diff --git a/APED/app/src/main/java/com/example/aped/MainActivity.java b/APED/app/src/main/java/com/example/aped/MainActivity.java
index b3c0458..1f7375d 100644
--- a/APED/app/src/main/java/com/example/aped/MainActivity.java
+++ b/APED/app/src/main/java/com/example/aped/MainActivity.java
@@ -58,14 +58,18 @@ public class MainActivity extends AppCompatActivity {
     /** zur Verwendung von favorite anstatt der direkten Einbindung.*/
     public  IFAVORITES favorite = new TestFavorites();
     /** allgemeines.*/
-    String ip = "192.168.1.220";
+    private String ip = "192.168.1.220";
+    /**
+     *
+     * @param savedInstanceState
+     */
     @Override
     protected void onCreate(final Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         //checks that the permission to read and write the xml is granted
         ensurePermissions();
         setXML();
-        uebergabe = new Communicator(ip,8080,this);
+        uebergabe = new Communicator(ip, 8080, this);
         setContentView(R.layout.activity_main);
         Toolbar toolbar = findViewById(R.id.toolbar);
         setSupportActionBar(toolbar);
@@ -104,11 +108,11 @@ public class MainActivity extends AppCompatActivity {
     public boolean onOptionsItemSelected(final @NonNull MenuItem item) {
         switch (item.getItemId()) {
             case R.id.action_set_IP:
-                Toast.makeText(this, "set IP",
-                        Toast.LENGTH_SHORT).show();
-                MaterialAlertDialogBuilder alert = new MaterialAlertDialogBuilder(MainActivity.this);
+                MaterialAlertDialogBuilder alert = new
+                        MaterialAlertDialogBuilder(MainActivity.this);
                 alert.setTitle(R.string.action_set_IP);
-                alert.setMessage("Please enter the ip address of the device to be connected");
+                alert.setMessage("Please enter the ip address of the "
+                        + "device to be connected");
                 final EditText input = new EditText(MainActivity.this);
                 input.setText(ip);
                 LinearLayout.LayoutParams lp = new LinearLayout.LayoutParams(
@@ -118,18 +122,25 @@ public class MainActivity extends AppCompatActivity {
                 alert.setView(input);
                 alert.setPositiveButton("connect",
                         new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog,int which) {
+                            public void onClick(final DialogInterface dialog,
+                                                final int which) {
                                 // Write your code here to execute after dialog
                                 ip = input.getText().toString();
-                                Toast.makeText(getApplicationContext(),ip +" IP connect", Toast.LENGTH_SHORT).show();
-                                uebergabe = new Communicator(ip,8080,MainActivity.this);
+                                Toast.makeText(getApplicationContext(),
+                                        ip + " IP connect",
+                                        Toast.LENGTH_SHORT).show();
+                                uebergabe = new Communicator(ip, 8080,
+                                        MainActivity.this);
                             }
                         });
                 alert.setNegativeButton("exit",
                         new DialogInterface.OnClickListener() {
-                            public void onClick(DialogInterface dialog, int which) {
+                            public void onClick(final DialogInterface dialog,
+                                                final int which) {
                                 // Write your code here to execute after dialog
-                                Toast.makeText(getApplicationContext(),"exit clicked", Toast.LENGTH_SHORT).show();
+                                Toast.makeText(getApplicationContext(),
+                                        "exit clicked",
+                                        Toast.LENGTH_SHORT).show();
                                 dialog.cancel();
                             }
                         });
@@ -227,16 +238,18 @@ public class MainActivity extends AppCompatActivity {
         }
     }
 
-    private void setXML(){
+    private void setXML() {
         try {
-            String xmlPath = ExternalStorageHandler.getExternalPrivateStorageDir(MainActivity.this);
-            File xmlFile = new File(xmlPath,"config.xml");
+            String xmlPath = ExternalStorageHandler.
+                    getExternalPrivateStorageDir(MainActivity.this);
+            File xmlFile = new File(xmlPath, "config.xml");
 
             //create the default XML config by using the default.xml from the assets folder
-            if (xmlFile.exists()){
+            if (xmlFile.exists()) {
                 xmlFile.delete();
             }
-            InputStream inputStream = getAssets().open("XML/default.xml");
+            InputStream inputStream = getAssets().open(
+                    "XML/default.xml");
             byte[] buffer = new byte[inputStream.available()];
             inputStream.read(buffer);
             inputStream.close();
@@ -246,9 +259,11 @@ public class MainActivity extends AppCompatActivity {
 
             xml = new XMLHandler(xmlFile);
         } catch (FileNotFoundException e) {
-            Log.e("Main Activity","Exception while reading the external private storage dir: " + e.getMessage());
-        } catch (ParserConfigurationException | IOException | SAXException e){
-            Log.e("Main Activity","XMLHandler failed to initialise: " + e.getMessage());
+            Log.e("Main Activity", "Exception while reading the "
+                    + "external private storage dir: " + e.getMessage());
+        } catch (ParserConfigurationException | IOException | SAXException e) {
+            Log.e("Main Activity", "XMLHandler failed to initialise: "
+                    + e.getMessage());
         }
     }
 }