Program Of GET PUT Function In C

#include<stdio.h>
#include<conio.h>
#include<stdlib.h>
#include<string.h>
 

main()
 

{
 

clrscr();
 

FILE *f1,*f2,*f3;
 

int i,a,m,n;
 

printf("Enter No. Of Char");
 

scanf("%d",&m);
 

printf("\n Contens Of Main File=");
 

f1=fopen("Main","w"); 

for(i=1;i<=m;i++)
 

{
 

scanf("%d",&n);
 

if(n==-1)
 

break;
 

putw(n,f1);
 

}
 

fclose(f1);
 

f1=fopen("Main","r");
 

f2=fopen("ODD","w");
 

f3=fopen("EVEN","w");
 

a=getw(f1);
 

while(a!=EOF)
 

{
 

if(a%2==0)
 

{
 

putw(a,f3);
 

}
 

else
 

{
putw(a,f2);
 

}
 

a=getw(f1);
 

} 

fclose(f1);
 

fclose(f2);
 

fclose(f3);
 

f2=fopen("ODD","r");
 

f3=fopen("EVEN","r");
 

printf("Content of ODD File \n");
 

while(a=getw(f2)!=EOF) 

{
 

printf("%d\n",a);
 

}
 

printf("Content Of Even File\n ");
 

while(a=getw(f3)!=EOF)
 

{
 

printf("%d\n",a);
 

}
 

fclose(f2);
 

fclose(f3);
 

getch();
 

}

Program Of Opening a File In C++

#include<iostream.h>

#include<conio.h>

#include<fstream.h>

main()

{

    clrscr();

    char FirstName[30], LastName[30];

    int Age;

    char FileName[20];

    cout << "Enter First Name: ";

    cin >> FirstName;

    cout << "Enter Last Name:  ";

    cin >> LastName;

    cout << "Enter Age ";

    cin >> Age;

    cout << "\nEnter the name of the file you want to create: ";

    cin >> FileName;

    ofstream Students(FileName,ios::app);  // FIle open

     Students << FirstName << "\n" << LastName << "\n" << Age;

  

    getch();

}

Program To Find Area Of Circle In C++

     #include<iostream.h>

#include<conio.h>

main()

{

clrscr();

float r,area;

cout<<"Enter Redius=";

cin>>r;

area=3.14*r*r;

cout<<area;

getch();

}

Program To Find Area of Circle Using Static Member Function In C++

#include<iostream.h>

#include<conio.h>

class test

{

                                    private:           //static Data Member   
static int a;

                              static float pi;       // Static Data Member

public:

                          void static display()        // Static Member 
Function

{

cout<<"\n Main Class Value is="<<pi*a*a;

}

} ;

float test :: pi = 3.14;   // Static Data Member Initialization

int test :: a = 5;   //Static Data Member Initialization

main()

{

clrscr();

test t1;

t1.display();

getch();

}