Use two out parameters : Parameters Passing : Language Basics C# Source Code

    

/*
C#: The Complete Reference 
by Herbert Schildt 

Publisher: Osborne/McGraw-Hill (March 8, 2002)
ISBN: 0072134852
*/
// Use two out parameters. 
 
using System; 
 
class Num { 
  /* Determine if x and v have a common denominator. 
     If so, return least and greatest common denominators in  
     the out parameters. */ 
  public bool isComDenom(int x, int y, 
                         out int least, out int greatest) { 
    int i; 
    int max = x < y ? x : y; 
    bool first = true; 
 
    least = 1; 
    greatest = 1;  
 
    // find least and treatest common denominators 
    for(i=2; i <= max/2 + 1; i++) { 
      if( ((y%i)==0) & ((x%i)==0) ) { 
        if(first) { 
          least = i; 
          first = false; 
        } 
        greatest = i; 
      } 
    } 
 
    if(least != 1) return true; 
    else return false; 
  } 
} 
  
public class DemoOut { 
  public static void Main() {   
    Num ob = new Num(); 
    int lcd, gcd; 
 
    if(ob.isComDenom(231, 105, out lcd, out gcd)) { 
      Console.WriteLine("Lcd of 231 and 105 is " + lcd); 
      Console.WriteLine("Gcd of 231 and 105 is " + gcd); 
    } 
    else 
      Console.WriteLine("No common denominator for 35 and 49."); 
 
    if(ob.isComDenom(35, 51, out lcd, out gcd)) { 
      Console.WriteLine("Lcd of 35 and 51 " + lcd); 
      Console.WriteLine("Gcd of 35 and 51 is " + gcd); 
    } 
    else 
      Console.WriteLine("No common denominator for 35 and 51."); 
 
  } 
}