diff --git a/src/de/dhbwstuttgart/parser/PackageCrawler.java b/src/de/dhbwstuttgart/parser/PackageCrawler.java
index bef0d6c7..007b4736 100644
--- a/src/de/dhbwstuttgart/parser/PackageCrawler.java
+++ b/src/de/dhbwstuttgart/parser/PackageCrawler.java
@@ -9,6 +9,7 @@ import org.reflections.util.FilterBuilder;
 
 import java.util.LinkedList;
 import java.util.List;
+import java.util.ArrayList;
 import java.util.Set;
 
 /**
@@ -32,4 +33,13 @@ public class PackageCrawler {
 
         return classes;
     }
+    
+  public static List<String> getClassNames(String packageName){
+    List<String> nameList = new ArrayList();
+    Set<Class<?>> classes = getClassesInPackage(packageName);
+    for(Class c : classes){
+      nameList.add(c.getName());
+    }
+    return nameList;
+  }
 }
diff --git a/src/de/dhbwstuttgart/parser/RunParser.java b/src/de/dhbwstuttgart/parser/RunParser.java
index 08228eb0..f9456a85 100644
--- a/src/de/dhbwstuttgart/parser/RunParser.java
+++ b/src/de/dhbwstuttgart/parser/RunParser.java
@@ -9,6 +9,8 @@ import de.dhbwstuttgart.syntaxtree.modifier.*;
 
 import java.util.ArrayList;
 import java.util.Scanner;
+import java.io.File;
+import java.io.FileNotFoundException;
 import java.io.ByteArrayInputStream;
 import java.io.InputStream;
 import java.io.IOException;
@@ -16,7 +18,8 @@ import java.nio.charset.StandardCharsets;
 public class RunParser{
   public static void main(String[] args){
     try{
-      Scanner sc = new Scanner(System.in);
+      File file = new File(args[0]);
+      Scanner sc = new Scanner(file);
       String inputString = sc.nextLine();
       while(sc.hasNextLine()) inputString = inputString + sc.nextLine() + "\n";
       InputStream stream = new ByteArrayInputStream(inputString.getBytes(StandardCharsets.UTF_8));
@@ -45,6 +48,9 @@ public class RunParser{
     catch(java.util.NoSuchElementException e){
       System.out.println("Error: Source seems to be empty.");
     }
+    catch(FileNotFoundException e){
+      System.out.println("File not found.");
+    }
     catch(IOException e){
       System.out.println("An exception occured which is on our TODO list.");
       e.printStackTrace();