Write a Rational class. Recall a rational number is a rational number, composed of two integers with division indicated. The division is not carried out, it is only indicated, as in 1/2, 2/3, 15/32. You should represent rational numbers using two int values, numerator and denominator. #include #include #include using namespace std; class rational { public: /* default constructor set the rational number to 0, (i.e., numerator is 0, denominator is 1) */ rational(); /* Set the invoking object's value from user input */ void input(); /* Display invoking object's value in the standard output, in the form of numerator/denominator */ void output() const; //return the invoking object's numerator int get_numerator() const; //return the invoking object's denominator int get_denominator() const; // Set invoking object to be the sum of op1 and op2 void Add(const rational& op1, const rational& op2); // Set the invoking object to the difference of op1 and op2. void Subtract(const rational& op1, const rational& op2); // Set the invoking object to the product of op1 and op2. void Multiply(const rational& op1, const rational& op2); // Set the invoking object to the Quotient of op1 and op2. void Divide(const rational& op1, const rational& op2); private: int numerator; int denominator; }; int main() { string binary_ops{"+-*/"}; rational op1, result; char oper; cout << "Enter op1 (in the format of p/q): "; result.input(); //Test rational class member function do { cout << "\nEnter operator [+, -, /, *, =, c(lear), a(ccessors), q(uit)]: "; cin >> oper; // Only get operand if needed if (binary_ops.find(oper) != string::npos) { cout << "\nEnter op2 (in the format of p/q): "; op1.input(); } switch (oper) { case '+': result.Add(result, op1); break; case '-': result.Subtract(result, op1); break; case '*': result.Multiply(result, op1); break; case '/': result.Divide(result, op1); break; case '=': cout << "result = "; result.output(); break; case 'c': result = rational(); cout << "\nEnter op1 (in the format of p/q): "; result.input(); break; case 'a': cout << "\nresult's numerator is: " << result.get_numerator(); cout << "\nresult's denominator is: " << result.get_denominator(); break; case 'q': break; default: break; } } while (oper != 'q'); return 0; } //Definitions of all member functions rational::rational() { numerator = 0; denominator = 1; } /* Set the invoking object's value from user input */ void rational::input() { char c; int top, bottom; // keep reading until valid input is entered cin >> top >> c >> bottom; if (denominator <= 0) { cout << "Invalid rational value."; exit(1); } // set the invoking object's numerator, denominator numerator = top; denominator = bottom; } /* Display invoking object's value in the standard output, in the form of numerator/denominator */ void rational::output() const { cout << numerator << "/" << denominator; } //return the invoking object's numerator int rational::get_numerator() const { return numerator; } //return the invoking object's denominator int rational::get_denominator() const { return denominator; } // Set invoking object to be the sum of op1 and op2 void rational::Add(const rational& op1, const rational& op2) { numerator = (op1.numerator * op2.denominator + op2.numerator*op1.denominator); denominator = op1.denominator*op2.denominator; } // Set invoking object to be the sum of op1 and op2 void rational::Subtract(const rational& op1, const rational& op2) { numerator = (op1.numerator * op2.denominator - op2.numerator*op1.denominator); denominator = op1.denominator*op2.denominator; } // Set invoking object to be the sum of op1 and op2 void rational::Multiply(const rational& op1, const rational& op2) { numerator = (op1.numerator * op2.numerator); denominator = op1.denominator*op2.denominator; } // Set invoking object to be the sum of op1 and op2 void rational::Divide(const rational& op1, const rational& op2) { numerator = (op1.numerator * op2.denominator); denominator = op1.denominator*op2.numerator; }
Write a Rational class. Recall a rational number is a rational number, composed of two integers with division indicated. The division is not carried out, it is only indicated, as in 1/2, 2/3, 15/32. You should represent rational numbers using two int values, numerator and denominator.
#include <iostream>
#include <string>
#include <stdlib.h>
using namespace std;
class rational
{
public:
/* default constructor set the rational number to 0, (i.e., numerator is 0, denominator is 1) */
rational();
/* Set the invoking object's value from user input */
void input();
/* Display invoking object's value in the standard output, in the form of numerator/denominator */
void output() const;
//return the invoking object's numerator
int get_numerator() const;
//return the invoking object's denominator
int get_denominator() const;
// Set invoking object to be the sum of op1 and op2
void Add(const rational& op1, const rational& op2);
// Set the invoking object to the difference of op1 and op2.
void Subtract(const rational& op1, const rational& op2);
// Set the invoking object to the product of op1 and op2.
void Multiply(const rational& op1, const rational& op2);
// Set the invoking object to the Quotient of op1 and op2.
void Divide(const rational& op1, const rational& op2);
private:
int numerator;
int denominator;
};
int main()
{
string binary_ops{"+-*/"};
rational op1, result;
char oper;
cout << "Enter op1 (in the format of p/q): ";
result.input();
//Test rational class member function
do {
cout << "\nEnter operator [+, -, /, *, =, c(lear), a(ccessors), q(uit)]: ";
cin >> oper;
// Only get operand if needed
if (binary_ops.find(oper) != string::npos) {
cout << "\nEnter op2 (in the format of p/q): ";
op1.input();
}
switch (oper) {
case '+':
result.Add(result, op1);
break;
case '-':
result.Subtract(result, op1);
break;
case '*':
result.Multiply(result, op1);
break;
case '/':
result.Divide(result, op1);
break;
case '=':
cout << "result = ";
result.output();
break;
case 'c':
result = rational();
cout << "\nEnter op1 (in the format of p/q): ";
result.input();
break;
case 'a':
cout << "\nresult's numerator is: " << result.get_numerator();
cout << "\nresult's denominator is: " << result.get_denominator();
break;
case 'q':
break;
default:
break;
}
} while (oper != 'q');
return 0;
}
//Definitions of all member functions
rational::rational()
{
numerator = 0;
denominator = 1;
}
/* Set the invoking object's value from user input */
void rational::input()
{
char c;
int top, bottom;
// keep reading until valid input is entered
cin >> top >> c >> bottom;
if (denominator <= 0) {
cout << "Invalid rational value.";
exit(1);
}
// set the invoking object's numerator, denominator
numerator = top;
denominator = bottom;
}
/* Display invoking object's value in the standard output, in the form of numerator/denominator */
void rational::output() const
{
cout << numerator << "/" << denominator;
}
//return the invoking object's numerator
int rational::get_numerator() const
{
return numerator;
}
//return the invoking object's denominator
int rational::get_denominator() const
{
return denominator;
}
// Set invoking object to be the sum of op1 and op2
void rational::Add(const rational& op1, const rational& op2)
{
numerator = (op1.numerator * op2.denominator + op2.numerator*op1.denominator);
denominator = op1.denominator*op2.denominator;
}
// Set invoking object to be the sum of op1 and op2
void rational::Subtract(const rational& op1, const rational& op2)
{
numerator = (op1.numerator * op2.denominator - op2.numerator*op1.denominator);
denominator = op1.denominator*op2.denominator;
}
// Set invoking object to be the sum of op1 and op2
void rational::Multiply(const rational& op1, const rational& op2)
{
numerator = (op1.numerator * op2.numerator);
denominator = op1.denominator*op2.denominator;
}
// Set invoking object to be the sum of op1 and op2
void rational::Divide(const rational& op1, const rational& op2)
{
numerator = (op1.numerator * op2.denominator);
denominator = op1.denominator*op2.numerator;
}
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