INTRO TO C++ COSSIPORE

7/25/2019 INTRO TO C++ COSSIPORE

1/31

KENDRIYA VIDYALAYA SANGATHAN, KOLKATA REGION

Computer Science Question Bn!

"nit # $

"nit % C&pter VSA

'( )r!*

SA I

'$

)r!s*

SA II

'+ )r!s*

LA

' )r!s*

Tot-

Object Oriented Programming in C++

a) Introduction to OOP using C+

+

_ 1 _ 1 (2) 6

b) Constructor& Destructor _ 1 _ _ (1) 2c) Inheritance - - - 1 (1) d) Pointers - - 1 - 1(!)e) Data "i#e $and#ing 1 1 1 - (!) 6

Tot-

I).ORTANT Q"ESTIONS '( OR $ TI)ES*C&pter # Intro/uction to OO. usin0 C11

2%%

Define the term Data Hiding in the context of Object Oriented Programming. Give aSuitable example using a C++ code to illustrate the same.

2

Define a class ravelPlan in C++ !ith the follo!ing descriptions "

Private #embers"

PlanCode of t$pe long

Place of t$pe character arra$ %string&

'umber(of(travellers of t$pe integer

'umber(of(buses of t$pe integer

Public #embers"

) constructor to assign initial values of Plan Code as **, Place as -)gra,

'umber(of(travellers as /, 'umber(of(buses as *

) function 'e!Plan% & !hich allo!s user to enter PlanCode, Place and

'umber(of(travellers. )lso, assign the value of 'umber(of(buses as per the

follo!ing conditions "

Number_of_travellersNumber_of_buses

0ess than 1

23ual to or more than 1 and less than 4

23ual to 4 or more than 4 5

) function Sho!Plan% & to displa$ the content of all the data members on screen.

2%%

6

De'ne u#ti#ee# and u#ti*#e inheritance in contet o, Object Oriented

Programming .ie suitab#e eam*#e to i##ustrate the same

2


2/31

De'ne a c#ass named /DI00IO in C++ ith the ,o##oing descri*tions3

Priate members3

/D_O integer (4anges 1% - 2%%%)

/5 /rra o, characters (0tring)

C7/00 Character

"550 "#oat

Pub#ic embers3

"unction 4ead_Data ( ) to read an object o, /DI00IO t*e

"unction Dis*#a() to dis*#a the detai#s o, an object

"unction Dra-os ( ) to choose 2 students random#

/nd dis*#a the detai#s 8se random ,unction to generate admission nos to

match ith

/D_O

(

)

2%%

9:hat do ou understand - b6 Data 5nca*su#ation and Data ;$iding *e o, t*e string

0ticer o, t*e string

/ member ,unction .et0ticer() to assign the ,o##oing a#ues ,or 0ticer as *er

the gien ">*e3

">*e 0ticeregetarian .455Contains 5gg 577O:on-

egetarian

45D

Pub#ic embers

/ ,unction .et"ood() to a##o user to enter a#ues ,or "oodCode="ood=">*e and

ca## ,unction .et0ticer() to assign 0ticer / ,unction 0ho"ood() to a##o user to ie the content o, a## data members

2%1

!

:rite an to diNerences beteen Constructor and Destructor :rite the ,unction

headers ,or constructor and destructor o, a c#ass ember

2

De'ne a c#ass >ourist in C++ ith the ,o##oing s*eci'cation3

Data embers

carno Q to store us o

Origin Q to store P#ace name

Destination Q to store P#ace name

>*e Q to store Car >*e such as R5S ,or 5conom

Distance Q to store the Distance in ?i#ometers

Charge Q to store the car ,are

ember "unctions

/ contructor ,unction to initia#iTe >*e as R5S and "reight as 2%

/ ,unction Ca#cCharge() to ca#cu#ate "are as *er the ,o##oing citeria3>*e ChargeR5S 16 U DistanceR/S 22 U DistanceR7S !% U Distance

/ ,unction 5nter() to a#o user to enter a#ues ,or carno=origin=destination=t*e and

distance /#so this ,unction shou#d ca## Ca#cCharge() to ca#cu#ate "are/ ,unction 0ho () to dis*#a the content o, a## the data members on screen

2%1

=rite an$ t!o differences bet!een Constructor and Destructor. =rite function headers for

constructor and destructor of a class #ember.

