open stream to show the end-of-file and error status of the stream. These can be interrogated and set by the following functions:

#include <

3 Define macro. How we can declare a macro statement? Explain with an example.

Answer: A preprocessor line of the form

#define name text

defines a macro with the given name, having as its value the given replacement text. After that (for the rest of the

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