This code shows how to use reference paameters in c#
class Test {
static void Swap(ref int x, ref int y) {
int t = x;
x = y;
y = t;
}
static void Main() {
int a = 1;
int b = 2;
Console.WriteLine("pre: a = {0}, b = {1}", a, b);
Swap(ref a, ref b);
Console.WriteLine("post: a = {0}, b = {1}", a, b);
}
}
The output of the program is:
pre: a = 1, b = 2
post: a = 2, b = 1
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