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FINALTERM  EXAMINATION

CS201- Introduction to Programming

 

Question No: 1      ( Marks: 1 ) - Please choose one

 

 

Pointer is a variable which store,

 

       ► Data

 

       ► Memory Address

 

       ► Data Type

 

       ► Values



 

Question No: 2      ( Marks: 1 ) - Please choose one

 

 

All preprocessor directives are started with the symbol______.

 

       ► *

 

       ► +
+

 

       ► @

 

       #



 

Question No: 3      ( Marks: 1 ) - Please choose one

 

 

Within the statement obj1=obj2;   obj1 will call the assignment operator function and obj2 will be passed as an argument to function.

 

 

       True

 

       ► False



 

Question No: 4      ( 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: 5      ( Marks: 1 ) - Please choose one

 

 

The second parameter of operator functions for and >> are objects of the class for which we are overloading these operators.

 

 

 

       True

 

       ► False



 

Question No: 6      ( Marks: 1 ) - Please choose one

 

 

To include code from the library in the program, such as iostream, a directive would be called up using this command.

 

       ► #include “iostream.h”

 

       ► include <iostream.h>

 

       ► include <iostream.h>

 

       #include <iostream.h>



 

Question No: 7      ( Marks: 1 ) - Please choose one

 

 

The number 544.53 must be stored in _____ data type.

 

 

       int

 

       ► short

 

       float

 

       ► char



 

Question No: 8      ( Marks: 1 ) - Please choose one

 

 

A template function can have different type of arguments.

 

       True

 

       ► False



 

Question No: 9      ( Marks: 1 ) - Please choose one

 

 

For which values of the integer _value will the following code becomes an infinite loop?

 

int number=1;

while (true) {

            cout number;

            if (number == 3) break;

            number +=  integer_value; }

 

 

 

     

  any number other than 1 or 2

 

       only 0

 

       ► only 1

 

       ► only 2



 

Question No: 10      ( Marks: 1 ) - Please choose one

 

 

Template class cannot have static variables.

 

       ► True

 

       False



 

Question No: 11      ( Marks: 1 ) - Please choose one

 

 

Which of the following is used with bit manipulation?

 

 

       Signed integer

 

       ► Un-signed integer

 

       ► Signed double

 

       ► Un-signed double



 

Question No: 12      ( Marks: 1 ) - Please choose one

 

 

Structure is a collection of ______________ under a single name.

 

 

       ► Only Functions

 

       Only Variables

 

 

       ► Both Functions and Variables

 

       ► None of the given options

 

 

 

 



 

Question No: 13      ( Marks: 1 ) - Please choose one

 

 

Which of the following is the correct C++ syntax to allocate space dynamically for an array of 10 int?

 

 

 

 

 

 

 

       ► new int(10) ;

 

       ► new int[10] ;

 

       ► int new(10) ;

 

        int new[10];



 

Question No: 14      ( 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: 15      ( Marks: 1 ) - Please choose one

 

 

The first parameter of overloaded stream insertion operator is _________ where second parameter is _______

 

 

 

       ► input stream, object of class

 

       ► object of class, output stream

 

       output stream, object of class

 

       ► object of class, input stream



 

Question No: 16      ( Marks: 1 ) - Please choose one

 

 

We can also do conditional compilation with preprocessor directives.

 

       True

 

       ► False



 

Question No: 17      ( 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: 18      ( Marks: 1 ) - Please choose one

 

 

While calling function, the arguments are assigned to the parameters from _____________.

 

       ► left to right.

 

       ► right to left

 

       ► no specific order is followed

 

       ► none of the given options.



 

Question No: 19      ( Marks: 1 ) - Please choose one

 

 

Classes defined inside other classes are called ________ classes

 

       ► looped

 

       ► nested

 

       ► overloaded

 

       ► none of the given options.



 

Question No: 20      ( Marks: 1 ) - Please choose one

 

 

If we define an identifier with the statement #define PI 3.1415926 then during the execution of the program the value of PI __________.

 

 

 

       ► cannot be replaced

 

 

       None of the given options

 

 

       ► Remain constant.

 

 

       ► can be changed by some operation



 

Question No: 21      ( Marks: 1 ) - Please choose one

 

 

Assignment operator is -------------------------associative.

 

 

 

       ► right

 

 

       left

 

 

       ► binary

 

 

       ► unary

 



 

Question No: 22      ( Marks: 1 ) - Please choose one

 

 

If text is a pointer of class String then what is meant by the following statement?

text = new String [5];

 

       ► Creates an array of 5 string objects statically

 

 

 

       Creates an array of 5 string objects dynamically

 

 

       Creates an array of pointers to string

 

 

 

       ► Creates a string Object

 

 

 

 



 

Question No: 23      ( Marks: 1 ) - Please choose one

 

 

The return type of the operator function for operator is __________.

