Help:how to implement Icomparable uisng generics

Question

this is a small portion from my code
public class Rational:IComparable<Rational>
{
// instance variables
private int numerator;
private int denominator;
.
.
.
// interface method with generics
public int CompareTo(Rational otherRational)
{
if (Rational < otherRational)
return -1;
else
if (Rational == otherRational)
return 0;
else
return 1;
}
i have this error message:Rational' is a 'type' but is used like a 'variable'
i need help!

Priyanka · Answer

Hi Prince You have this setting because of the statement: if ( Rational There are two reasons why this statemet is wrong: Rational is a class name which can not be used to compare to a variable.Instead you can use this. in place of Rational. Also the  operator can not be applind to operands of custom type. You need to check for individual elements of the class or need to OVERLOAD the   operator. For == operator also you need to provide this in place of Rational  so as to check for reference equals with otherRational. Hope this clears you doubt.!!!!! Let know if you have any other query.

Prince · Answer

Amit Thanks for reponse

Amit Choudhary · Answer

hi friend What are you really doing in this code: if ( Rational Rational is a Type {class name} and you comaparing it with its object ..... To have some good example for IComparable interface implemetation download the attach file and see how it works. Please mark as answer if it helps.