Diffrent programs in c++ By -Ashutosh Dubey

//Reverse of the string


#include<iostream.h>

#include<conio.h>

#include<stdlib.h>

void main()

{

clrscr();

char a[100];

cout<<"enter any string = ";

cin>>a;

cout<<"\n reverse of given string = ";

cout<<strrev(a);

getch();

}

//Function Overloading

#include<iostream.h>

#include<conio.h>



class ABC

{

private:



float a,b,AREA,r;

public:

void area(float x,float y)

{



AREA=x*y;



cout<<"\nAREA OF RECTANGLE = ";



cout<<AREA<<”\n”;

}

void area(float r1)

{

AREA=(3.14*r1*r1);

cout<<"\nAREA OF CIRCLE = ";

cout<<AREA<<”\n”;

}

};



void main()
{
clrscr();

ABC ob;

float a,b,r;

cout<<"\nenter the value of hight and width = ";

cin>>a>>b;

ob.area(a,b);

cout<<"\nenter the value of radius of circle";

cin>>r;

ob.area(r);

getch();

}





//Array of object



#include<iostream.h>

#include<conio.h>

struct student

{

int age;

char name[20],branch[20];

};



void main( )

{

int i;

clrscr();

student ob[5];

for(i=0;i<5;i++)



{



cout<<"\nPLEASE ENTER THE AGE OF STUDENT = ";

cin>>ob[i].age;

cout<<"\nPLEASE ENTER THE NAME OF STUDENT = ";

cin>>ob[i].name;

cout<<"\nPLEASE ENTER BRANCH OF STUDENT = ";

cin>>ob[i].branch;

cout<<"\n---------------------------------------------------------------";

}



cout<<"\n\nINFORMATION OF STUDENTS = ";

for(i=0;i<5;i++)

{

cout<<"\n\n("<<(i+1)<<") - "<<OB[I].AGE;

cout<<"\n\n("<<(i+1)<<") - "<<OB[I].NAME;

cout<<"\n\n("<<(i+1)<<") - "<<OB[I].BRANCH;

cout<<"\n-------------------------------------------------------------";

}

getch();

}





//operator overloading



#include<iostream.h>

#include<conio.h>

class nike

{

private:

int r,m;

public:

void in( )

{

cout<<"enter the value of r = ";

cin>>r;

cout<<"\nenter the value of m = ";

cin>>m;

}

void out()

{

cout<<"\n\noutput is = ";

cout<<"\n--------------------------------------";

cout<<"\n\nvalue of r = "<<R;

cout<<"\n\nvalue of m = "<<M;

cout<<"\n";

}

void operator ++()

{

r=r+1;

m=m+1;

}

};

void main( )

{

clrscr();

nike ob;

ob.in();

ob.out();

++ob;

ob.out();

getch();

}