 

 

       ► class for which we overload operator

 

       ► reference of ostream class (ostream&)

 

 

       ► reference of istream class (istream&)

 

 

       ► void



 

Question No: 24      ( Marks: 1 ) - Please choose one

 

 

The code is written to __________ the program.

 

       ► implement

 

       ► design

 

       ► analysis

 

       ► none of the given options.



 

Question No: 25      ( Marks: 1 ) - Please choose one

 

 

 

Memory allocated at run time is a system resource and it is the responsibility of _____ to de-allocate the memory.

 

 

 

 

 

 

 

       ► System

 

       ► Programmer

 

       ► User of program

 

       ► None of given options



 

Question No: 26      ( Marks: 1 ) - Please choose one

 

 

Templates are not type safe.

 

       ► true

 

       false



 

Question No: 27      ( Marks: 2 )

 

 

Give the general syntax of class template.

 

Answer:

Syntax of class template:

 

template <class T>

 class class-name()

{

 definition of class

};

 

 

 

 

Question No: 28      ( Marks: 2 )

 

 

What is difference between endl and \n?

 

Answer:

The difference between endl and  \n is that endl  is use to start a new line for the next row

And \n is a new line character.

 

 

 

Question No: 29      ( Marks: 2 )

 

 

What is the this pointer? Give an example of its use.

 

Answer:

This pointer is use to points to the current object in programming.

 

Question No: 30      ( Marks: 2 )

 

 

Identify each of the following as function call, function definition and function declaration.

  1. int func(int num1, int num2);

       Function call:

      Function ; Function definition: Integer; Function declaration: Num1

       and Num2

 

 

  1. int func(int, int);

         Function call:

        Function ; Function definition: Integer; Function declaration: integers

       

 

  1. func(5, 6) ;

    

      Function call:

      Function ; Function definition: numbers; Function declaration: 5&6

 

 

  1. int func(int num1, int num2){}

       Function call:

       Function ; Function definition: Integer; Function declaration: Num1 and Num2 from   

       user

 

 

Question No: 31      ( Marks: 3 )

 

 

Consider the following code segment. What will be the output of the following code segment?

 

class class1{

public:

class class2{

public:

class2(){

cout “Calling default constructor of class2\n” ;

}

};

class1(){

cout “Calling default constructor of class1\n” ;

}

} ;

main(){

class1::class2 obj1;

class1 obj2 ;

}

 

 

 

 

Question No: 32      ( Marks: 3 )

 

 

Is it possible to define two functions as given below? Justify your answer.

func(int x, int y)

func(int &x, int &y)

 

Answer:

No, we cannot define two functions as func(intx, inty) func(int &x, int&y) because it’s give an error function not initializing.

 

Question No: 33      ( Marks: 3 )

 

 

What happens when we use new and delete operator?

 

Answer:

When we use new operator to create objects the memory space is allocated for the object and then its constructor is called. Similarly, when we use delete operator with our objects, the destructor is called for the object before deallocating the storage to the object.

 

 

 

 

 

 

Question No: 34      ( Marks: 5 )

 

 

What is the difference between function overloading and operator overloading? 

 

Answer:

Difference b/w function overloading and operator overloading is:

 

In function overloading, the functions have the same name but differ either by the number of arguments or the type of the arguments.

 

Operator overloading is to allow the same operator to be bound to more than one implementation, depending on the types of the operands.

 

 

 

 

Question No: 35      ( Marks: 5 )

 

 

Why the first parameter of operator function for operator must be passed by reference?

 

Answer:

Operator's first parameter must be an ostream passed by reference. Its second parameter, the IntList that is printed, does not have to be passed as a const-reference parameter; however it is more efficient to pass it by reference than by value (since that avoids a call to the copy constructor), and it should not be modified by operator, so it should be a const reference parameter

 

 

Question No: 36      ( Marks: 5 )

 

 

Read the given below code and explain what task is being performed by this function

 

Matrix :: Matrix ( int row , int col )

{

    numRows = row ;

    numCols = col ;

    elements = new ( double * ) [ numRows ] ;

    for ( int  i = 0 ; i < numRows ; i ++ )

            {

        elements [ i ] = new double [ numCols ] ;

        for ( int j = 0 ; j < numCols ; j ++ )

                elements [ i ] [ j ] = 0.0 ;

     }

}

 

 

 

Hint : This function belong to a matrix class, having

Number of Rows = numRows

Number of Columns = numCols

 

Answer:

In this code the matrix function is defined, it get the number of rows from the user and create the row of matrix and then get the columns from the user and create the columns. The New is showing for creating more array space for the data which user enters. The elements [i][j] will print the data in matrix form.

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