2

%c& Define a class ourist in C++ !ith the follo!ing specification "Data #embers

6 Camo > to store ?us 'o

6 Origin > to store Place name

6 Destination > to store Place name

6 $pe > to store Car $pe such as @2@ for 2conom$

6 Distance > to store the Distance in Ailometers

6 Charge > to store the Car Bare #ember Bunctions

6 ) constructor function to initialie $pe as @2@ and Breight as 1/

6 ) function CalcCharge%& to calculate Bare as per the follo!ing criteria "

$pe Charge


6/31

@ 2 @ *EDistance

@) @ 11EDistance

@ 0 @ 5EDistance

6 ) function 2nter%& to allo! user to enter values for Carno, Origin, Destination, $pe and

Distance. )lso, this function should call CalcCharge%& to calculate Bare.

6 ) function Sho!%& to displa$ the content of all the data members on screen.

C&pter 2 Constructor 3 Destructor2%%

)ns!er the 3uestions %i& and %ii& after going through the follo!ing class"

class Test

{

char Paper[20];

int Marks;

public:

Test () // Function 1

{

strcpy (Paper, Computer)

Marks = 0;

}

Test (char P [] ) // Function 2

{

strcpy(Paper,P);

Marks = 0;

}

Test (int M) // Function 3

{

strcpy(Paper,Computer);

Marks = M;

}

Test (char P[], int M) // Function 4

{

strcpy (Paper, P);

Marks = M;

}

};

%i& =hich feature of Object Oriented Programming is demonstrated using

Bunction *, Bunction 1, Bunction 5 and Bunction 4 in the above class estF

%ii& =rite statements in C++ that !ould execute Bunction 1 and Bunction 4 of

class est.

2

2%%

6/nser the Muestions (i) and (ii) a,ter going through the ,o##oing c#ass3

c#ass Interie

V int monthW

*ub#ic3

Interie (int ) VmonthG WX YYConstructor 1

Interie (Interie&t)W YYConstructor 2

XW

i Create an object= such that it inoes Constructor 1

2


7/31

ii :rite com*#ete de'nition ,or Constructor 2

2%%

9

Answer the questions (i) and (ii) after going through the following

class "class Exam

int Rno,MaxMarks,MinMarks,Marks;

public:

Exam () I /Module 1Rno=l01;MaxMarks=l O O;MinMarks=0;Marks=!";

Exam (int #rno,int #marks) I /Module $

Rno=#rno;MaxMarks=lO O;MinMarks=0;Marks=#marks;%Exam () I /Module &

cout'' ** Exam Oer ** ''endl;

oid *o+ () I /Module

cout''Rno'' :''MaxMarks'' :''MinMarks''endl;cout''

-Marks .ot ''Marks''endl;

G ;

(i) As per Obect Oriented !rogramming" which concept is

illustrated b# $odule % and $odule & together F

(ii) 'hat is $odule referred as F 'hen do #ou think")o/u-e + 4i-- 5e in6o!e/%c--e/ rae#(Boat C) YY "unction 2

V

CoutFFP#aceCodeFF]3]FFP#aceFF]3]FFChargesFFend#WX

`>rae#() YY "unction !

V

CoutFF]>rae# P#an Cance##ed]FFend#W

X

>rae#(intPC=char PZ[=Boat C) YY "unction

V

P#aceCode G PCW strc*(P#ace=P)W Charges G CW

X XWi) In Object Oriented Programming= hat are "unction 1 and "unction

combined together re,erred as #otor '%# &K Option 1 > #otor P%lO &K(ii) ame the ,eature o, Object Oriented Programming= hich is i##ustrated b

"unction 1= "unction 2 and "unction ! combined together

2

C&pter 2 In&eritnce2%%

)ns!er the 3uestions %i& to %iv& based on the follo!ing code" 4

class Medicines

{

char Category[lO];

char Date_of_manufacture[lO];

char Company[20];public:

Medicines();

void entermedicinedetails();

void showmedicinedetails();

} ;

class Capsules: public Medicines

{

protected:

char capsule_name[30];

char Volume_label[20];public:

float Price;

Capsules();

void entercapsuledetails();

void showcapsuledetails();

};

class Antibiotics: public Capsule

{

intDosage_units;


12/31

char Side_effects[20];

intUse_within_days;

public:

Antibiotics() ;

void enterdetails();

void showdetails();

};

%i& Ho! man$ b$tes !ill be re3uired b$ an object of class #edicines and an object

of class )ntibiotics respectivel$F%ii& =rite names of all the member functions accessible from the object of class

)ntibiotics.

