java - 我怎样才能在同一个方法中调用一个方法？

Question

我编写了一个 21 点程序，我希望每次玩家输掉时都执行方法 play()。如:

public void play()
   {
      System.out.println("Your balance: $" + playerBalance + "\nHow much would you like to bet?");
      playerBet = keyboard.nextInt();
      System.out.println("Your bet: $" + playerBet);



      if(playerTotalValue > 21)
      {
         playerBalance -= playerBet;
         System.out.println("You are busted.\nYour balance: $" + playerBalance);
         System.out.println("Press enter to continue...");
         keyboard.next();
         play();
      }   

      else if(dealerTotalValue > 21)
      {
         playerBalance += playerBet;
         System.out.println("The house is busted.\nYour balance: $" + playerBalance);             
         System.out.println("Press enter to continue...");
         keyboard.next();
         play();
      }

这当然不能像我想要的那样工作!任何帮助将不胜感激。

Answer 1

从自身调用一个方法被称为recursion .

你不想为此做递归，而是一个不断重复其主体直到玩家想要退出的循环或循环。

像这样:

public void play() {
    boolean playAgain = true;

    while (playAgain) {
        // Your game logic here.

        // When the game ends, ask the user if he/she wants to play again
        // and store the answer in the playAgain variable.
    }
}