Write a C++ program to calculate area of circle,sphere and cylinder using base class round-shape

Create a base class round-shape(radius). define three different
shapes as circle, sphere and cylinder(height) from round-shape.
class round-shape
{
protected :float radius;
public:static float pi;
round-shape(float)//default argument
virtual float area()=0;
}
Write a C++ program to calculate area of circle,sphere and cylinder



#include<iostream.h>
#include<conio.h>
class round
{
protected:float radius;
public:static float pi;
       round(float r=0)
       {
       cout<<"\n Enter the radius:-";
       cin>>r;
       radius=r;
       }
       virtual float area()=0;
       };
class circle:public round
{
public:float circle;
       float area()
       {
       circle=pi*radius*radius;
       cout<<"\n Area of circle:-"<<circle;
       return 0;
       }
       };
class sphere:public round
{
public:float sph;
       float area()
       {
       sph=4*pi*radius*radius;
       cout<<"\n Area of sphere:-"<<sph;
       return 0;
       }
};
class cylinder:public round
{
public:float ac;
       float h;
public:cylinder(float height=0)
       {
       cout<<"\n Enter height:-";
       cin>>height;
       h=height;
       }
       float area()
       {
       float tsac,csac,vc,acbc;
       tsac=2*pi*radius*(h+radius);
       csac=2*pi*radius*h;
       vc=pi*radius*radius*h;
       acbc=pi*radius*radius;
       ac=tsac+csac+vc+acbc;
       cout<<"Area of cylinder is:-"<<ac;
       return 0;
       }
};
float round::pi=3.14;
int main()
{
int height;
clrscr();
cout<<"\n\t\t To calculate area of circle\n\n";
circle c;
c.area();
cout<<"\n\t\t To calculate area of sphere\n\n";
sphere s;
s.area();
cout<<"\n\t\t To calculate area of cylinder\n\n";
cylinder cl;
cl.area();
getch();
return 0;
}






============================================
OUTPUT

                To calculate area of circle                                    
                                                                               
                                                                               
Enter the radius:-1                                                           
                                                                               
Area of circle:-3.14         
                                                 
                To calculate area of sphere                                    
                                                                               
                                                                               
Enter the radius:-1                                                           
                                                                               
Area of sphere:-12.56  
                                                       
                To calculate area of cylinder                                  
                                                                               
                                                                               
Enter the radius:-1                                                           
                                                                               
Enter height:-1
Area of cylinder is:-25.120001

Write a cpp program for car passing through toll booth

Imagine a tollbooth at a bridge. a car passing by the booth
is expected to pay a toll. the tollbooth keeps the track of the number
car that gone and total cash amount collected.
create a class tollbooth with the data member
-total number of cars passed
-total toll collected
write necessary member function
1.a constructor that initializes both data member to zero.
2.paying ca(): when any cars passes through the tollbooth. that much
toll gets added into total toll collected and total number of cars passed is
incremented by one
3. nonpaying car(); increment the car total but adds nothing to cash total
4.display(); the total number car passed and total cash collected


#include<iostream.h>
#include<conio.h>
class toolbath
{
int noc,tot;
public:tollbooth(int n=0,int t=0)
       {
       noc=n;
       tot=t;
       }
       void pay()
       {
       int i;
       noc++;
       cout<<"\n Enter the amount to pay toll:-";
       cin>>i;
       tot=tot+i;
       }
       void non_pay()
       {
       noc++;
       }
       void display()
       {
       cout<<"\n Total number of car passed:-"<<noc;
       cout<<"\n Total toll collected:-"<<tot;
       }
};
int main()
{
int n,t,ans;
char ch='y';
clrscr();
cout<<"\n Enter total number of car passed:-";
cin>>n;
cout<<"\n Enter total toll collected:-";
cin>>t;
tollbooth b(n,t);
while(ch=='y'||ch=='Y')
{
cout<<"\n Enter the car type:-";
cout<<"\n Press 1: for paying car";
cout<<"\n Press 2: for non-paying car";
cin>>ans;
if(ans==1)
b.pay();
if(ans==2)
b.non_pay();
cout<<"\n Do you want to continue(Y|N):-";
cin>>ch;
}
b.display();
getch();
return 0;
}

=========================================================

OUTPUT

Enter total number of car passed:-123                                          
                                                                               
Enter total toll collected:-7478                                               
                                                                               
Enter the car type:-                                                           
Press 1: for paying car                                                        
Press 2: for non-paying car1                                                   
                                                                               
Enter the amount to pay toll:-12                                               
                                                                               
Do you want to continue(Y|N):-y                                                
                                                                               
Enter the car type:-                                                           
Press 1: for paying car                                                        
Press 2: for non-paying car1                                                   
                                                                               
Enter the amount to pay toll:-14                                               
                                                                               
Do you want to continue(Y|N):-y                                                

Enter the car type:-
Press 1: for paying car
Press 2: for non-paying car2

Do you want to continue(Y|N):-n

Total number of car passed:-126
Total toll collected:-7504

Write a C++ program using class to overload following binary operators

Write a C++ program using class to overload following binary operators (+,-,*,/).

