Added book examples

C8/if_example.c

@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Declare some variables
+    int  a = 7, b=6;
+
+	// A single line of code conditional on the value of a
+	if ( a == 7 )
+	   printf ("The value of a is 7 - so I will do this\n");    
+	   
+	// Multiple lines of code conditional on b not equalling 4
+	// so then need to be placed inside { and }
+	if ( b != 4 )
+	{
+	   printf ("The value of b is not 4\n");    
+	   printf ("So I will do multiple tasks\n");    
+	}
+	   
+    return 0;   // Exit from main
+}

C8/switch_example_1.c

@@ -0,0 +1,29 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Declare some variables
+    int a = 1;
+    switch ( a )
+    {
+    case 0 :
+        printf ("Sunday\n");
+        break ; // end of the lines of code to execute
+
+    case 1:
+        printf ("Monday\n");
+        break ; // end of the lines of code to execute
+
+    case 2:
+        printf ("Tuesday\n");
+        break ; // end of the lines of code to execute
+
+    // etc...
+
+    default: // If no case is met (OPTIONAL)
+        printf ("\nThe value supplied is out of range\n");
+
+    }
+    return 0;
+}

C8/switch_example_2.c

@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+	// Declare some variables
+	int a = 1;
+	switch ( a )
+	{
+	case 1 :
+	case 2 : 
+	case 3 : 
+		// Code to do if a is 1, 2 or 3
+	break ; // end of the lines of code to execute
+
+	case 4:
+	case 5:
+		// Code to do if a is 4 or 5
+		break ; // end of the lines of code to execute
+
+	default: // If no case is met (OPTIONAL)
+		// Code to do if no case is met
+	}
+	return 0;
+}

C8/switch_example_3.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void)
+{
+    // Declare some variables
+    int a = 1;
+    switch ( a )
+    {
+    case 1 :
+        printf ("This is case 1\n");
+    case 2 :
+        printf ("This is case 2\n");
+    case 3 :
+        printf ("This is case 3\n");
+        break ; // end of the lines of code to execute
+
+    default: // If no case is met
+        printf ("This default case\n");
+        // Code to do if no case is met
+    }
+    return 0;
+}