Complete set: Intro to C - Bill Buchanan

}
x *= x;
System.Console.WriteLine("Value in the method is {0}",x);
return(x);
static void Main(string[] args)
{
double val1,val2;
val1=10;
}
}
}
val2=findSquare(val1);
System.Console.WriteLine("Value now is {0}",val1);
System.Console.ReadLine();
Sample Run Error! Reference source not found.
Value in the method is 100
Value now is 10
4.2.2 Passing by reference
It is possible to pass a reference of a parameter, so that the parameter is changed by
the method. For this the ref keyword is inserted before the variable that is passed. It
can be see from the test run of Program 4.2 that the actual value of the parameter
can now be changed by the method.
Program 4.2: Program4_2_PassingByReference
using System;
namespace ConsoleApplication2
{
class Class1
{
duction to .NET
Intro
static double findSquare(ref double x)
{
x *= x;
System.Console.WriteLine("Value in the method is {0}",x);
return(x);
}
static void Main(string[] args)
{
double val1,val2;
}
val1=10;
val2=findSquare(ref val1);
System.Console.WriteLine("Value now is {0}",val1);
System.Console.ReadLine();
Agilent .NET Course: Type and Debugging 3