danShumway · September 9, 2014 16:31 · Sep 9, 2014
diff --git a/Passing by reference in C# b/Passing by reference in C#
@@ -0,0 +1,43 @@
+using System.IO;
+using System;
+
+class Program
+{
+    static void Main()
+    {
+
+        int x = 5;
+        int y = 10;
+
+
+        //I promise, C# treats arrays like objects.
+        int[] xObject = new int[1]; xObject[0] = 5;
+        int[] yObject = new int[1]; yObject[0] = 10;
+
+
+
+        playingWithRefs(ref x, ref y);
+        Console.WriteLine(x); //10
+        alsoAReferenceButReferenceMeansADifferentThingHere(xObject, yObject);
+        Console.WriteLine(xObject[0]); //5
+        passingObjectsByReferenceUsingRef(ref xObject, ref yObject);
+        Console.WriteLine(xObject[0]); //10
+    }
+
+    //We specify to pass by reference wit the ref keyword.
+    static void playingWithRefs(ref int a, ref int b)
+    {
+        a = b;
+    }
+
+    //We're passing by reference in the sense that we're passing in objects.
+    static void alsoAReferenceButReferenceMeansADifferentThingHere(int[] a, int[] b)
+    {
+        a = b;
+    }
+
+    static void passingObjectsByReferenceUsingRef(ref int[] a, ref int[] b)
+    {
+        a = b;
+    }
+}