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PROGRAM: MCA (REVISED FALL 2012)
SEMESTER: FIRST
SUBJECT CODE & NAME: MCA1020- PROGRAMMING IN C
CREDIT: 4
BK ID: B1639
MAX. MARKS: 60
Q.1:
Define operators. Briefly explain about any four Operators in C.
ANS:
C supports a rich set of
operators. An operator is a symbol that tells the computer to perform certain
mathematical or logical manipulations. Operators are used in programs to manipulate
data and variables. They usually form a part of the mathematical or logical
expressions.
Q2. Differentiate
between while and do-while statements [5+5] 10
Answer.
1. In
while loop the condition is tested first and then the statements are executed if the condition turns out to
be true.
be true.
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,
Q4.
Define structure. What is the syntax for defining a structure? Write a simple
program using structure.
Answer:
Definition:
A Structure definition creates a
format that may be used to declare structure variables. For e.g., Consider a
book database consisting of book name, author, number of pages and price.
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 the given name, having as its value the given replacement text. After that (for the rest of
the current source file), wherever the preprocessor sees that name, it will
replace it with the replacement text. The name follows the same rules as
ordinary identifiers (it can contain only letters,
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");
The mode string "r"
indicates reading. Mode "w" indicates writing, so we could open
output.dat for output
Get fully solved assignment, plz drop a mail with your sub code
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Charges for mba rs 125/subject and rs 700/semester only.
For other rs 125/subject only
if urgent then call us
on 08791490301, 08273413412
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