java - 如何调用同一个类中的方法？

Question

这个问题已经有答案了:

Calling a method inside another method in same class (5 个回答)

已关闭 5 年前。

我正在为一个类制作一个骰子游戏，但我不知道如何调用掷骰子方法。

public class PigGame{

  public GVdie die1;
  public GVdie die2;
  public int PlayerScore;
  public int ComputerScore;
  public int RoundScore;
  public int winningScore;
  public int Roll1;

  public PigGame(){
    die1 = new GVdie();
    die2 = new GVdie();
    PlayerScore = (0);
    ComputerScore = (0);
    RoundScore = (0);
    winningScore = (100);
    System.out.println("Welcome to the game of Pig");    
  }

  public int getRoundScore (){
    return RoundScore;   
  }

  public int getPlayerScore (){
    return PlayerScore;
  }

  public int getComputerScore(){
    return ComputerScore;
  }

  public boolean playerWon(){
    if (PlayerScore >= 100)
    return true;
    else
    return false;
  }

  public boolean computerWon(){
    if (ComputerScore >= 100)
    return true;
    else
    return false;
  }

  private void rollDice (){
    die1.roll();
    die2.roll();    
    int roll1 = die1.getValue();
    int roll2 = die2.getValue();
    if ((roll1 == 1) || (roll2 == 1))
    RoundScore = 0;
    else
    RoundScore = roll1 + roll2;      

    System.out.println(die1 + "+" + die2 + "=" + (RoundScore));

  }

  public void playerRolls(){
    Roll1.rollDice();

    System.out.print(PlayerScore);
    if(PlayerScore >= 100)
    System.out.println("You have won the game of Pig!");

  }

在我的 public voidplayerRolls() 内部，我需要调用 rollDice 方法，但我一直很难弄清楚如何做到这一点。我所做的一切都出现了新的错误。该行中的第一行代码显然是错误的，只是我放入其中的最后一个内容。

Answer 1

您可以直接在playerRolls()中调用rollDice()。只是rollDice();。您现在正在做的是尝试从 int 调用该方法，这很奇怪。 私有(private)方法可以在且只能在其自己的类实例内部调用。

public void playerRolls(){
   rollDice(); //HERE

   System.out.print(PlayerScore);
   if(PlayerScore >= 100)
       System.out.println("You have won the game of Pig!");
}