move exercises, lecture examples, labs into subfolders

Exercises/C10/void_function_example.c

@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+// Define HOW the function is to be used, code comes later
+void DisplayDayOfTheWeek ( int Day );
+
+int main(void)		// Execution starts here
+{
+   	int d;	// Declare variable
+
+    // Obtain values
+    printf("\nPlease enter a number betwwen 0 and 6");
+    scanf("%d", &d);
+
+    // Use a function to display the day of the week
+    DisplayDayOfTheWeek(d);
+
+    return 0;
+}
+
+// Function to display day of week - nothing is returned
+void DisplayDayOfTheWeek ( int Day )
+{
+    // Display date based on value
+    // Case values on one line as easier to cut/paste :-)    
+    switch (Day)
+    {
+			case 0 : printf ("Sunday") ; break;
+			case 1 : printf ("Monday") ; break;
+			case 2 : printf ("Tuesday") ; break;
+         
+		    /* etc. for other days of the week */    
+    
+    	default:
+        	printf ("Invaid day provided");
+    }
+    return;	// No value needed as the return type is void
+}