ARITHMETIC CALCULATIONS USING FUNCTIONS

ARITHMETIC CALCULATIONS USING FUNCTIONS

#include<iostream.h>

#include<conio.h>

sint menu( );

int add(int, int);

int sub(int, int);

int mul(int, int);

float div(int, int);

void main()

{

 int a,b;

  cout<<"\n\n\t\tCalculator\n\n";

   cout<<"\tEnter Number 1 : ";

    cin>>a;cout<<"\tEnter Number 2 : ";

    cin>>b;switch(menu())

            {case 1:

                 Cout<<"Sum is "<<add(a,b); 

break;

case 2:

cout<<"Difference is "<<sub(a,b);

 break;

case 3:

cout<<"Product is "<<mul(a,b); 

break;

case 4:cout<<"Quotient is "<<div(a,b); 

break;

default:

cout<<"Invalid Choice";

}

}

int menu()

{

int ch;

cout<<"\n\t1.Addition\n\t2.Subtraction\n\t3.Multiplication.\n\t4.Division\n\n\tEnter Your Choice : ";

cin>>ch;

return ch;

}

int add(int a, int b)

{

return a+b;

}

int sub(int a, int b)

{

return a-b;

}

int mul(int a, int b)

{

return a*b;

}

float div(int a, int b)

{

return (float)a/b;

}