%iii& =rite names of all the members accessible from member functions of class

Capsules.

%iv& =rite names of all the data members, !hich are accessible from objects of class

)ntibiotics.2%%

6/nser the Muestions (i) to (iii) based on the ,o##oing code

c#ass stationar

V

char >*eWchar anu,acturer Z1%[W

*ub#ic3

stationar()W

oid 4ead_sta_detai#s( )W

oid Dis*_sta_detai#s( )W

XW

c#ass oce3 *ub#ic stationar

V

intno_o,_t*esWBoat cost_o,_staW

*ub#ic3

oid 4ead_oN_detai#s( )W

oid Dis*_oN_detai#s( )W

XW

c#ass *rinter3 *riate oce

V

intno_o,_usersW

char de#ier_dateZ1%[W

*ub#ic3

oid 4ead_*ri_detai#s( )W

oid Dis*_*ri_detai#s( )W

XW

oid main ( )

V *rinter PrinterW X

i ention the member names hich are accessib#e b Printer dec#ared in

main() ,unction

ii :hat is the siTe o, Printer in btesCodeW

char >ame Z2%[W *rotected3

Boat 0a#arW *ub#ic3

>eacher()W oid 5nter ()W oid 0ho ()W

XW

c#ass Course3 *ub#ic 0tudent = *riate >eacher

V

#ong CCodeZ#O[Wchar CourseameZ 0O[W char 0tartDateZJ[=5ndDateZJ[W*ub#ic3

Course( )W

oid Commence ()W oid CDetai# ()W

X W

(i) :rite the names o, member ,unctions= hich are accessib#e ,rom objects o, c#ass

Course

(ii) :rite the names o, a## the data members= hich isYare accessib#e ,rom member

,unction Commence o, c#ass Course

(iii) :rite the names o, a## the members= hich are accessib#e ,rom objects o, c#ass

>eacher

(i) :hich t*e o, Inheritance 1s i##ustrated in the aboe C++ code eacher()W

oid 5nter()W

oid sho()W


17/31

XW

C#ass Course 3 *ub#ic 0tudent = *riate >eacher

V

7ong CCodeZ1%[W char CourseameZ&%[W

Char 0tartDateZJ[=5ndDateZJ[W

Pub#ic3

Course()W

oid Commerce()Woid CDetai#s()W

XW

(i) :rite the names o, member ,unctions= hich are accessib#e

,rom objects o, c#ass Course-

%ii&=rite the names of all the data members, !hich isRare accessible from

member function Commence of class Course.%iii&=rite the names of all .the members, !hich are accessiblefrom objects ofclass eacher.%iv&=hich t$pe of ;nheritance *s illustrated in the above C++ code F

2%1

2

/nser the Muestions (i) to (i) based on the ,o##oing 3

c#ass COP/

char 7oca tion Z2% [ W

doub#e udget = IncorneW *r otected 3

oid /ccou n ts ( ) W *ub#ic 3

COP/ ( ) W

oid 4egister ( ) W oid 0ho ( ) W

X W

c#a ss "/C>O4 3*ub#ic COP/

char 7ocation ( 2 % ) W int :or ersW*rotected 3

doub#e 0a#ar W oid Com*uter ( ) W

*ub#ic 3

"/C>O4 () W

oid 5nter ( ) W oid0ho ( ) W

X W

c#ass 0$OP 3 *r iate COP/

cha r 7oca t ion Z 2 % [ W , #oat /rea Wdoub#e 0a#e W *ub#ic 3

0$OP ( ) W

oid In*u t ( ) W oid Out*u t ( ) W

X W

%i& 'ame the t$pe of inheritance illustrated m the above C++code.

%ii& =rite the name of data members, !hich arc accessible frommember

functions of class SHOP.

%iii& =rite the names of all the member fonction s, !hich areaccessible


18/31

from objects belonging to class B)CO7ota#= /gW

Pub#ic3

Char Oera##.rade=4emarsZ2%[W4e*ort()W

oid 4ea#uate()W

oid 4Print()W

X W

(i) :hich t*e o, Inheritance is shon in the aboe eam*#e ota#= /gW *ub#ic3

char Oera##.rade= 4emars Z2%[W

4e*ort()W

oid 45a#uate( )W oid 4Print()W

X i

(i) :hich t*e o, Inheritance is shon in the aboe eam*#e et Z[G/*5/CeDri 5 W Code(>et= LL )W

coutFF 5: >5>3 FF>etFFend#W


22/31

2%1

1Bind the output of the follo!ing program "

\inc#ude FiostreamhH oid main ()

V

int Uueen=oesZ [GV##=22=!!=XW ueenGoesW

oesZ 2[+G22W

coutFFueen FFUueenFFend#W

Uueen-G11W ueen+G2W

coutFFo FFUueenFF nd#W ueen++WcoutFF"ina## FFUueenFFend#W

coutFFe Origin FFoesZO[FFend#W

2%1

2Bind the output of the follo!ing program

include 'iostrearn *2

include 'ct3pe *2

t3pede4 c*ar tr50 4 50;

void main%&

N c*ar 67otes;

tr50 8r9%R$.ooO ;

int 8=;7otes=tr

;+*ile (82=& )

tr -8= (isupper (tr>;

G2%1

Obsere the ,o##oing C++ code care,u## and obtain the out*ut= hich i## a**ear on

the screen a,ter eecution o, it

Im*ortant ote 3

/## the desired header '#es are a#read inc#uded in the code= hich are reMuired to run

the code

oid main ( )

V

char U0tringG0$/?>I W

int UPoint=a#ueZ[GV#%=1=9%=1KXW PointGa#ue W coutccUPointcc0tringccend#W 0tring+

+W

Point++ W coutccUPointcc0tringccend# W

X


23/31

C&pter #Dt 9i-e Hn/-in02%%

6oid main( )

V charGS/SW

,stream '#eout(]datadat]=ios33out)W '#eoutFFchW

int * G '#eoutte##g( )W coutFF*W

X

:hat is the out*ut i, the '#e content be,ore the eecution o, the *rogram is the

string ^/C] (ote that] ^are not *art o, the '#e):rite a ,unction to count the number o, ords *resent in a tet '#e named ^P/4/>>]

/ssume that each ord is se*arated b a sing#e b#anYs*ace character and no

b#ansYs*aces in the beginning and end o, the '#ec "o##oing is the structure o, each record in a data '#e named CO7OD/>]

structCO7O

N char Colon$

CodeL*MK

char Colon$'ameL*MK int

'o of PeopleKK=rite a function in C++ to update the file !ith a ne! value of 'o (of(People.he value of Colon$(Code and 'o(of(People are read during the execution ofthe program.

2%%

9Obsere the *rogram segment gien be#o care,u##6 and '## the

b#ans mared as 0tatement 1 and 0tatement 2 using te##g() and

see*() ,unctions ,or *er,orming the reMuired tas-

\inc#ude F,streamhHc#ass Customer

V lon? @no;c*ar 7ame-$0, Mobile-1$;public:

//Aunction to allo+ user to enter t*e @no, 7ame, Mobile

oid Enter();

//Aunction to allo+ user to enter (modi43) mobile number

oid Modi43();

//Anction to return alue o4 @nolon?

.et@no() Breturn @no;C

C;

void Change#obile%&

N

Customer CK

fstream BK

B.open %** CO')C. D) ** , i.os" "binar$ ; ios" "in ; ios"out&

K


24/31

long CnocK RRCustomer no. !hose mobile number needs to be

c"KhanC,ed6. cin99CnocK

!hile %B.read%%charE&C,sieof%C&&&

if %Cnoc::C.GetCno%&&

C.#odif$ %&K

RRStatement *

int Pos:; Ro fin3 the curret position of file pointer V@K6

RRStatement 1

RRo move the file pointer to !rite the .

