如何以多种方法使我的扫描仪工作[重复]

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java.util.NoSuchElementException - Scanner reading user input （2个答案）

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我正在为学校制作Connect 4游戏。我有一个玩家类，定义每个玩家的各个方面，棋盘类，“逻辑”类和运行游戏的游戏类。我的Player类有两种几乎相同的方法来设置每个玩家，唯一的区别是游戏片段X或O。Player方法还读取注册ID和gamerTag。它可以在player1上完美运行，但是我得到了java.util.NoSuchElementException。当尝试运行任何使用in.next ...（）;]的方法时，我实际上收到了此错误

玩家类方法

public void setPlayer1() {
    Scanner in = new Scanner(System.in);
    System.out.println("\nPlayer 1 please enter your Arena registration ID.");
    this.setID(in.nextLong());
    System.out.print("");
    System.out.println("Player 1 please enter the name you would like to use.");
    this.setTag(in.next());
    System.out.print("");
    System.out.print(gamerTag + " your game piece is \"X\".");
    this.setPiece("X");
    in.close();
}

public void setPlayer2() {
    Scanner in = new Scanner(System.in);
    System.out.println("\nPlayer 2 please enter your Arena registration ID.");
    this.setID(in.nextLong());
    System.out.print("");
    System.out.println("Player 2 please enter the name you would like to use.");
    this.setTag(in.next());
    System.out.print("");
    System.out.print(gamerTag + " your game piece is \"O\".");
    this.setPiece("O");
    in.close();}

public static void main(String[] args) {
    Connect4TextConsole game = new Connect4TextConsole();
    System.out.print(board);
    player1.setPlayer1();
    player2.setPlayer2();
    winner = Connect4.checkForWin(board);
    while (!winner){
        turn = turn.playerTurn(player1, player2);// switch players
        int column = Connect4.askForColumn(turn);

    }
}

我正在为学校制作Connect 4游戏。我有一个玩家类，定义每个玩家的各个方面，棋盘类，“逻辑”类和运行游戏的游戏类。我的Player类几乎有两种方法...

Answer 1

您只需要将其作为参数提供给方法