diff --git a/Taschenrechner.java b/Taschenrechner.java
index 1cd9d6c..0506fe5 100644
--- a/Taschenrechner.java
+++ b/Taschenrechner.java
@@ -66,14 +66,18 @@ public class Taschenrechner {
 		
 		int s = scan.nextInt();
 		
+		scan.close();
+		
 		switch (s) {
 		case 1: {
 			
 			addition(s, s);
+			break;
 		}
 		case 2: {
 			
 			division(s, s);
+			break;
 		}
 		default:
 			throw new IllegalArgumentException("Unexpected value: " + s);