added switch example

ChrisMayfield · ChrisMayfield · commit fad746bbd0b3 · 2017-08-04T15:01:23.000-04:00
diff --git a/ch09/Vowels.java b/ch09/Vowels.java
@@ -0,0 +1,42 @@
+public class Vowels {
+
+    public static void main(String[] args) {
+        String s = "Ahoy!";
+        for (int i = 0; i < s.length(); i++) {
+            
+            // display the next character
+            char c = s.charAt(i);
+            System.out.print(c + " is a ");
+
+            // if capital, convert to lowercase
+            if (c >= 'A' && c <= 'Z') {
+                c += 'a' - 'A';
+            }
+
+            // check if not a lowercase letter
+            if (c < 'a' || c > 'z') {
+                System.out.println("symbol");
+                continue;
+            }
+
+            // output the result of the letter
+            switch (c) {
+                case 'a':
+                case 'e':
+                case 'i':
+                case 'o':
+                case 'u':
+                    System.out.println("vowel");
+                    break;
+
+                case 'y':
+                    System.out.println("not sure");
+                    break;
+
+                default:
+                    System.out.println("consonant");
+                    break;
+            }
+        }
+    }
+}
