Added some documentation

kms_exercise/client_server/Server.java

@@ -135,19 +135,26 @@ public class Server{
         }
     }
     
+    /**
+    * @return String with filenames of current directory and subdirectories
+    */
     public String list(){
         String directory="";
         try (Stream<Path> walk = Files.walk(Paths.get("."))) {
             // regular file: https://unix.stackexchange.com/questions/99276/what-is-a-regular-file
             directory = walk.filter(Files::isRegularFile)
                 .map(x -> x.toString())
-                .reduce("", (x,y)->x+y);
+                .reduce("", (x,y)->x+"/n"+y);
         }catch(IOException e){
             System.err.println("Error during walk through directory!");
         }
         return directory;
     }
     
+    /**
+    * @param path path of the file requested
+    * @return byte array with file content
+    */
     public byte[] getFileContent(String path){
         byte[] fileContent = new byte[1];
         try{