Welcome to Rohith's C++ website

Index of programs:Set 2

Uses function overloading (in class) and operator overloading

Area of rectangle and square uses function overloading

Find sum of digits of number and concatenate a string using function overloading

Complex number addition uses Operator Overloading

Overloading four basic aritthematic operators Operator overloading

Meter Centimeter addition and printing in accurate formats using operator overloading

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Program1:

Program 2:

#include<iostream.h>
#include<math.h>
#include<conio.h>
#include<stdio.h>

/*
   Author        : Rohith.R
   Email         : rrohithr@gmail.com
   Category      : Begineer
   Program       : To find sum of digits of number and sum of strings(concatenation) using function overloading
   Meant For     : Plus Two students,Kerala

*/
void sum(float,float);
void sum(float);
void sum(char[],char[]);
void main()
{
float x,y;
int option;
do
{
cout<<"\n Option 1:  Sum of 2 nos"
      "\n Option 2:  Sum of digits of number"
      "\n Option 3:  Sum of strings"
      "\n Option 4:  Quit"
      "\n Option ?:"; cin>>option;
switch(option)
{
case 1:
cout<<"\n Enter two nos";
cin>>x>>y;
sum(x,y);
break;
case 2:
cout<<"\n Enter a number";
cin>>x;
sum(x);
break;
case 3:

char text1[20],text2[20];
cout<<"\n Enter Ist";
gets(text1);

cout<<"\n Enter 2nd";
gets(text2);
sum(text1,text2);
break;
case 4:
default:
return;
}
getch();
}while(option<5);
}

void sum(float x,float y)
{
cout<<"\n Sum of two numbers is"<<x+y;
}

void sum(float x)
{
int s=0,re=0;
while(x!=0)
{
re=fmod(x,10);
s=s+re;
x=x/10;
}
cout<<"\n The sum of digits is"<<s;
}

void sum(char text[],char text2[])
{
char dtext[40];
for(int i=0;text[i]!='\0';i++)
dtext[i]=text[i];
for(int j=0;text2[j]!='\0';j++,i++)
dtext[i]=text2[j];
dtext[i]='\0';
cout<<"Concatenated value is"<<dtext;
}

Program 3:

#include<iostream.h>
#include<conio.h>
#include<math.h>
/*
   Author        : Rohith.R
   Email         : rrohithr@gmail.com
   Category      : Begineer
   Program       : To find the sum of two complex numbers.Famous example for operator overloading
   Meant For     : Plus Two students,Kerala

class COMPLEX
{
float real,imag;
public:
COMPLEX operator +(COMPLEX);
void assigner();
void printer();
};
void COMPLEX::assigner()
{
cout<<"\n\n Enter real part:";
cin>>real;
cout<<"\n\n Enter imaginary part";
cin>>imag;
}
COMPLEX COMPLEX::operator+(COMPLEX a)
{
 COMPLEX temp;
 temp.real=real+a.real;
 temp.imag=imag+a.imag;
 return(temp);
 }
 void COMPLEX::printer()
 {
 if(imag<0)
 cout<<real<<"-i"<<abs(imag);
 else
 cout<<real<<"+i"<<abs(imag);
 }

void main()
 {
 COMPLEX x,y,z;
 clrscr();
 cout<<"\n Enter Ist complex number";
 x.assigner();
 cout<<"\n Enter 2nd complex number";
 y.assigner();
 cout<<"\n The Ist complex number is :";
 x.printer();
 cout<<"\n The 2nd complex number is :";
 y.printer();
 z=x+y;
 cout<<"\n The sum of two complex number is:";
 x.printer();
 cout<<"\n Press any key to continue";
 getch();
 }

Program 4:

#include<iostream.h>
#include<conio.h>

/*
   Author        : Rohith.R
   Email         : rrohithr@gmail.com
   Category      : Begineer
   Program       : To overload four basic arithematic operators
   Meant For     : Plus Two students,Kerala

*/
class FLOAT
{
float x;
public:
void assign();
FLOAT operator+(FLOAT);
FLOAT operator-(FLOAT);
FLOAT operator*(FLOAT);
FLOAT operator/(FLOAT);
void printer();
};

void FLOAT::assign()
{
cout<<"\n Enter value you would like to operate on";
cin>>x;
}
void FLOAT::printer()
{
cout<<x;
}
FLOAT  FLOAT::operator+(FLOAT ob)
{
FLOAT temp;
temp.x=x+ob.x;
return(temp);
}
FLOAT FLOAT::operator-(FLOAT ob)
{
FLOAT temp;
temp.x=x-ob.x;
return(temp);
}
FLOAT FLOAT::operator*(FLOAT ob)
{
FLOAT temp;
temp.x=x*ob.x;
return(temp);
}
FLOAT FLOAT::operator/(FLOAT ob)
{FLOAT temp;
 if(ob.x!=0)
 {
 temp.x=x/ob.x;
 return(temp);
 }
 else
 {
  cout<<"\n Error division by zero";
  temp.x=0;
  }
  return(temp);
 }

void main()
{
FLOAT a,b,c;
a.assign();
b.assign();
c=a+b;
clrscr();
cout<<"\n The sum of two object variables is =:";
c.printer();
c=a-b;
cout<<"\n The difference of two object variables is =:";
c.printer();
c=a*b;
cout<<"\n The product of two object variables is=";
c.printer();
c=a/b;
cout<<"\n The divisiom between two object variables is=";
c.printer();
cout<<"\n Press any key to continue";
getch();

}

Program 5:

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