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PROGRAM: BCA Fall 2015
SEMESTER: FIRST
SUBJECT CODE & NAME: BCA1020- PROGRAMMING IN C
CREDIT: 4
BK ID: B1639
MAX. MARKS: 60
Q1. Explain the
history of C language. What are the advantages of C language? [5+5] 10
Answer.
History of C language
The C programming
language was devised in the early 1970s by Dennis M. Ritchie an employee from
Bell Labs (AT&T).
In the 1960s
Ritchie worked, with several other employees of Bell Labs (AT&T), on a
project called Multics. The goal of the project was to develop an operating
system for a large computer that could be used by a
Q2.
Write short notes on:
a)
scanf()
b)
printf()
1.
scanf is used to receive the
data’s.
Syntax for scanf :
scanf(“control_string
1, - - , control_string n”,&variable1, - - - - ,variable n);
Q.3:
Describe about static and external variables.
ANS:
Static Variables
Static variables are defined
within individual functions and therefore have the same scope as automatic variables,
i.e. they are local to the functions in which they are declared. Unlike automatic
variables, however, static variables retain their values throughout the life of
the program. As a result, if a function is exited and then reentered later, the
static variables defined within that function will retain their previous values
Q.4: Distinguish between pass by
value and pass by reference with the help of an example.
ANS:
Pass
by value:
Pass by value may be very
inefficient if the structure is large (i.e., has many members). They have
identical
Q.5:
Define macro. How we can declare a macro statement? Explain with an example.
ANS:
A preprocessor line of the form
#define name text
Defines a macro with
Q.6:What is the use of fopen ()
and fclose () function? List and explain different modes for opening a file.
ANS:
fopen():
To open the file input.dat for
reading you might call
ifp = fopen
("input.dat", "r
Get fully solved assignment. Buy online from website
online store
or
plz drop a mail with your sub code
we will revert you within 2-3 hour or immediate
Charges rs
125/subject and rs 500/semester only.
if urgent then call us on 08791490301, 08273413412
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