#include<iostream.h>
#include<conio.h>
class number
{ int a;
public:void get();
       void show();
       number operator +(number);
       number operator -(number);
       number operator *(number);
       number operator /(number);
};
void number:: get()
{
 cout<<"\nenter value";
 cin>>a;
 }
 void number:: show()
 {
 cout<<a;
 }
 number number::operator+(number n2)
 {
 number t;
 t.a=a+n2.a;
 return t;
 }
 number number::operator-(number n2)
 {
 number t;
 t.a=a-n2.a;
 return t;
 }
 number number::operator*(number n2)
 {
 number t;
 t.a=a*n2.a;
 return t;
 }
 number number::operator/(number n2)
 {
 number t;
 t.a=a/n2.a;
 return t;
 }
 int main()
 {
 number n1,n2,n3;
 clrscr();
 n1.get();
 n2.get();
 cout<<"\n First num ";
 n1.show();
 cout<<"\n Second num ";
 n2.show();
 n3=n1+n2;
 cout<<"\n Addition is ";
 n3.show();
 n3=n1-n2;
 cout<<"\n Subtraction is ";
 n3.show();
 n3=n1*n2;
 cout<<"\n Multiplication is ";
 n3.show();
 n3=n1/n2;
 cout<<"\n Division is ";
 n3.show();
 getch();
 return 0;
 }







===================================================
                                                             OUTPUT
Enter value4                                                                   
                                                                               
Enter value2                                                                   
                                                                               
First num4                                                                     
Second num 2                                                                    
Addition is 6                                                                   
Subtraction is 2                                                                
Multiplication is 8                                                             
Division is 2

Write Cpp program to represent bank account using member function

Define a class to represent a bank account which include following member
data member:-
1)name
2)Account number
3)type of account
4)bal.amt
member function:
a.to assign initial value
b.to deposit an account
c.to withdraw an account
d.to display name,account number and balance

#include<conio.h>
#include<iostream.h>
#include<string.h>
int w_amt;
class bank
{
public:int acc_no,bal;
char type[30],name[30];
public:void assign()
       {
       strcpy(name,"Vijay");
       acc_no=111;
       strcpy(type,"saving");
       bal=12000;
       }
       void deposit()
       {
       int amt;
       cout<<"\n Enter the amount which you want to deposit:-";
       cin>>amt;
       bal=bal+amt;
       }
       void withdraw()
       {
       cout<<"\n Enter how much money you want to withdraw";
       cin>>w_amt;
       }
       void display()
       {
       cout<<"\n Name:-"<<name
       <<"\n Account number:-"<<acc_no
       <<"\n Type of account:-"<<type
       <<"\n Balance amount:-"<<bal;
       }
};
int main()
{
bank b;
clrscr();
b.assign();
b.deposit();
b.withdraw();
if(w_amt>12000)
{
cout<<"You do not have that much balance try again";
}
else
b.bal=b.bal-w_amt;
b.display();
getch();
return 0;
}


==============================================

OUTPUT

Enter the amount which you want to deposit:-1200
Enter how much money you want to withdraw200
Name:-Vijay
Account number:-111
Type of account:-saving
Balance amount:-13000

Cpp program to create class telephone to search no name and city

Create a class telephone containing name,telephone number and city as
data members and write necessary member function for the following
-search the telephone number with given name.
-search the name with given telephone number
-search all customer in a given city.

#include<iostream.h>
#include<conio.h>
#include<string.h>
class telephone
{
public:char name[30],city[30];
       int tno;
public:void get()
       {
       cout<<"enter name:-";
       cin>>name;
       cout<<"\nenter telephone number";
       cin>>tno;
       cout<<"\nenter city name:-";
       cin>>city;
       }
       void search(int tnum)
       {
       cout<<"\ntelephone number of given customer:-"<<tnum;
       }
       void search(char n[30])
       {
       cout<<"\ncustomer name of the given number"<<n;
       }
       void search(char ct[30],int tnum)
       {
       cout<<"\n"<<ct<<"  "<<tnum;
       }
};
int main()
{
int i,tno,check;
char name[30],city[30];
telephone t[3];
clrscr();
for(i=0;i<3;i++)
t[i].get();
cout<<"\nsearch the telephone number of the given name";
cout<<"\nenter customer name:-";
cin>>name;
for(i=0;i<3;i++)
{
check=strcmp(name,t[i].name);
if(check==0)
t[i].search(t[i].tno);
}
cout<<"\n\n\nsearch the name of the given telephone number";
cout<<"\nenter telephone no.:-";
cin>>tno;
for(i=0;i<3;i++)
{
if(tno==t[i].tno)
t[i].search(t[i].name);
}
cout<<"\n\n\nsearch all customer in a given city";
cout<<"\nenter city name:-";
cin>>city;
for(i=0;i<3;i++)
{
check=strcmp(city,t[i].city);
if(check==0)
t[i].search(t[i].name,t[i].tno);
}
getch();
return 0;
}

