diff --git a/src/sample/ArtRico.java b/src/sample/ArtRico.java
index 2ed17b0..120958d 100644
--- a/src/sample/ArtRico.java
+++ b/src/sample/ArtRico.java
@@ -35,7 +35,8 @@
     for (int i = 0; i < MENU_SIZE; i++) {
       mainMenuButtons[i] = new Button();
       mainMenuButtons[i].setLayoutX(SCENE_WIDTH / 2 - BUTTON_WIDTH / 2);
-      mainMenuButtons[i].setLayoutY(i * (BUTTON_HEIGHT + BUTTON_BORDER) + BUTTON_BORDER);
+      mainMenuButtons[i].setLayoutY(i * (BUTTON_HEIGHT + BUTTON_BORDER)
+          + BUTTON_BORDER);
       mainMenuButtons[i].setPrefSize(BUTTON_WIDTH, BUTTON_HEIGHT);
       menuRoot.getChildren().add(mainMenuButtons[i]);
     }
@@ -52,7 +53,8 @@
       for (int i = 0; i < NEW_GAME_MENU_SIZE; i++) {
         newGameMenuButtons[i] = new Button();
         newGameMenuButtons[i].setLayoutX(SCENE_WIDTH / 2 - BUTTON_WIDTH / 2);
-        newGameMenuButtons[i].setLayoutY(i * (BUTTON_HEIGHT + BUTTON_BORDER) + BUTTON_BORDER);
+        newGameMenuButtons[i].setLayoutY(i * (BUTTON_HEIGHT + BUTTON_BORDER)
+            + BUTTON_BORDER);
         newGameMenuButtons[i].setPrefSize(BUTTON_WIDTH, BUTTON_HEIGHT);
         menuRoot.getChildren().add(newGameMenuButtons[i]);
       }
@@ -88,7 +90,8 @@
     });
 
     scene = new Scene(menuRoot);
-    scene.getStylesheets().add(ArtRico.class.getResource("style.css").toExternalForm());
+    scene.getStylesheets().add(ArtRico.class.getResource("style.css")
+        .toExternalForm());
     primaryStage.setScene(scene);
     primaryStage.show();
   }
diff --git a/src/sample/Constants.java b/src/sample/Constants.java
index 7960fba..f2d1c05 100644
--- a/src/sample/Constants.java
+++ b/src/sample/Constants.java
@@ -38,6 +38,7 @@
   int BUTTON_BORDER = 20;
   int MENU_SIZE = 5;
   int NEW_GAME_MENU_SIZE = 4;
-  String[] TOP_LABEL_CONTENT = {"REPLAY", "MODE", "PLAYED", "MOVED LEFT", "MOVED RIGHT"};
+  String[] TOP_LABEL_CONTENT = {"REPLAY", "MODE", "PLAYED", "MOVED LEFT"
+      , "MOVED RIGHT"};
   String RESOURSE_FOLDER = "Resource\\";
 }
diff --git a/src/sample/FileWorker.java b/src/sample/FileWorker.java
deleted file mode 100644
index 7394719..0000000
--- a/src/sample/FileWorker.java
+++ /dev/null
@@ -1,34 +0,0 @@
-package sample;
-
-import java.io.*;
-
-public class FileWorker {
-
-  public static void saveReplay(String fileName, String string) {
-    File file = new File(fileName);
-    try(FileWriter writer = new FileWriter(file, false)) {
-      writer.write(string);
-      writer.flush();
-    }
-    catch(IOException ex) {
-      System.out.println(ex.getMessage());
-    }
-  }
-
-  public static String loadReplay(String fileName) {
-    File file = new File(fileName);
-    String replay = "";
-    try(FileReader reader = new FileReader(file))
-    {
-      char[] buffer = new char[(int)file.length()];
-      reader.read(buffer);
-      replay = new String(buffer);
-    }
-    catch(IOException ex){
-      System.out.println(ex.getMessage());
-    }
-    finally {
-      return replay;
-    }
-  }
-}
diff --git a/src/sample/Game.java b/src/sample/Game.java
index 20675dc..b0bf266 100644
--- a/src/sample/Game.java
+++ b/src/sample/Game.java
@@ -41,7 +41,8 @@
     } catch (InterruptedException e) {
     }
     scene = client.scene;
-    scene.getStylesheets().add(Game.class.getResource("style.css").toExternalForm());
+    scene.getStylesheets().add(Game.class.getResource("style.css")
+        .toExternalForm());
     gameStage.setScene(scene);
     gameStage.show();
   }
@@ -66,7 +67,8 @@
     menuRoot.getChildren().add(gridPane);
     addLabels(gridPane);
     scene = new Scene(menuRoot);
-    scene.getStylesheets().add(Game.class.getResource("style.css").toExternalForm());
+    scene.getStylesheets().add(Game.class.getResource("style.css")
+        .toExternalForm());
 
     gridPane.setOnMouseClicked(e -> {
       int fileNumber = ((int) e.getY()) / GRID_LABEL_HEIGHT - 1;
@@ -75,7 +77,8 @@
         replayFile = RESOURSE_FOLDER + fileNames[fileNumber];
         startGame();
       } else if (fileNumber == -1) {
-        ReplayInfo.sortBy = (int) e.getX() * 5 / (SCENE_WIDTH - GRID_INDENTS * 2);
+        ReplayInfo.sortBy = (int) e.getX() * 5 / (SCENE_WIDTH -
+            GRID_INDENTS * 2);
         replays.sort(ReplayInfo::compareTo);
         addLabels(gridPane);
       }
@@ -126,13 +129,15 @@
       gridPane.add(gameTimeLabel, 2, i + 1);
 
