corregir leer caracteres

src/Bucles13.java

@@ -4,7 +4,7 @@
 import java.util.Scanner;
 
 void main() {
-	long result = 0;
+	long a = 0, e = 0, i = 0, o = 0, u = 0;
 
 	Scanner sc = new Scanner(System.in);
 
@@ -15,13 +15,26 @@ void main() {
 	do {
 		char c = sc.next().charAt(0);
 		switch (c) {
-			case 'a', 'e', 'i', 'o', 'u':
+            case 'a':
-				result++;
+                a++;
+                break;
+            case 'e':
+                e++;
+                break;
+            case 'i':
+                i++;
+                break;
+            case 'o':
+                o++;
+                break;
+            case 'u':
+                u++;
+                break;
 			default:
 		}
 	} while (--n > 0);
 
 	sc.close();
 
-	System.out.printf("Hay %d vocales\n", result);
+	System.out.printf("a: %d\ne: %d\ni: %d\no: %d\nu: %d\n", a, e, i, o, u);
 }

src/Excepciones1.java

@@ -0,0 +1,18 @@
+void main() {
+    Scanner sc = new Scanner(System.in);
+    sc.useLocale(Locale.US);
+    double num1 = 0.0;
+    boolean interruptor = true;
+    while(interruptor) {
+        try {
+            System.out.println("Introduce un real (con .)");
+            num1 = sc.nextDouble();
+            System.out.printf("Has introducido: %f\n", num1);
+            interruptor = false;
+        } catch (InputMismatchException e) {
+            System.out.println("No has introducido un real");
+        } finally {
+            sc.nextLine();
+        }
+    }
+}