Added book examples

C9/for_loop_examples.c

@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Ddeclare variable and initialise to 1
+    int i;
+
+    // Count up from 1 to 100 in steps of 1
+    // Note the test could also be: i <= 100
+    for ( i = 0 ; i < 101 ; i++ )
+    {
+        printf ("The value of i is %d\n",i);
+    }
+
+    // Count down form 10 to zero
+    // Note: we could also use the test: i != 0
+    for ( i = 10 ; i >= 0 ; i-- )
+    {
+        printf ("The value of i is %d\n",i);
+    }
+
+    // Count up from 1 to 100 in steps of 3
+    // Note the test could also be: i <= 100
+    // Increement could also be written as i+=3
+    for ( i = 0 ; i < 101 ; i=i+1 )
+    {
+        printf ("The value of i is %d\n",i);
+    }
+    return 0;
+}