Question

//当我尝试编译它时会不断弹出这个错误，说它在解析时到达了文件的末尾，这让我相信我的'{}'括号有问题。请帮助!!!

//这是代码：

import java.util.*;

class GameOfNim

{ public static void main(String [] args)

    { Scanner in = new Scanner (System.in);

    int marbles, player, difficulty, pick;

    marbles = (int)(Math.random()*90+10);

    player = (int)(Math.random()+0.5);

    difficulty = (int)(Math.random()+0.5);


  if(difficulty == 0)

  System.out.println("The Computer is now in Beast Mode!");

  else if(difficulty == 1)
  System.out.println("The Computer is now in easy mode.");

  System.out.println("The pile of marbles has: " + marbles + "total marbles. Game On!");

  while(marbles>0)
  { if(player==0)//person
  {System.out.print("Pick some marbles");
  pick = in.nextInt();}
  if (pick >= 1 && pick <= marbles/2){
  marbles = marbles - pick;
  System.out.println(marbles+"left");}

else if(pick < 1 || pick > marbles/2 && pile > 1){
    System.out.println("Error: Illegal Move.");
    player = 0;
    continue;}

else {
     marbles = marbles - pick;
     System.out.println(marbles + "left.");
     }}


   if(player == 1 && difficulty ==1)
   {
System.out.println("Computer's turn to pick");
pick = (int)(Math.random()*marbles/2+1);
marbles = marbles - pick;
System.out.println("computer picks: " + pick + "marbles." + "There are: " + marbles + " marbles left.");}

  else if(player == 1 && difficulty == 0)
  {
System.out.println("Computer's turn to pick");
if(marbles > 63)
    {pick = marbles - 63;
    marbles = marbles - pick;}
else if(pile > 31)
    {pick = marbles - 32;
    marbles = marbles - pick;}
else if(pile > 15)
    {pick = marbles - 15;
    marbles = marbles - pick;}
else if(pile > 7)
    {pick = marbles - 7;
    marbles = marbles - pick;}
else if(pile > 3)
    {pick = marbles - 3;
    marbles = marbles - pick;}

else{
pick =  (int)(Math.random()*marbles/2+1);
marbles = marbles - pick;
System.out.println("Computer picks: " + pick + "marbles." + "There are: " + marbles + " marbles left.");
 }
   {if(player==0)
     player=1;
   else player=0;
 }
   {if(player==0)
      System.out.println("Computer: 'I give up! You win!");
   else
      System.out.println("Computer: '...You are pathetic...'");
  }}

//注意：通过调整块中的代码。似乎问题可能出在我的While循环中。但我真的不知道。

Answer 1

首先，您应该正确缩进代码。您应该阅读一些关于Java的缩进约定。以下是正确缩进代码的示例：

class GameOfNim {

    public static void main(String[] args) {
        [...]
        if (difficulty == 0) {
            System.out.println("The Computer is now in Beast Mode!");
        } else if (difficulty == 1) {
            System.out.println("The Computer is now in easy mode.");
        }
    }
}

在修复代码缩进后，我很容易发现您在文件末尾缺少两个右括号，一个用于主方法，一个用于您的类。

Answer 2

好友。您应该首先使用编码约定。一个条款应该是：

void function(){
}

OR

void function()
{
}

同样适用于if，while循环和类。选择一个编码标准并坚持下去:) 至于你的问题，你省略了结束括号'}'关闭课程。

Answer 3

在某个地方，你错过了两个'}'字符，在将代码复制/粘贴到IDE后，我注意到有人抱怨没有排队的东西。你错过了两个端括号。

此外，经过进一步检查，看起来“桩”永远不会被声明或初始化为任何值。

Answer 4

你应该尝试缩进。你可以尝试改变

  {if(player==0)
     player=1;
   else player=0;
 }
   {if(player==0)
      System.out.println("Computer: 'I give up! You win!");
   else
      System.out.println("Computer: '...You are pathetic...'");
  }}  `enter code here`

with：

  if(player==0)
      player=1;
  else player=0;

  if(player==0)
      System.out.println("Computer: 'I give up! You win!");
  else
      System.out.println("Computer: '...You are pathetic...'");
    }
}

我的代码出了什么问题？

4 个答案: