C++ & Object Oriented Programming Lab Manualcse.gec.edu.in/wp-content/uploads/2017/03/C.docx · Web...

C++ & Object Oriented Programming Lab Manual

LAB MANUALC++ & Object Oriented

Programming Lab(3rd sem CSE)

PREPARED BY

Asst.Prof.Santosh Kumar Satapathy

DEPARTMENT OF CSE

GANDHI ENGINEERING COLLEGE


BECS7212 C++ & Object Oriented Programming Lab

1. Programs on concept of classes and objects.(1 class)

2. Programs using inheritance. (1 class)

3. Programs using static polymorphism. (1 class)

4. Programs on dynamic polymorphism. (1 class)

5. Programs on operator overloading. (1 class)

6. Programs on dynamic memory management using new, delete operators.(1 class)

7. Programs on copy constructor and usage of assignment operator. (1 class)

8. Programs on exception handling. (1 class)

9. Programs on generic programming using template function & template class.(1 class)

10. Programs on file handling. (1 class)

Lab Objective

At the end of the course students should be familiar with the main features of the C++ language.

Be able to write a C++ program to solve a well specified problem. Understand a C++ program written by someone else. Be able to debug and test C++ programs; Understand how to read C++ doc library documentation and reuse library

code. To make the students understand the features of object oriented principles

and familiarize them with virtual functions, templates and exception handling.

To make the students to develop applications using C++.



Lab Outcome

Students will be able to apply the computer programming techniques to solve practical problems.

Students will be able to understand the concepts and implementation of constructors and destructors.

Students will be able to develop software applications using object oriented programming language in C++

Student can be able to understand and use the basic programming constructs of C++

Students are able to learn C++ data types, memory allocation/deallocations, functions and pointers.

Students are able to apply object oriented programming concepts to software problems in C++

List of Experiment beyond Syllabus (At least 2)

To perform the write operation within a file.

Program for read the content of a file.



3. To perform the write operation within a file.


Exp. No Exp. to be conducted

1

1. Write a program to enter mark of 6 different subjects and find out the total mark (Using cin and cout statement) 2. Write a function using reference variables as arguments to swap the values of pair of integers.3. Write a inline function to find largest of three numbers.4 Write a program to find the factorial of a number using recursion.

2

1. Define a class to represent a bank account which includes the following members as Data members:a) Name of the depositor b)Account Number c)Withdrawal amount d)Balance amount in the accountMember Functions:a) To assign initial values b)To deposit an amount c) To withdraw an amount after checking the balance d) To display name and balance.2. Write the above program for handling n number of account holders using array of objects.3. Write a C++ program to compute area of right angle triangle, equilateral triangle, isosceles triangle using function overloading concept.

3

1. Write a C++ program to swap the values two integer members of different classes using friend function .2. Write a C++ program for addition of two complex numbers using friend function (use constructor function to initialize data members of complex class) .

41. Define a class string and overload = = to compare two strings and + operator for concatenation of two strings.2. Write a program for overloading of Unary ++ operator.


4.Program for read the content of a file.

Experiment 1:

1. Write a function using reference variables as arguments to swap the values of pair of integersAns:-Pseudo code:

swap(x,y)

begin

set z=xset x=yset y=z

end

Output:enter a,b



5 7a=7 b=5

2. Write a inline function to find largest of three numbersAns:-Pseudo code max(a, b, c) begin

return a>b&&a>c?a:b>a&&b>c?b:c end

Output:enter x,y,z

5 7 9

maximum=9

3. Write a function power() to raise a number m to a power n. The function takes a double value for m and int value for n and returns the result correctly. Use a default value of 2 for n to make the function to calculate squares when this argument is omitted. Write a main that gets the values of m and n from the user to test the function.Ans:-

Pseudocode:power(m,n)beginp=1for i=0 to n by 1

dop=p*mend forreturn(p) end

Output:



CHOICES

1) Only Value of M2) Value for both M and N

ENTER YOUR CHOICE:-1Enter Value for M:-2.5Power function when default argument is used =6.25ENTER YOUR CHOICE:-2Enter Value for M and N:-2.5 3Power function when actual argument is use =15.625

VIVA QUESTIONS

1.List the different types of parameter passing techniques.2.What are reference variable?3. What is an inline function ?4. what is a default argument ?5. Define Inline Function?

Experiment 2:

1. Define a class to represent a bank account which include the following members as

Data members :

1. Name of the depositor 2. Account Number3. Withdraw amount4. Balance amount in the account

Member Functions:

1. To assign initial values2. To deposit an amount3. To withdraw an amount after checking the balance4. To display name and balance.

Write a main program to test the program.



Pseudo code:

Bankname

acno

actype

bal

opbal()

deposit()

withdraw()

display()

opbal()beginPRINT"Enter Name :-"INPUT namePRINT"Enter A/c no. :-"input acnoprint"Enter A/c Type :-"input actype;print "Enter Opening Balance:-"input bal

end deposit()

beginprint"Enter Deposit amount :-"set deposit=0input depositset deposit=deposit+balprint depositset bal=deposit

endwithdraw()

begin withdrawprint balprint"\nEnter Withdraw Amount :-"input withdrawset bal=bal-withdrawprint bal;



end display()

beginprint "DETAILS"print nameprint acnoprint actypeprint bal

end

Output:Choice List1) To assign Initial Value2) To Deposit3) To Withdraw4) To Display All Details5) EXIT

Enter your choice :-1

call to opbal member functionEnter Name :-Suren kumar SahuEnter A/c no. :-17717Enter A/c Type :-SavingEnter Opening Balance:-5000


call to deposit member function Enter Deposit amount :-1000Deposit Balance =6000


call to withdraw member function Balance Amount =6000Enter Withdraw Amount :-2000After Withdraw Balance is 4000


call to display member function "DETAILS"

name Suren kumar SahuA/c. No 17717A/c Type SavingBalance 4000

Enter your choice :-5Exit from programme contorl

2. Write the above program for handling n number of account holders using array of objects for data initialize and displaying all records.

Outputenter how many records 5

call to opbal member function 5 timesEnter Name :-Suren kumar Sahu



Enter A/c no. :-17717Enter A/c Type :-SavingEnter Opening Balance:-5000

Enter Name :-Santosh kumar SatapathyEnter A/c no. :-17718Enter A/c Type :-SavingEnter Opening Balance:-3000

Enter Name :-Ramesh kumar SamantrayEnter A/c no. :-17719Enter A/c Type :-SavingEnter Opening Balance:-4000

Enter Name :-Rasmita PandaEnter A/c no. :-17720Enter A/c Type :-SavingEnter Opening Balance:-5000

Enter Name :-Rajesh Kumar MohantyEnter A/c no. :-17721Enter A/c Type :-SavingEnter Opening Balance:-5000

call to display member function 5 times"DETAILS"

name Suren kumar SahuA/c. No 17717A/c Type SavingBalance 5000

name Santosh Kumar SatapathyA/c. No 17718A/c Type SavingBalance 3000

name Ramesh Kumar SamantrayA/c. No 17719A/c Type SavingBalance 4000

name Rasmita PandaA/c. No 17720A/c Type SavingBalance 5000

name Rajesh Kumar MohantyA/c. No 17721A/c Type SavingBalance 5000

3. Write a C++ program to compute area of right angle triangle, equilateral triangle ,scalene triangle using function overloading concept.

Pseudo code:



area(a,b)

beginreturn 0.5*a*b

end

area( a)

beginreturn sqrt(3)/4)*a*a

end

area( a,b,c)

beginfloat sset s=(float)(a+b+c)/2return sqrt s*(s-a)*(s-b)*(s-c)

end

Outputarea of scalene triangle sqrt 8.4375area of equilateral triangle area of right angled triangle 4.375

VIVA QUESTIONS1. What are the basic concepts of OOPS?2. What are objects?3. What is a class?4. List out the characteristics of OOP.5. Write the syntax of class declaration



Experiment 3:

1. Write a C++ program to swap the values two integer members of different classes using friend function

Pseudo code:


class1value1indata( int a)display(void)

exchange (class1 &,class2 &)


exchange ( &x, &y)

begin

set temp=x.value1;set x.value1=y.value2;set y.value2=temp;

end

Outputvalues before exchange:value1=100value2=200values after exchange :value1=200value2=100

2. Write a C++ program for addition of two complex numbers using friend function (use constructor function to initialize data members of complex class)

Pseudocode:

complexxy

Complex()


Class2Value2

indata( a)display(void)

exchange (class1 &,class2 &)


complex( real, imag)complex sum( complex , complex)

show(complex )

complex()begin

set x=0set y=0

endcomplex( real, imag)

beginset x=realset y=imag

end

sum( c1, c2)begin

set complex c3set c3.x=c1.x+c2.xset c3.y=c1.y+c2.yreturn c3

endshow( c)

beginprint c.xprint c.y

end

OutputSet the value of real and imag through parameterized constructor

a=3.1+j5.65

b=2.75+j1.2

c=5.85+j 6.85

VIVA QUESTIONS

1. What is a friend function? 2. What are the special characteristics of friend function ? 3. How the objects are used as function argument? 4. What are Friend functions? Write the syntax



5. Write some properties of friend functions.

Experiment 4:

1. Define a class string and overload == to compare two strings and + operator for concatenation two strings

Pseudo code:

String*sl

string()string(char *s1)void show()string operator+( &x, &y)

operator==( &x, &y)



string()begin

set s=0set l=0

endstring(char *s1)

beginset l=strlen(s1)set s=new char[l+1]strcpy(s,s1)

endshow()

beginprint s

end

operator==( &x,&y)

beginif(strcmp(x.s,y.s)==0)

return 1else

return 0end if

endoperator +( &x,&y)

beginset string zset z.l=x.l+y.lset z.s=new char[z.l+1]strcpy(z.s,x.s)strcat(z.s,y.s)return z

endOutput Set the value of string through parameterized constructor

P=GECq=BBSRCalling to overload operator ==

both strings are not equal



Calling to overload operator + GECBBSR

2. Write a program for overloading of Unary ++ operator.

Pseudo code:

abc()begin

set m=8set n=9

end

void show()begin

print m,nend

operator++()begin

set m=m+1set n=n+1

end

Output

Set the value of m and n through default constructor

m=8 n=9


abcm,n

abc()void show()

operator++()


call to show function

8 9

calling to overload operator ++9 10

VIVA QUESTIONS1. What is operator overloading?2. What is the purpose of using operator function? Write its syntax.3. Write at least four rules for Operator overloading.4. How will you overload Unary & Binary operator using member functions?5. How will you overload Unary and Binary operator using Friend functions?

Experiment 5:

1. Define two classes polar and rectangle to represent points in the polar and rectangle systems. Use conversion routines to convert from one system to the other

Pseudo code:

rectangularx,y

rectangular()polar(rectangular rect)



operator rectangular()void input()void output()

rectangular()begin

set x=0set y=0

endrectangular(a,b)begin

Set x=aSet y=b

enddouble getx()begin

return xenddouble gety()begin

return yendvoid input()begin

print “ENTER THE COORDINATES"input x,y

endvoid output()begin

print xprint y

end

polar

theta,r

polar ()polar(rectangular rect)operator rectangular()void input()void output()

polar ()begin



set theta=0set r=0

endpolar(rectangular rect)begin

Set r=sqrtrect.getx()*rect.getx()+rect.gety()+rect.gety()Set theta=atan(rect.gety()/rect.getx())Set theta=(theta*180)/pi

endoperator rectangular()begin

set x,yset atheta=theta*pi/180set x=r*cos(atheta)set y=r*sin(atheta)return rectangular(x,y)

end

void input()begin

print”ENTER THE POLAR COORDINATE: "input r,theta

end

void output()begin

print rinput theta

end

Output-----------

CONVERSION-----------

2.POLAR TO RECTANGULAR:

ENTER THE COORDINATES 2.0 9.0rectangular coordinates are:(0.0,20)

2. Write a C++ program to perform matrix addition using operator overloading concept.

Pseudo code:

Matrix

a[100][100], m,n

void getdata()



void show()matrix operator+(matrix &x,matrix &y)

getdata()beginset i,j;print"enter m,n:"input m,n

for i=0 to m by 1do

for j=0 to n by 1 do print "enter a number:"input a[i][j]end for

end forend

show()beginint i,j;for i=0 to m by 1

dofor j=0 to n by 1

do print a[i][j]end for

end forend

operator+(&x,&y) begin int i,j

matrix zfor i=0 to m by 1

dofor j=0 to n by 1

doz.a[i][j]=z.a[i][j]+x.a[i][j]*y.a[i][j]

end forend for

end

Output

enter m,n:2 2

FOR p OBJECT



------------------

enter a number:a[0][0] = 5




FOR q OBJECT

------------------





Calling to overload operator +

7 13

20 25

VIVA QUESTIONS

1.How an overloaded operator can be invoked using member functions?

2. How an overloaded operator can be invoked using Friend functions?

3. List out the operators that cannot be overloaded using Friend function.

4. Explain basic to class type conversion with an example.



Experiment 6:1. C++ Program to calculate the area and perimeter of rectangles using concept of inheritance.

Pseudocode:


Area

area(float l,float b)

Perimeter

float peri(float l,float b)


area( l, b)

begin

return l*b

end

peri(l,b)

begin

return 2*(l+b) end

get_data( )

begin print "Enter length: " input length print"Enter breadth: " input breadth

end

calc()

beginprint area(length,breadth)print peri(length,breadth)


Rectangle

length, breadth

void get_data( ) void calc()


end

OutputEnter length: 5Enter breadth:7area=35perimeter=24

2. Consider an example of declaring the examination result. Design four classes student, exam, sports and result. The student has data members such as rollno ,name. Create the class exam by inheriting the student class. The exam class adds data members representing the marks scored in 2 subjects and sport class contains sports mark. Derive the result from exam-class,sports class and it has own data members like total, avg. Write the interactive program into model this relationship.

Pseudocode:


studentrno;

nm[30];get_nput_n

sportsscore

void get_s (int a)

testpart1part2

get_m (int x, int y)put.m (void)


STUDENT CLASS

get_n ( a, *n) begin

set rno = astrcpy(nm,n)

end

put_n (void) begin

print rno,nmend

TEST CLASS

get_m ( x, y)

begin Set part1= x Set part2=y

end

put.m (void)begin

print part1,part2end

SPORTS CLASS

get_s (a) beginset score = a end

put_s (void)beginprint scoreend

RESULT CLASS


resultint totalfloat avg

void show (void)


show (void)

begin

set total = part1 + part2 + score

set avg=(float)(total/3)

put_n ( )put_m ( )put_s ( ) print totalprint avg

endOutput:Roll No.12 name Satyamarks obtained:part1 = 30part2 = 35sports wt.: 7total score= 72avg score= 24.0VIVA QUESTIONS

1. What is meant by inheritance?

2. What is meant by single inheritance?

3. What is multilevel inheritance?

4. What are the Access specifier used in Inheritance?

5.Write the uses of virtual base class?

Experiment 7:

1. Create a base class called shape, this class to store two double type values that could be used to compute the area of figures. Derive two specific classes called triangle and rectangle from the base shape. Add tp the base class, a member function getdata() to initialize base class data members and another member function display_area() to compute and display area of figures.. Make display_area as a virtual function and redefine the function in the derived class to suit their requirements..Using these three classes, design a program that will accept dimensions of a triangle or a rectangle interactively and display area.



Pseudo code:

CLASS SHAPEgetxy()begin

print"enter x,y:"input x,y

end

display_area()begin

print"displaying area of shape..."endCLASS TRIANGLEgetz()begin

print "enter z:"input z

enddisplay_area()begin

set double sset s=(x+y+z)/2print sqrt s*(s-x)*(s-y)*(s-z)


shapex,ygetxy()display_area()

trianglezgetz()

display_area()

rectangle

display_area()


end

CLASS RECTANGLEdisplay_area()begin

print "area of rectangle="print x*y

end

Output:enter option 1.triangle 2.rectangleoption: 1enter x,y: 5 7enter z:9area of traingle=17.41option : 2enter x,y: 5 6area of rectangle=3

2. Run the above program with following modificationi. Make shape class as abstract class with display_area() as pure virtual function

ii. Use constructor function to initialize the data members of base class not through the getdata()


shapex,yshape(int x1,int y1)display_area()


triangleztriangle(x1,y1,z1)display_area()

CLASS SHAPE

shape(x1,y1)begin

set x=x1set y=y1

enddisplay_area()begin

print"displaying area of shape..."end

CLASS TRIANGLEtriangle(x1,y1,z1):shape(x1,y1)begin

set z=z1end

display_area()begin

double sset s=(x+y+z)/2print "area of traingle="print sqrt(s*(s-x)*(s-y)*(s-z))

end

CLASS RECTANGLErectangle(x1,y1):shape(x1,y1)beginenddisplay_area()begin

Print "area of rectangle="


rectangle

rectangle(x1,y1)display_area()


Print x*yend

Output:enter option 1.triangle 2.rectangle

option 1

enter x,y:5 7

enter z:9

area of traingle=17.41

area of rectangle=12

VIVA QUESTIONS

1. What is meant by Abstract base class?2. Define Virtual Functions3. Define an abstract class.4. What is a virtual function?5. What is a pure virtual function?

Experiment 8:

1. Write an interactive program to compute square root of a number. The input value must be tested for validity . If it is negative, the user defined function my_sqrt() should raise an exception.

Pseudo code:my_sqrt( a)

begintrybegin

if (a<0) throw a

else



print sqrt(a)end trycatch(x)begin

print ”number must not be negative for finding square root”end catch

end

Output:enter a number:25

square root =5

enter a number: -4

number must not be negative for finding square root

2. Write a program in C++ that illustrate the mechanism of validating array element references

Pseudo code:

operator []( i)beginif (i<0 || i>=max)

throw i

elsereturn a[i]

end

Output:trying to refer a[1]…

Calling to overload []

3

trying to refer a[13]…

Calling to overload []

out of range in array references…


arraya[max]

operator[](int i)


VIVA QUESTION

1. Define Exception Handling2. What are the type of Error?3. Define try and catch.4. What are the type of Error?

Experiment 9:

1. Write a c++ program to find maximum of two data items using function template

Pseudo code:

T max(T a,T b)begin

if (a>b)return a

elsereturn b

end



Output:

enter two characters: a ccenter a,b:5 77enter p,q:5.2 7.57.5

2. Write a class template to represent a generic vector. Include member functions to perform the following task

a. To create a vectorb. Sort the elements in ascending orderc. Display the vector

Pseudo code:

arrayT *a;int n;

void getdata()void putdata()void sort( )

getdata()begin

int iprint ”enter how many no:”input nset a=new T[n]for i=0 to n by 1do

print”enter a number:”input a[i]

end forend

putdata()begin

for i=0 to n by 1do

Print a[i]end for

end sort( )



begin T k;int i,j;

for i=0 to n by 1do

for j=0 to n by 1do

if (a[i]>a[j])do

set k=a[i]set a[i]=a[j]set a[j]=k

end if end for end forend

Output:enter how many no:5

enter a number:

5 8 2 4 1

After Sorting

1 2 4 5 8

enter a number:

5.2 8.7 2.3 4.5 1.1

After Sorting

1.1 2.3 4.5 5.2 8.7

VIVA QUESTIONS

1. Define Template.2. What is meant by Function Template.3. Write the syntax for Function template?4. What is use of Template?



Experiment 10:

1. Write a c++ program for matrix multiplication with following specificationsa. Use constructor dynamic memory allocation for matrixb. Use getdata() function to input values for matrixc. Use show() to display the matrixd. Use mul() to multiply two matrices

Pseudo code:


matrix**a m,n

matrix()void getdata()void show()~matrix()mul(matrix &x,matrix &y)


matrix()beginset iprint "enter m,n:"input m,nset a=new int*[m]for i=0 to m by 1set a[i]=new int[n]end

getdata()beginset i,j;for i=0 to m by 1do

for j=0 to n by 1 do print "enter a number:"input a[i][j]end for

end forend

show()beginset i,jfor i=0 to m by 1do

for j=0 to n by 1 do

print a[i][j]end for

end forend

~matrix()begin

int i;for i=0 to m by 1delete a[i]delete a

end

matrix mul(matrix &x,matrix &y) begin int i,j,k

matrix zfor i=0 to m by 1do



for j=0 to n by 1 do z[i][j]=0;

for k=0 to n by 1 do

z[i][j]=z[i][j]+x[i][k]*y[k][j] end for

end for end for

return zend

Output:enter m,n:2 2Enter the matrix of size2x22 32 3Enter the matrix of size2x24 54 5The matrix for object p:2 32 3The matrix for object q:4 54 5The resultant matrix20 2520 25

2. Modify the above program as followa. Use operator*() for matrix multiplication instead of mul()b. Make operator*() as friend function

Pseudo code:


matrix**a;m,n;

matrix()void getdata()void show()~matrix()operator*(matrix &x,matrix &y)


matrix()beginint iprint"enter m,n:"input m,nset a=new int*[m]for i=0 to m by 1set a[i]=new int[n]end

getdata()beginint i,jfor i=0 to m by 1do

for j=0 to n by 1doprint"enter a number:"input a[i][j]end for

End forend

show()beginint i,jfor i=0 to m by 1do

for j=0 to n by 1

doprint a[i][j]end for

end forend

~matrix()begin

int i;for i=0 to m by 1

delete a[i]delete a

endmatrix operator*(&x,&y) begin int i,j,k

matrix zfor i=0 tox. m by 1do

forj=0toy.n by 1do

set z.a[i][j]=0for k=0 to x.m by 1doset z.a[i][j]=z.a[i][j]+x.a[i][k]*y.a[k][j]end for

end forend for



return end

Output:enter m,n:2 2Enter the matrix of size2x22 32 3Enter the matrix of size2x24 54 5The matrix for object p:2 32 3The matrix for object q:4 54 5Calling to overload *20 2520 25

3. To perform the write operation within a file.

main()

begin

c,fname[10]

ofstream out

print"Enter File name:"

input fname

out.open(fname)

print "Enter contents to store in file (Enter # at end):\n"

while((c=getchar())!='#')

do

print out.c;

end while

out.close();

endOutput: Enter File name: one.txt Enter contents to store in file (enter # at end)

4.Program for read the content of a file.



main()begin c,fname[10]; print "Enter file name:" input fname; ifstream in(fname) if(!in) do print "File Does not Exist" getch(); return; end if while(in.eof()==0) do in.get(c); print c; end while getch();}

Output: Enter File name: one.txt Master of Computer Applications

VIVA QUESTIONS

1. What are free store operators (or) Memory management operators?

2. What is the purpose of using operator function? Write its syntax

3. What is operator overloading?

4. How will you overload Unary & Binary operator using member functions?

5. How will you overload Unary and Binary operator using Friend functions?


C++ & Object Oriented Programming Lab Manualcse.gec.edu.in/wp-content/uploads/2017/03/C.docx · Web...

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