       Label leftMovingTimeLabel = new Label();
-      leftMovingTimeLabel.setText(Integer.toString(replays.get(i).getLeftMovingTime()));
+      leftMovingTimeLabel.setText(Integer.toString(replays.get(i)
+          .getLeftMovingTime()));
       leftMovingTimeLabel.setPrefWidth((SCENE_WIDTH - GRID_INDENTS * 2) / 5);
       leftMovingTimeLabel.setPrefHeight(GRID_LABEL_HEIGHT);
       gridPane.add(leftMovingTimeLabel, 3, i + 1);
 
       Label rightMovingTimeLabel = new Label();
-      rightMovingTimeLabel.setText(Integer.toString(replays.get(i).getRightMovingTime()));
+      rightMovingTimeLabel.setText(Integer.toString(replays.get(i)
+          .getRightMovingTime()));
       rightMovingTimeLabel.setPrefWidth((SCENE_WIDTH - GRID_INDENTS * 2) / 5);
       rightMovingTimeLabel.setPrefHeight(GRID_LABEL_HEIGHT);
       gridPane.add(rightMovingTimeLabel, 4, i + 1);
diff --git a/src/sample/ReplayInfo.java b/src/sample/ReplayInfo.java
index db587d2..5f5af32 100644
--- a/src/sample/ReplayInfo.java
+++ b/src/sample/ReplayInfo.java
@@ -44,7 +44,8 @@
     int result = 0;
     switch (sortBy) {
       case 0:
-        result = Integer.compare(new Integer(replayName), new Integer(o.replayName));
+        result = Integer.compare(new Integer(replayName),
+            new Integer(o.replayName));
         break;
       case 1:
         result = replayMode.compareTo(o.replayMode);
diff --git a/src/sample/Server.java b/src/sample/Server.java
index 895176c..be82018 100644
--- a/src/sample/Server.java
+++ b/src/sample/Server.java
@@ -84,7 +84,8 @@
             PLAYER_POS_Y, PLAYER_WIDTH_EASY, PLAYER_HEIGHT,
             STROKE_WIDTH, Color.ORANGERED, Color.BEIGE,
             WALL_WIDTH, SCENE_WIDTH - WALL_WIDTH, PLAYER_SPEED_EASY);
-        ball = new Ball(SCENE_WIDTH / 2 - BALL_SIZE / 2, PLAYER_POS_Y - BALL_SIZE,
+        ball = new Ball(SCENE_WIDTH / 2 - BALL_SIZE / 2, PLAYER_POS_Y
+            - BALL_SIZE,
             BALL_SIZE, BALL_SIZE, STROKE_WIDTH, Color.ORANGERED,
             Color.BEIGE, WALL_WIDTH, SCENE_WIDTH - WALL_WIDTH,
             TOP_HEIGHT, SCENE_HEIGHT, BALL_SPEED_EASY);
@@ -95,7 +96,8 @@
             PLAYER_POS_Y, PLAYER_WIDTH_MEDIUM,
             PLAYER_HEIGHT, STROKE_WIDTH, Color.ORANGERED, Color.BEIGE,
             WALL_WIDTH, SCENE_WIDTH - WALL_WIDTH, PLAYER_SPEED_MEDIUM);
-        ball = new Ball(SCENE_WIDTH / 2 - BALL_SIZE / 2, PLAYER_POS_Y - BALL_SIZE,
+        ball = new Ball(SCENE_WIDTH / 2 - BALL_SIZE / 2, PLAYER_POS_Y
+            - BALL_SIZE,
             BALL_SIZE, BALL_SIZE, STROKE_WIDTH, Color.ORANGERED,
             Color.BEIGE, WALL_WIDTH, SCENE_WIDTH - WALL_WIDTH,
             TOP_HEIGHT, SCENE_HEIGHT, BALL_SPEED_MEDIUM);
@@ -176,7 +178,8 @@
     }
     client.resetBricks();
     createBricks(BRICKS_IN_RAW, BRICKS_IN_COLOMN, BRICKS_WIDTH, BRICKS_HEIGHT);
-    player.setTranslateX(SCENE_WIDTH / 2 - player.getWidth() / 2 + STROKE_WIDTH / 2);
+    player.setTranslateX(SCENE_WIDTH / 2 - player.getWidth() / 2
+        + STROKE_WIDTH / 2);
     player.setTranslateY(PLAYER_POS_Y);
     ball.setTranslateX(SCENE_WIDTH / 2 - BALL_SIZE / 2);
     ball.setTranslateY(PLAYER_POS_Y - BALL_SIZE);