C++

C++ Programming

Slip11

Q.1) Write a C++ program to find area and volume of cylinder using Inline function.
[Marks 15]

Solution

#include<iostream.h>
#include<conio.h>
inline void volume(int r,int h)
{
  float m;
  m=3.14*r*r*h;
  cout<<"Volume of cylinder:"<<m<<endl;
}
inline void area(int r,int h)
{
 float m;
 m=2*3.14*r*h+2*3.14*r*r;   //A=2ãrh+2ãr2
 cout<<"Area of cylinder:"<<m<<endl;
}
void main()
{
   int r,h;
 clrscr();
 cout<<"Enter the value of r & h:";
 cin>>r>>h;
 volume(r,h);
 area(r,h);
 getch();
}


Output

Enter the value of r & h:
4                                                                             
5                                                                             
Volume of cylinder:251.199997                                                 
Area of cylinder:226.080002


Q.2) Create a class College containing data members as College_Id, College_Name,
Establishment_year, University_Name. Write a C++ program with following member
functions:
i. To accept ‘ n’ College details
ii. To display College details of a specified University
iii. To display College details according to a specified establishment year
(Use Array of Object and Function overloading) [Marks 25]     


Soluution                                             
                                     
#include<iostream.h>
#include<conio.h>
#include<stdio.h>
#include<string.h>
class college
{
 private:
int c_id;
char cname[20];
int year;
char uname[30];
int s[20];
 public:
void accept();
void display();
void search(char uni[]);
void search(int y);

};
void college:: accept()
{
 cout<<"\nEnter the college id:";
 cin>>c_id;
 cout<<"Enter the college name:";
 gets(cname);
 cout<<"Enter the Estabilish year:";
 cin>>year;
 cout<<"Enter the University name:";
 gets(uname);
}
void college:: display()
{
 cout<<"\nCollege id:"<<c_id;
 cout<<"\nCollege name:"<<cname;
 cout<<"\nEstabilish year:"<<year;
 cout<<"\nUniversity name:"<<uname;
}
void college:: search(char uni[])
{
 if((strcmp(uname,uni))==0)
 {
  display();
 }
}
void college:: search(int y)
{
 if(year==y)
 {
  display();
 }
}
void main()
{
  college c[10];
  int i,n,y;
  char uni[20];
  clrscr();
  cout<<"Enter how many details u want:";
  cin>>n;
  for(i=0;i<n;i++)
  {
   c[i].accept();
  }
 cout<<"\nEnter the University name to search:";
  gets(uni);
  for(i=0;i<n;i++)
  {
   c[i].search(uni);
  }
  cout<<"\n\nEnter the year:";
  cin>>y;
  for(i=0;i<n;i++)
  {
   c[i].search(y);
  }
  getch();
}


Output

Enter how many details u want:

2

Enter the college id:123
Enter the college name:sarhad
Enter the Estabilish year:2015
Enter the University name:pune

Enter the college id:321
Enter the college name:morden
Enter the Estabilish year:2016
Enter the University name:mumbai

Enter the University name to search:pune

College id:123
College name:sarhad
Estabilish year:2015
University name:pune

Enter the year:2016

College id:321
College name:morden
Estabilish year:2016
University name:mumbai