Constant data member.

Write a C++ program to multiply two rational numbers using constant data member.

Algorithm:

Step 1: Create a class called rational.

Step 2: Declare the data members.

Step 3: Define the member functions.

Step 4: In the main function, create an object.

Step 5: Call the function.

Program Code:

#include<iostream.h>

#include<conio.h>

class rational

{

private:

int num;

int dnum;

public:

rational()

{

num=1;

dnum=1;

}

void get()

{

cout<<"Enter numerator : ";

cin>>num;

cout<<"Enter denomenator : ";

cin>>dnum;

}

void print() const

{

cout<<num<<"/"<<dnum<<endl;

}

void multi(rational r1, rational r2)

{

num=r1.num*r2.num;

dnum=r1.dnum*r2.dnum;

}

};

void main()

{

clrscr();

rational r1,r2,r3;

r1.get();

r2.get();

r3.multi(r1,r2);

r3.print();

getch();

}

Output:

Enter numerator : 3

Enter denomenator :1

Enter numerator : 4

Enter denomenator : 7

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