overloaded operator + takes two fractions

$overloaded operator + takes two fractions$

/*
Learning C# 
by Jesse Liberty

Publisher: O'Reilly 
ISBN: 0596003765
*/
 using System;

 class Fraction
 {
     private int numerator;
     private int denominator;

     // create a fraction by passing in the numerator
     // and denominator
     public Fraction(int numerator, int denominator)
     {
         this.numerator=numerator;
         this.denominator=denominator;
     }

     // overloaded operator + takes two fractions
     // and returns their sum
     public static Fraction operator+(Fraction lhs, Fraction rhs)
     {
         // like fractions (shared denominator) can be added
         // by adding their numerators
         if (lhs.denominator == rhs.denominator)
         {
             return new Fraction(lhs.numerator+rhs.numerator,
                 lhs.denominator);
         }

         // simplistic solution for unlike fractions
         // 1/2 + 3/4 == (1*4) + (3*2) / (2*4) == 10/8
         // this method does not reduce.
         int firstProduct = lhs.numerator * rhs.denominator;
         int secondProduct = rhs.numerator * lhs.denominator;
         return new Fraction(
             firstProduct + secondProduct,
             lhs.denominator * rhs.denominator
             );
     }

     // return a string representation of the fraction
     public override string ToString()
     {
         String s = numerator.ToString() + "/" +
             denominator.ToString();
         return s;
     }
 }


 public class TesterOverrideToString
 {
     static void Main()
     {
         Fraction f1 = new Fraction(3,4);
         Console.WriteLine("f1: {0}", f1.ToString());

         Fraction f2 = new Fraction(2,4);
         Console.WriteLine("f2: {0}", f2.ToString());

         Fraction f3 = f1 + f2;
         Console.WriteLine("f1 + f2 = f3: {0}", f3.ToString());
     }
 }

1.	An example of operator overloading
2.	More operator overloading
3.	Overload addition for object + object, and for object + int
4.	Overload the + for object + object, object + int, and int + object
5.	Overload shift operator
6.	Overload true and fase for ThreeD
7.	A better way to overload !, \| and & for ThreeD. This version automatically enables the && and \|\| operators
8.	illustrates operator overloading
9.	Demonstrates overloading the addition operator for two class objects
10.	Overloaded operator: whether two Fractions are equal
11.	Overload != operator
12.	Operator Overloading:An Example
13.	Sorting and Searching:Overloading Relational Operators

overloaded operator + takes two fractions : Operator Overloading « Class Interface « C# / C Sharp

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