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COMPLETE SOLVED FINALTERM PAPER CS201- Introduction to Programming 2010

FINALTERM  EXAMINATION

Spring 2010

CS201- Introduction to Programming

Marks: 58

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

*.doc is _____________ by type.

.

       Sequential File

       Random Access File

       Data File

       Record File

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

Which of the following is NOT a preprocessor directive?

       #error

       #define

       #line

       ► #ndefine

 

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

The return type of operator function must always be void.

       True

       False

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

What does (*this) represents?

       The current function of the class

       The current pointer of the class

       The current object of the class

       A value of the data member

 

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

The statement cin.get (); is used to,

       Read a string from keyboard

       Read a character from keyboard

       Read a string from file

       Read a

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

 When we do dynamic memory allocation in the constructor of a class, then it is necessary to provide a destructor.

       True

       False

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

 Overloaded new operator function takes parameter of type size_t and returns

        void (nothing)

       void pointer

       object pointer

       int pointer

Question No: 8      ( 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: 9      ( Marks: 1 ) - Please choose one

 C++ is a case-sensitive language

       True

       False

Question No: 10      ( 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

       include

       #include 

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

 A template function must have only generic data types.

       True

       False

 

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

 Template class can not have static variables.

       True

       False

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

What will be the correct syntax to assign an array named arr of 5 elements to a pointer ptr?

       *ptr = arr ; 

       ptr = arr ;

       *ptr = arr[5] ;

       ptr = arr[5] ; 

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

What will be the correct syntax to access the value of fourth element of an array using pointer ptr?

       ptr[3]

       (ptr+3)

       *(ptr+3)

        

 

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

 If most significant bit of un-signed number is 1 then it represents a positive number.

       True

       ► False

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

 If there is a symbol (& sign) used with the variable name followed by data type then it refers to _____ and if & is being used with variable name then it refers to _____.

       Address of variable, reference variable

       Reference variable, value of variable

       Reference variable, address of variable

       Address of variable, value of variable

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

 We can also do conditional compilation with preprocessor directives.

       True

       False

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

 The default value of a parameter can be provided inside the ________________

       function prototype

       function definition

       both function prototype or function definition

       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

 What purpose do classes serve?

       Data encapsulation

       Providing a convenient way of modeling real-world objects

       Simplifying code reuse

       All of the given options 

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

Every class contains _______________.

       Constructor

       Destructor

       Both a constructor and a destructor

       None of the given options

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

 new operator is used to allocate memory from the free store during

       Compile Time

       Run Time

       Link Time

       None of the given options

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

 When an object of a class is defined inside another class then,

      Destructor of enclosing class will be called first

  Destructor of inner object will be called first

       Constructor and Destructor will be called simultaneously

       None of the given options

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

 It is possible to define a class within another class.

       True

       False

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

 New and Delete are also used with ___________ and data types as well.

       Class, Objects

       Structures, Pointers

       Both Class and structures

       None of above

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

 With New keyword, data types and class members are initialized with meaningful values instead of garbage.

       True

       False

Question No: 27      ( Marks: 2 )

 How many arguments a Unary Operator take? Can we make a binary operator as unary operator?

Ans: Unary operator takes only one aurgument like i++ or i— (Post increment or post decrement operators for intergers) or ++i,--i  (Pre increment or pre decrement operators for intergers) ,we can not make Unary operator as binary or binary as Unary operator.

Question No: 28      ( Marks: 2 )

 Which arithmetic operators cannot have a floating point operand?

Ans:

Modulus operator

This operator can only be used with integer operands ONLY

Question No: 29      ( Marks: 2 )

 What are manipulators? Give one example.

Ans:

The manipulators are like something that can be inserted into stream, effecting a change in the behavior. For example, if we have a floating point number, say pi (л), and have written it as float pi = 3.1415926 ; Now there is need of printing the value of pi up to two decimal places i.e. 3.14 . This is a formatting functionality. For this, we have a manipulator that tells about width and number of decimal points of a number being printed.

Some manipulators are parameter less. We simply use the name of the manipulator that works. For example, we have been using endl, which is actually a manipulator, not data. When we write cout endl ; a new line is output besides flushing the buffer.

Actually, it manipulates the output stream.

Question No: 30      ( Marks: 2 )

 Write down piece of code that will declare a matrix of 3x3. And initialize all its locations with 0;

Ans:

int matrix [3] [3] ;

matrix [0] [0] = 0;

matrix [0] [1] = 0;

matrix [0] [2] = 0;

matrix [1] [0] = 0;

matrix [1] [2] = 0;

matrix [1] [2] = 0;

matrix [2] [0] = 0;

matrix [2] [1] = 0;

matrix [2] [2] = 0;

we can also do it as given below

int matrix [3][3] = { 0 }; //all elements 0 

  No: 31      ( Marks: 3 )

 Which one (copy constructor or assignment operator) will be called in each of the following code segment?

