What is Ref &
Out?
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class Program
{
public static void Calc(int a, int b, ref int x, ref int y, ref int z)
{
x = a + b;
y = a - b;
z = a * b;
}
static void Main(string[]
args)
{
int
p, q, sum, sub, mul;
p = 5;
q = 10;
sum = 0; // in case of ref we have to initialize
sub = 0; // variables whose reference is passing to
function
mul = 0; // before passing reference to function
Calc(p, q, ref
sum, ref sub, ref
mul);
Console.WriteLine("Sum: {0}", sum);
Console.WriteLine("Sub: {0}", sub);
Console.WriteLine("Mul: {0}", mul);
Console.ReadKey();
}
}
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class Program
{
public static void Calc(int a, int b, out int x, out int y, out int z)
{
x = a + b; // we have to initialize in the
y = a - b; // function
z = a * b; //
}
static void Main(string[]
args)
{
int
p, q, sum, sub, mul;
p = 5;
q = 2;
//sum =
0; // in case of out we don't need to initialize
//sub =
0; // variables whose reference is passing to
function but
//mul =
0; // the calling function have to intialize that
reference
Calc(p, q, out
sum, out sub, out
mul);
Console.WriteLine("Sum: {0}", sum);
Console.WriteLine("Sub: {0}", sub);
Console.WriteLine("Mul: {0}", mul);
Console.ReadKey();
}
}
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