RRmodified record bac8 onto the file

RRfor the des.ired Cnoc 6 B.!rite% %charE&C,sieof%C&&K

@

B.close%&K2%%

J

Observe the program segment given belo! carefull$ and fill the blan8s mar8ed as Statement

* and Statement 1 using see8g% &, see8p% &, tellp% & and tellg% & functions for performing there3uired tas8.

\ inc#ude F,stream-hH

class P7ODC

{

int Pno Kchar Pname L1M K int Wt$ K

public "

void #odif$Wt$ % &II he function is to modif$ 3uantit$ of a P7ODC

K

void P7ODC " " #odif$Wt$ % &

{

fstream Bile K

Bil.open %JP7ODC.D)J, ios " " binar$ I ios " " in I ios " " out& Kint #PnoK

cout II JProduct 'o to modif$ 3uantit$ "J Kcin99 #Pno K

!hile %Bil.read %%charE& this, sieof %P7ODC& & &

N

if %#Pno: :Pno&

{coutII JPresent Wuantit$"J IIWt$IIendl KcoutII JChanged

Wuantit$"J Kcin99Wt$ K

int Position : RRStatement *

RRStatement 1

Bil.!rite % %charE& this, sieof %P7ODC& & K I I 7e>!riting therecord

G


25/31

Bil.cBil.close% & K

}

=rite a function in C++ to count the no. of J#eJ or J#$J !ords presenttext file JD;)75D/>]=ios33binar f ios33in f ios33out)WInt CInoW

CoutFF]Item o to modi, *rice 3]W cinHHCinoW

:hi#e("i#eread((char U)this=siTeo,(I>5))

V

I,(Cino GG Ino)

V

CoutFF]Present Price3 ]FFPriceFFend#W

CoutFF]Changed Price3]W cinHHPriceW

Int "i#ePos G ___________W YY statement 1

_____________________W 0tatement 2


26/31

"i#erite ((char U) this= siTeo,(I>5))W YY 4e-riting the record

X

X

"i#ec#ose()W

=rite a function in C++ to count the no. of -He or -She !ords present in a text file

-SO7he user shou#d enter the ode# o and the,unction shou#d search and

dis*#a6 the detai#s o, the camera-

C#ass C/54/

V

7ong ode#oW

"#oat egaPie#W

Int oomW

Char Detai#sZ12%[W

Pub#ic3

oid 5nter() VcinHHode#oHHegaPie#HHoomW gets(Detai#s)WX

oid Dis*#a() V

CoutFFode#oFFegaPie#FFoomFFDetai#sFFend#WX

7ong .5tode#o() V return ode#oWX

K

2%1%

Obsere the *rogram segment gien be#o care,u##6 and '## theb#ans mared as 0tatement 1 and 0tatement 2 using te##g() and

see*() ,unctions ,or *er,orming the reMuired tas-

include '4stream*2class

@ustomer

lon? @no;c*ar 7ame-$0, Mobile-1$;public://Aunction to allo+ user to enter t*e @no, 7ame, Mobile

oid Enter();

//Aunction to allo+ user to enter (modi43) mobile numberoid Modi43();

//Anction to return alue o4 @nolon?

.et@no() Breturn @no;C

C;

oid @*an?eMobile()

{


27/31

@ustomer @;

4stream A;

Aopen (**@O75

V

Int InoW

Char InameZ2%[W Boat PriceW

Pub#ic3

oid odi,Price()W YY >he ,unction is to modi, *rice o, a *articu#ar I>5

X3

oid I>5 33 odi,Price()

V

"stream "i#eW

"i#eO*en(^I>5D/>]=ios33binar f ios33in f ios33out)W

Int CInoW

CoutFF]Item o to modi, *rice 3]W cinHHCinoW

:hi#e("i#eread((char U)this=siTeo,(I>5))

V

>>>

*


28/31

I,(Cino GG Ino)

V

CoutFF]Present Price3 ]FFPriceFFend#W

CoutFF]Changed Price3]W cinHHPriceW

Int "i#ePos G ___________W YY statement 1

_____________________W 0tatement 2

"i#erite ((char U) this= siTeo,(I>5))W YY 4e-riting the record

XX

"i#ec#ose()W

X

=rite a function in C++ to count the no. of JHeJ or JSheJ !ords present in atext file JSO7: WK

void Purchase%int W& NWt$ + : WK

int Getino%& N return ;noK


29/31

K

oid Purchae;tem%int Pino, int PWt$&

N

f stream Bi le K

Bile .open % J SOCA .D) J , ios " "binar$ l ios " "in l ios " "@ou t & K Stoc8 S K

