FINALTERM EXAMINATION
Spring 2009
CS201- Introduction
to Programming (Session - 1)
Question No: 1 ( Marks: 1
) - Please choose one
To access the data members of structure _______
is used.
► dot operator (.)
► * operator
► à operator
► None of given.
Question No: 2 ( Marks: 1
) - Please choose one
What does 5 ^ 6 , evaluate to in decimal where
‘^’ is Exclusive OR operator?
► 1
► 2
► 3
► 4
Question No: 3 ( Marks: 1
) - Please choose one
If constructor contains a return statement in
its body then compiler will give __________
► No error
► Syntax error
► Logical error
► Run time error
Question No: 4 ( Marks: 1
) - Please choose one
We can use New keyword inside of Class
Constructor.
► True
►False
Question No: 5 ( Marks: 1
) - Please choose one
When an operator function is define as member
function for a Unary operator then the number of argument it take is/are,
► Zero
► One
► Two
► N
arguments
The declarator of Plus (+) member operator
function is
► Class-Name operator
+ (Class-Name rhs)
► operator
Class-Name + ( )
► operator
Class-Name + ( rhs)
► Class-Name operator
+ ( )
Question No: 7 ( Marks: 1
) - Please choose one
Friend function of a
class is ______________ .
► Member
function
► Non-member function
► Private
function
► Public
function
Question No: 8 ( Marks: 1
) - Please choose one
We can also create an array of user define data
type.
► True
►False
Question No: 9 ( Marks: 1
) - Please choose one
What is the sequence of event(s) when
deallocating memory using delete operator?
► Only block of memory is deallocated for objects
► Only
destructor is called for objects
► Memory is deallocated first before calling destructor
► Destructor
is called first before deallocating memory
Question No: 10 ( Marks: 1
) - Please choose one
Deleting an array of objects without specifying
[] brackets may lead to memory leak
► True
►False
Question No: 11 ( Marks: 1
) - Please choose one
Which of the
following data type(s) can operate on modulus operator ‘%’?
► float, int
► float, double
► int
► char
Question No: 12 ( Marks: 1
) - Please choose one
Array is passed by value to a function by
default.
►True
► False
Question No: 13 ( Marks: 1
) - Please choose one
With template function, the compiler
automatically detects the passed data and generates a new copy of function
using passed data.
►True
► False
Question No: 14 ( Marks: 1
) - Please choose one
What will be the correct syntax to initialize
all elements of two-dimensional array to value 0?
► int
arr[2][3] = {0,0} ;
► int
arr[2][3] = {{0},{0}} ;
► int
arr[2][3] = {0},{0} ;
► int
arr[2][3] = {0} ;
Question No: 15 ( Marks: 1
) - Please choose one
When an operator function is define as member
function then operand on the left side of operator must be an object.
►True
► False
Question No: 16 ( Marks: 1
) - Please choose one
break statement can be used outside a loop or
switch statement.
►True
► False
Question No: 17 ( Marks: 1
) - Please choose one
The keyword_______ is used to return some value
from a function.
► return
► break
► continue
► goto
Question No: 18 ( Marks: 1
) - Please choose one
Every data member or
function inside the structure is ___ by default whereas everything declared
inside a class is ____ by default.
► private,
public
►public,
private
► private,
protected
► public,
protected
Question No: 19 ( Marks: 1
) - Please choose one
Which of the following is true for the C++
statement given below?
int &ref = val ;
► It
creates a synonym for variable ‘val’
► It
creates an alias for variable ‘val’
► It’s
a new name for variable ‘val’
►All
of the given options
Question No: 20 ( Marks: 1
) - Please choose one
If overloaded plus operator is implemented as
non-member function then which of the following statement will be true for the
statement given below?
obj3 = obj1 + obj2 ;
► obj2
will be passed as an argument to + operator whereas obj2 will drive the +
operator
► obj1
will drive the + operator whereas obj2 will be passed as an argument to +
operator
► Both
objects (obj1, obj2) will be passed as arguments to the + operator
► Any
of the objects (obj1, obj2) can drive the + operator
Question No: 21 ( Marks: 1
) - Please choose one
Unary operator implemented as member function
takes ____ arguments whereas non-member function takes _____ arguments.