C++ Program to find tax of person salary

Consider the following class person
class person
{
char name[20];
char addr[30];
float salary;
int property;
float tax;
public:\\method
};
calculate tax amount by checking salary and the property of the person
for salary<5000         tax rate=0
for salary>=5000||<=10000    tax rate=14% of salary
for salary>=10000        tax rate=16% of salary
in this tax amount add following amt depending on the size of area
in sqr.foot
for 100 sqr.foot        amt=0
for>1000||<5000            amt=1000
for>5000||<=10000        amt=3000


#include<conio.h>
#include<iostream.h>
class person
{
char name[20],addr[30];
float sal,tax_amt;
int prop;
public:void accept();
       void display();
};
void person::accept()
{
cout<<"\n Enter the name:-";
cin>>name;
cout<<"\n Enter address:-";
cin>>addr;
cout<<"\n Enter salary:-";
cin>>sal;
cout<<"\n Enter how much Rs. of property you have:-";
cin>>prop;
tax_amt=0;
if(sal<5000)
tax_amt=tax_amt+0;
if(sal>=5000&&sal<=10000)
tax_amt=tax_amt+(sal*0.14);
if(sal>=10000)
tax_amt=tax_amt+(sal*0.16);
if(prop==1000)
tax_amt=tax_amt+0;
if(prop>1000&&prop<5000)
tax_amt=tax_amt+1000;
if(prop>5000&&prop<=10000)
tax_amt=tax_amt+3000;
}
void person::display()
{
cout<<"\n Name:-"<<name;
cout<<"\n Address:-"<<addr;
cout<<"\n Salary:-"<<sal;
cout<<"\n Property:-"<<prop;
cout<<"\n Tax Amount:-"<<tax_amt;
}
int main()
{
person p;
clrscr();
p.accept();
p.display();
getch();
return 0;
}

=====================================================
OUTPUT :  -
Enter the name:-ABC
Enter address:-XYZ
Enter salary:-5000
Enter how much Rs. of property you have:-10000

Name:-ABC
Address:-XYZ
Salary:-5000
Property:-10000
Tax Amount:-3700

C++ program for medical shoppee

Create a class medical shoppe containing
-medicine
-qty
-price
medicine details are stored into file medical.txt. when any medicine
has to be sold it is first searched into file. if found the quantity
is decremented that much quantity to be sold.

#include<iostream.h>
#include<conio.h>
#include<fstream.h>
#include<string.h>
#include<iomanip.h>
#include<stdlib.h>
#include<stdio.h>
class medical
{
public:char med[20];
       int qty,price;
public:void accept()
       {
       cout<<"\nenter the medicine name:-";
       cin>>med;
       cout<<"\nenter qty:-";
       cin>>qty;
       cout<<"enter price";
       cin>>price;
       }
       void display()
       {
       cout<<"\nmedicine name:-"<<med;
       flushall();
       cout<<"\nquantity:-"<<qty;
       cout<<"\nprice:-"<<price;
       }
       void search(char n[20],int q)
       {
       int ans=1;
       ans=strcmp(med,n);
       if (ans==0)
       qty=qty-q;
       }

};
int main()
{
medical m[3];
int i,q,ans;
char n[20];
clrscr();
fstream f1;
f1.open("a.doc",ios::trunc|ios::in|ios::out);
cout<<"\n\t\tenter the details\n";
for(i=0;i<3;i++)
{
m[i].accept();
f1.write((char *)&m[i],sizeof(m[i]));
}
f1.seekg(0);
cout<<"\nenter the medicine name which is to be sold:-";
cin>>n;
cout<<"\nhow much quantity you want:-";
cin>>q;
for(i=0;i<3;i++)
{
f1.read((char *)&m[i],sizeof(m[i]));
m[i].search(n,q);
f1.write((char *)&m[i],sizeof(m[i]));
}
cout<<"\n\t\tdisplay of all records in a file\n";
for(i=0;i<3;i++)
{
f1.read((char *)&m[i],sizeof(m[i]));
m[i].display();
}

getch();
return 0;
}


--------------------------------------------------------------------
OUTPUT


                enter the details                                              
                                                                               
enter the medicine name:-per                                                   
                                                                               
enter qty:-34                                                                  
enter price56                                                                  
                                                                               
enter the medicine name:-12                                                    
                                                                               
enter qty:-76                                                                  
enter price45                                                                  
                                                                               
enter the medicine name:-df                                                    
                                                                               
enter qty:-34                                                                  
enter price12                                                                  
                                                                               
enter the medicine name which is to be sold:-df                                
                                                                               
how much quantity you want:-12
                                                                               
                display of all records in a file                               
                                                                               
medicine name:-per                                                             
quantity:-34                                                                   
price:-56                                                                      
medicine name:-12                                                              
quantity:-76                                                                   
price:-45                                                                      
medicine name:-df                                                              
quantity:-22
price:-12