;nt Su ccess: O K

!hile % Success:: O S S Bi le . read % % cha.r E& S S, siCeof % S& & &

if % Pino::S .Get ;no %& &

S .Purchase % PWt$& K

((((((((((((((((( RR Statement *

((((((((((((((((( R R Statement 1

Success++K

if% Su ccess:: l coutII JPu rcha se pdated J I Iendl K else

coutII J= rong ;tem 'oJ IIendl K Bi le . close % & K

(i) =rite statement * to position the file pointer to the appropriate

place, so that the data updation is done for there3uired item.

%ii&=rite statement 1 to perform the !rite operation so thatthe updation is

done in the binar$ file.

=rite a function in C++ to read the content of a text fileJD20H;.XJ and displa$ all those lines on screen, !hich areeither

starting !ith @D@ or starting !ith @#@.

=rite a function in C++ to search for the details %Phoneno and calls& of those Phones,

!hich have more than Y calls from a binar$ file -Phones.dat. )ssuming that this

binar$ file contains records objects of class Phone, !hich is defined belo! .

Class Phone

N

c*ar #*oneno-lO;int @alls;

public :

oid .et ()B?ets(#*oneno); cin22@alls;C

oid Lillin?()Bcout''#*oneno''''@al ls''endl;C

int .et@alls ()Breturn @alls;C

K2%1

Bill in the blan8s mar8ed as Statement * and Statement 1, in the program segment givenbelo! !ith appropriate functions for the re3uired tas8.


30/31

class @ustomer

N

long int C'oK RR Customer 'umber

char C'mae L1+MK RR customer 'ame

char 2mailL5+MK RR 2mail of customer

public"

void )llocate%&K RR Bunction to allocate a member

void sho!%&K RR Bunction to sho! customer data

void #odif$2mail%& RR Bunction to modif$ 2mail

N coutII..2nter #odified 2mail ".K

Gets%2mail&K

long int GetCno%& Nreturn C'oK

K

void ChangeData%&

N

fstream BileK

Bile .open %** CS.D) ** , ios" "binar$ ; ios""in ; ios""out& K int Change:O ,0ocationK

long int ChangeCnoK

coutIIJCno > !hose email re3uired to be modified"JK cin99ChangeCnoK

Customer CK

!hile%Z#odif$ Bile.read%%charE&C,sieof %C&&&

N

if %C.GetCno%&::ChangeCno&

N

C .#odif$2mail%& K 0ocation:Bile.tellg%&> sieof %C&K

RRStatement l "o place file pointer to the re3uired position

RRStatement 1"o !rite the object C on to the binar$ file

Change++K

if %Change&

coutI IJ2mail #odified ... ** IIendlK else

coutII JCustomer not found ... ** IIendlK Bile .close%&K

=rite a function CountHisHer % & in C++ !hich reads the contents of a text file

diar#*t+t and counts the !ords His and Her %not case sensitive&.Bor example, if the file contains "

#inak3 *as ?one to *is 4riend9s *ouse Kis 4riend9s

name is Ra3a Ker *ouse is 1$ M 4rom *ere

he function should displa$ the output as


31/31

@ount 4or Kis:$

@ount 4or Ker:l

)ssuming the class ;')G2 as declared belo!, !rite a function in C++ to read the objects of

;')G2 from binar$ file ;')G2.D) an. d displa$

those vintage vehicles, !hich are priced bet!een 1 and 1/.

class ;')G2

N

int 'OK RRehicle 'umber

char DescLlOM K RRehicle Description float PriceK

.public "

void G2%& Nc.in99'OKgets NDesc& Kcin99PriceK void ;2= N&

N

coutII'OIIendl K coutIIDescIIendlK coutIIPriceIIendl K

float 7eturnPrice N& NreturnPriceK

K

Date post:	26-Feb-2018
Category:	Documents
Upload:	dheeraj-singh-jodha
View:	222 times
Download:	0 times

INTRO TO C++ COSSIPORE

Documents