► One,
zero
►Zero,
one
► One,
two
► Two,
one
Question No: 22 ( Marks: 1
) - Please choose one
The input/output streams cin and cout are
________ therefore have _______.
► Structures, function
► Objects, member
functions
► Functions, objects
► None of the given options
Question No: 23 ( Marks: 1
) - Please choose one
If a symbolic constant has been defined, it
will be an error to define it again.
► True
► False
Question No: 24 ( Marks: 1
) - Please choose one
Every class contains _______________.
► Constructor
► Destructor
► Both a constructor
and a destructor
► None of the given
options
Question No: 25 ( Marks: 1
) - Please choose one
new and delete keywords are _____________ in
C++ language.
► Built-in- Function
► Operators
► Memory Allocation Function
► None of the
given options
Question No: 26 ( Marks: 1
) - Please choose one
Consider the following code segment.
class M {
public:
M &operator+(const M &);
...
};
p + q
//code of line implies that
p.operator+(q)
...
Let assume if p and q are class objects then function is
implemented as _______
► Member function
► Non-member
function
► Friend
function
► None
of the given options
Question No: 27 ( Marks: 1
) - Please choose one
Assignment
operator is -------------------------associative.
► right
► left
►binary
► unary
Question No: 28 ( Marks: 1
) - Please choose one
Static variable which is defined in a function is
initialized __________.
► Only once during its life time
► Every time the
function call
► Compile time of the
program
► None of the above
Question No: 29 ( Marks: 1
) - Please choose one
Wecan not define a variable of user-defined
data type in the class.
► True
►False
Question No: 30 ( Marks: 1
) - Please choose one
A constructor that will create a new object
with a full copy of the other object, is copy is known as ___________
► deep
copy
► shallow
copy
► constructor
copy
► none
of the options
Question No: 31 ( Marks: 1 )
What is the use
of reference data type?
A reference data type is a variable that can contain an
address. The reference data types in Java are arrays, classes and interfaces.
You'll hear often say that Java does not have pointers. Yet, you could consider
a reference data type to be a pointer
Question No: 32 ( Marks: 1 )
What are the
main types of operators in terms of number of arguments they take?
The difference is in the number of arguments used by the function.
In the case of binary operator overloading, when the function is a member
function then the number of arguments used by the operator member function is
one (see below example). When the function defined for the binary operator
overloading is a friend function, then it uses two arguments.
Question No: 33 ( Marks: 2 )
What is the this pointer? Give an
example of its use
In a C++ program, if you create
object A of class X, you can then obtain the address of A by using the
"this" pointer. The address is available as a local variable in the
non-static member functions of X, and its type is const X*. The
"this" pointer works because C++ creates instances of its data members,
and it keeps one copy of each member function.
Question No: 34 ( Marks: 2 )
What are manipulators? Give one example.
Manipulators are operators used in C++ for formatting
output. The data is manipulated by the programmer’s choice of displayed endl
manipulator. This manipulator has the same functionality as the ‘\n’ newline
character.
Question No: 35 ( Marks: 3 )
What will be the output of following functions
if we call these functions three times?
1)
void func1(){
int x = 0;
x++;
cout << x << endl;
}
Output will be:
1
1
1
1
1
2)
void func2(){
static int x = 0 ;
x++;
cout << x << endl ;
}
Output will be:
1
2
3
2
3
Question No: 36 ( Marks: 3 )
If the requested memory is not available in the
system then what does calloc/malloc and new operator return?
malloc returns a void pointer to the allocated space or NULL
if there is insufficient memory available. To return a pointer to a type other
than void, use a type cast on the return value. The storage space pointed to by
the return value is guaranteed to be suitably aligned for storage of any type
of object. If size is 0, malloc allocates a zero-length item in the heap and
returns a valid pointer to that item.
By default, malloc does not call the new handler routine on
failure to allocate memory. You can override this default behavior so that,
when malloc fails to allocate memory, malloc calls the new handler routine in
the same way that the new operator does when it fails for the same reason.