1) Matrix m1 (m2);

2) Matrix m1, m2;

m1 = m2;

3) Matrix m1 = m2;

Ans:

1) Matrix m1 (m2);   copy constructor

2) Matrix m1, m2;   

m1 = m2;              assignment operator

3) Matrix m1 = m2;  assignment operator

Question No: 32      ( Marks: 3 )

 What will be the output of following function if we call this function by passing int 5?

template T reciprocal(T x) {return (1/x); }

Ans:

1/5

Question No: 33      ( Marks: 3 )

 Identify the errors in the following member operator function and also correct them.

math * operator(math m);

math * operator (math m)

{

     math temp;

     temp.number= number * number;

     return number;

   

}

ANS:

The errors are in the arguments of the member operation function and also in the body of operator member function.

Correct function should be

math *operator(math *m);

math *operator (math *m)

{

     math temp;

     temp = m;

     temp.number= number * number;

     return temp.number;

   

} 

Question No: 34      ( Marks: 5 )

 Write a program which defines three variables of type double which store three different values including decimal points, using setprecision manipulators to print all these values with different number of digits after the decimal number.

Ans:

#include

#include

int main ()

{

  double x1 = 12345624.72345

double x2 =  987654.12345

double x3 =  1985.23456

  cout setprecision (3) x1 endl;

  cout setprecision (4) x2 endl;

cout setprecision (5) x3 endl;

  return 0;

} 

Question No: 35      ( Marks: 5 )

 What are the advantages and disadvantages of using templates?

Ans:

Many thing can be possible without using templates but it do offer several clear advantages not offered by any other techniques:

Advanatages:

 • Templates are easier to write than writing several versions of your similar code for different types. You create only one generic version of your class or function instead of manually creating specializations.

• Templates are type-safe. This is because the types that templates act upon are known at compile time, so the compiler can perform type checking before errors occur.

 • Templates can be easier to understand, since they can provide a straightforward way of abstracting type information.

• It help in utilizing compiler optimizations to the extreme. Then of course there is room for misuse of the templates. On one hand they provide an excellent mechanism to create specific type-safe classes from a generic definition with little overhead.

Disadvantages:

On the other hand, if misused

• 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: 36      ( Marks: 5 )

 Suppose a program has a math class having only one data member number.

Write the declaration and definition of operator function to overload + operator for the statements of main function.

         math obj1, obj2;

         obj2= 10 + obj1  ;  

Ans:

#include

math

{

mth operator + (obj1,obj2)

mth operator + (obj1,obj2)

{

 mth operator + (obj1,obj2)

mth operator + (obj1,obj2)

}

}

……………………………………………………………………………

 

FINALTERM  EXAMINATION

 

 

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

There are mainly -------------------- types of software

       ► Two

       ► Three

       ► Four

       ► Five

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

seekg() and write() are functionally _________________ .

       ► Different

       ► Identical

       ► Two names of same function

       ► None of the above

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

 When a pointer is incremented, it actually jumps the number of memory addresses

       ► According to data type

       ► 1 byte exactly

       ► 1 bit exactly

       ► A pointer variable can not be incremented

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

setw is a parameterized manipulator.

       ► True

       ► False

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

 eof( ), bad( ), good( ), clear( ) all are manipulators.

       ► True

       ► False

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

In functions that return reference, use __________variables.

       ► Local

      ► Global

       ► Global or static

       ► None of the given option

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

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: 8      ( Marks: 1 ) - Please choose one

The compiler does not provide a copy constructor if we do not provide it.

       ► True

       ► False


plz share the Assignment No.4 of CS201 last date is 16

Write a program using getline() member function to inputs a string up to delimiter character comma (,) and then display the string on the screen

please help

its not downloading proprly plz do it error free

this file is not downloading please change it and give the file again.

plzzzzzz do something that it can be dowenload thankss

 nina (mcs )  ya folder donwload nai hu ga ..kun k site .rar format folder ku support nai karti hai 

so is ko one time he phar sakti hon then next nai
aur ye jo oper api ne papers dey han wo bi downlod nai ho re
infact open he nai ho re

nina (mcs ) ma api walay folder hi ki bat kar raha hun wu .rar format ma hai na..

or baqi ya ju upper wala text hai is ku ap copy kar k apni word kii file ma paste kar sakti hu na 

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