Java. Need help refactoring too large a class

I have a tic-tac-toe game and there is a class in it that describes the game from beginning to end. I think it is too big, but I do not like I can not decide what to take from there, for which I will not undertake and there is a reason why it should be here.

// описывает партию public class Game implements Play { // объект утилитного класса в который вынесена проверка наличия победителя private Validation validation = new ValidationWinnerUtil(); // игроки private Subject[] gamers = new Subject[2]; // ввод с консоли private Input input; // побелитель данной партии private Subject win; // доска для игры private Desk board; public Game(Input input) { this.input = input; } // устанавливает размер доски private void initBoard() { System.out.println("Хотите использовать стандартный размер доски 3х3 (y/n)?"); String answer = this.input.getString(); if (answer.equals("n")) { System.out.println("Введите размер доски :"); this.board = new Board(this.input.getNumber()); } else if (answer.equals("y")) { this.board = new Board(3); } else { initBoard(); } } // for test Subject[] getGamers() { return gamers; } // for test Desk getBoard() { return board; } // инициализирует массив с игроками. порядок меняется в зависимости от того кто // ходит первым. кто первый тот играет крестиками. @Override public void choiceSide() { System.out.println("Кто ходит первый: (Bot / I) :"); String answer = this.input.getString().toLowerCase(); if (answer.equals("i")) { this.gamers[0] = new User(Cell.X, "user"); this.gamers[1] = new User(Cell.O, "bot"); } else if (answer.equals("bot")){ this.gamers[0] = new User(Cell.X, "bot"); this.gamers[1] = new User(Cell.O, "user"); } else { choiceSide(); } } // зацикливает очередность ходов игроков @Override public void loopMove() { this.initBoard(); PrinterBoard.printDesc(board.getBoard()); while (validation.gameCanGoOn(board.getBoard())) { for (Subject subject : this.gamers) { try { if (validation.gameCanGoOn(board.getBoard()) ) { board.move(subject.getColor(), getNewPosition(subject)); PrinterBoard.printDesc(board.getBoard()); this.win = subject; } } catch (IllegalMove illegalMove) { illegalMove.printStackTrace(); } } } } // дает новую позицию для хода если бот то генерирует в классе AutomaticMove // если пользователь то с консоли принимает private Position getNewPosition(Subject subject) { if (subject.getName().equals("user")) { System.out.println("По вертикали:"); int y = this.input.getNumber(); System.out.println("По горизонтали:"); return new Position(this.input.getNumber(), y); } else { return new AutomaticMove().generateMove(this.board); } } // в момент когда игра продолжаться не может смотрит есть ли победитель если да то записывает его в поле win @Override public Subject initWinner() { if (!this.validation.emptyCellExist(board.getBoard()) && !this.validation.winnerDetermines(board.getBoard())) { System.out.println("Ничья"); return new User(Cell.EMPTY, "nobody"); } else { System.out.println(format("Победитель: %s", this.win.getColor())); return this.win; } } } Вот тесты к нему: @Test public void whenUserMoveFirstThenUserAddInArrGamersFirst() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"i"}); input.setAnswersNum(new int[]{3}); Game game = new Game(input); game.choiceSide(); assertThat(game.getGamers()[0].getName(), is("user")); assertThat(game.getGamers()[1].getName(), is("bot")); } @Test public void whenBotMoveFirstThenUserAddInArrFirst() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"bot"}); input.setAnswersNum(new int[] {3}); Game game = new Game(input); game.choiceSide(); assertThat(game.getGamers()[0].getName(), is("bot")); assertThat(game.getGamers()[1].getName(), is("user")); } @Test public void whenBotMoveFirstAndWinByHorizontalThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"bot", "y"}); input.setAnswersNum(new int[] {2, 0, 2, 1}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("bot")); assertThat(subject.getColor(), is(Cell.X)); } @Test public void whenManMoveFirstAndWinByHorizontalThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"I", "y"}); input.setAnswersNum(new int[] {0, 1, 1, 1, 2, 1}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("user")); assertThat(subject.getColor(), is(Cell.X)); } @Test public void whenManMoveFirstAndWinByVerticalThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"I", "y"}); input.setAnswersNum(new int[] {0, 0, 1, 0, 2, 0}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("user")); assertThat(subject.getColor(), is(Cell.X)); } @Test public void whenBotMoveSecondAndWinByVerticalThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"I", "y"}); input.setAnswersNum(new int[] {0, 1, 0, 2, 1, 1, 2, 2}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("bot")); assertThat(subject.getColor(), is(Cell.O)); } @Test public void whenManMoveFirstAndWinByDiagonalLeftUpToRightDownThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"I", "y"}); input.setAnswersNum(new int[] {0, 0, 1, 1, 2, 2}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("user")); assertThat(subject.getColor(), is(Cell.X)); } @Test public void whenManMoveSecondAndWinByDiagonalRightUpToLeftDownThen() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"bot", "y"}); input.setAnswersNum(new int[] {0, 2, 1, 1, 2, 0}); Game game = new Game(input); game.choiceSide(); game.loopMove(); Subject subject = game.initWinner(); assertThat(subject.getName(), is("user")); assertThat(subject.getColor(), is(Cell.O)); } @Test public void whenUseNonstandardSizeDescThenSizeItIsChoiceUser() { StubInput input = new StubInput(); input.setAnswersStr(new String[] {"bot", "n"}); input.setAnswersNum(new int[] {4, 0, 1, 1, 1, 2, 1, 3, 1}); Game game = new Game(input); game.choiceSide(); game.loopMove(); assertThat(game.getBoard().getBoard().length, is(4)); } 

At first glance, it seems to me that I need to make a definition of the size of the board, but if I initBoard() then several classes will depend on my Input (and not just the Game ), and problems with testing will begin. The same problem with getNewPosition(Subject subject) also needs input from the console. Well, such methods as initWinner() - determining the winner, loopMove() - looping the moves to a certain end of the game, or choiceSide() - choosing who goes first I do not consider taking away from this class, they clearly belong to the game. After all, the party in this is what: chose who for whom, spent the moves themselves, determined the winner.

In general, such a dilemma. Tell me how to be?

The problem is that I need only 1 class to depend on input from the console, but at the same time other methods that do not fit into the general theme of this class fall into my class.

possible example:

In the class of the game for example method:

  private Dialogs dialogs = new Dialogs(); private void initBoard() { String answer = this.dialogs.ask("Хотите использовать стандартный размер доски 3х3 (y/n)?"); if (answer.equals("n")) { System.out.println("Введите размер доски :"); this.board = new Board(this.input.getNumber()); } else if (answer.equals("y")) { this.board = new Board(3); } else { initBoard(); } } 

And the class that encapsulates the input:

 public class Dialogs { private Input input = new ConsoleInput(); public void setInput(Input input) { this.input = input; } public String ask(String question) { System.out.println(question); return this.input.getString(); } public int askPosition(String question) { System.out.println(question); return this.input.getNumber(); }