Question No: 37 ( Marks: 3 )
If we want to send the data by reference and
don’t want that original data should be affected then what can we do to prevent
any change?
Question No: 38 ( Marks: 5 )
Write down the disadvantages of the templates.
The disadvantages of templates are:
• Templates can make code difficult to read and follow
depending upon coding style.
• They can present seriously confusing syntactical problems
esp. when the code is large and spread over several header and source files.
• Then, there are times, when templates can
"excellently" produce nearly meaningless compiler errors thus
requiring extra care to enforce syntactical and other design constraints. A
common mistake is the angle bracket problem.
Question No: 39 ( Marks: 5 )
The following code segment has errors. Locate
as many as you can and explain briefly.
class Circle // no need to enter
colon here , so I removed it
{
private : //colon missing
double centerX;
double centerY;
double radius;
public: //colon missing
void setCenter(double, double);
void setRadius(int);
};//semi colon missing
Question No: 40 ( Marks: 10 )
Write a program
which consists of two classes, Date and Person.
Date class should contain three
data members day, month, year and setter and getter
function for these data members. Date class should also contain showdate()
member function to display date.
Person class should contain three
data members Name, Address, and Bday, where Name and Address are
char pointer while Bday(Date of birth) is of type Date, Person class should
further contain two member functions Display() and setdate().
In main program Create an object
of Class person and call the member functions with it.
Please
find the Answer in following Box
|
#include <stdio.h>
#include <iostream>
#include <cstring>
using namespace std;
class Date
{
public:
int day;
int month;
int year;
public:
Date()
{
day=0;
month=0;
year=0;
}
void setDay(int);
void setMonth (int);
void setYear(int);
int getDay();
int getMonth();
int getYear();
void showDate();
};
void Date: :setDay(int d)
{
if{d<1 | | d>31)
cout<<"Invalid month Renter it";
cin>>d;
}
day=d;
}
void Date: :setMonth (int
m)
{
if(m<1 | | m>12)
{
cout<<"Invalid month Renter it";
cin>>m;
}
month=m;
}
void Date: :setYear (int y)
{
year=y;
int Date: :getDay()
{
return day;
}
int Date: :getMonth()
{
return month:
}
int Date: :getYear()
{
return year;
}
void Date: :showDate()
{
cout<<day<<"-"<<month<<"-"<<year<<end1;
}
Class Person
{
public:
char *Name;
char *Address
Date Bday;
public:
Student()
{
Name=new char[20];
Address=new char[10];
cin.getline(Name,20);
cout<<"Enter Address:";
cin.getline(Address,10);
}
void setDate()
{
cout<<"Enter Day:";
cin>>Ad_date.day;
cout<<"Enter month:";
cin>>Ad_date.month;
cout<<"Enter Year:";
cin>>Ad_date.year;
}
void Display()
{
cout<<"Name: "<<end1;
cout<<"Address: "<<Address<<end1;
cout<<"Date of Birth: ";
Ad-date.showDate();
}
};
void main()
{
Person object;
object.setDate();
object.Display();
system("pause");
}
|
Question No: 41 ( Marks: 10 )
Write a C++ program that contains a class
‘myClass’ having two data members of type int.
The class must have
·
A default constructor which must initialize all the data members to
their meaningful values.
·
A destructor with no implementation.
·
Setter member functions to set all data members of class
·
Getter member functions to get all data members of class
In main function of the program
5.
Prompt the user to enter the number of objects to be created.
6.
Dynamically allocate memory to objects according to the size entered by
user.
7.
De-allocate memory that was allocated to objects
Find solution in following box:
|
#include <stdio.h>
#include <iostream>
#include <cstring>
using namespace std;
class myclass
{
public:
int a;
int b;
int *iptr, *sptr;
construct{int,int.int}
void seta(int);
void setb(int);
void setc(int);
int geta();
int getb();
int getc();
};
void Person: :seta(int aa)
{
a=aa;
}
void Person: :setb (int bb)
{
b=bb;
}
void Person: :setc (int cc)
{
c=cc;
}
main()
{
int num;
cout<<"Enter the
number of objects to be created";
cin>>num;
for (int i =1;i==num;i++)
{
Person i_
}
}
|
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