卡片技巧Java

Question

我已经在这个项目上工作了30多个小时，现在我几乎和我刚开始的时候一样迷失了。我终于能够打印出7行3张卡片，但我的程序仍然有一些问题。

1. 我需要把卡片排在“……”这个词上
2. 当我调用我的PrintDeck()函数时，它应该打印出甲板上的所有卡片，但它没有。
3. 在我的一生中，我无法弄清楚如何拿起卡片的列来达到这个目的，如果用户选择第1列，我应该第二次拿起它，然后在7行3列中再把它们分发出去。然后让他们再挑选2张牌，然后做同样的事情。

如果你能提供任何帮助，我们将不胜感激。我知道有些代码不是很漂亮，但作业必须是这样的，这样我才能获得学分:/非常感谢您的帮助。

说明:这是一个文档，如果链接有效-> 指示文档程序要求：

您的程序必须使用以下技术生成自己的随机卡片：

• 为每一张卡生成一个随机整数
• 为每一张卡片显示一个字符串值(“钻石之一”)
• 使用rand()函数生成整数卡值
• 使用srand(time(0))命令(在程序开始时只使用一次)，在程序测试并正常运行后生成一个真正的随机甲板。

每个值必须转换为上述示例中所做的格式。每当你的程序显示卡片时，他们必须像上面那样在单词"of“上排成一行。

您的程序必须按行处理卡片，并按列收集它们(3次才能使其正常工作)。

你的程序必须问玩家他/她想在比赛前打印出整个牌面。每张卡片必须按上面的格式打印出来。

您的程序必须询问玩家是否想再玩一次，并继续播放该玩家想玩的次数。

程序必须向玩家询问他/她的名字，并在游戏的整个过程中通过名字引用玩家的名字。

您的程序代码必须使用函数进行逻辑组织。您还必须使用提供的初学者文件。如果您不使用初学者文件，您将得到0 (0)！

启动文件提供: CardtrickStarterFile.java如果这个粘贴奇怪，这里是一个pastebin链接：http://pastebin.com/rsZY2vKq

import java.util.Scanner;
import java.lang.String;
import java.util.Random;

public class CardTrickStarterFile {
 private static Random rand = new Random();
 private static String PlayAgain;


public static void main(String[] args) { 

/* declare and initialize variables */
int column = 0, i = 0;

/* Declare a 52 element array of integers to be used as the deck of cards */
int[] deck = new int[52];

/* Declare a 7 by 3 array to receive the cards dealt to play the trick */
int[][] play = new int[7][3];

/* Declare a Scanner object for input */
Scanner input = new Scanner(System.in);

/* Generate a random seed for the random number generator. */



/* Openning message.  Ask the player for his/her name */
System.out.println("\nHello, I am a computer program that is so smart");
System.out.println("I can even perform a card trick.  Here's how.\n");
System.out.println("To begin the card trick type in your name: ");
 String name = input.nextLine();

 char firstL = name.charAt(0);
    firstL = Character.toUpperCase(firstL);

name = replaceCharAt(name, 0, firstL);         
  /* Capitalize the first letter of the person's name. */


System.out.println("\nThank you " + name);

do
{
/* Build the deck */
BuildDeck(deck);

/* Ask if the player wants to see the entire deck. If so, print it out. */
System.out.println("Ok " + name + ", first things first.  Do you want to see what ");
System.out.println("the deck of cards looks like (y/n)? ");
String SeeDeck = input.nextLine();

switch (SeeDeck)
{
    case "y":
        PrintDeck(deck);
    break;
    case "n":
        System.out.println("Ok then let us begin.");
        Deal(deck,play);
        break;
    default:
        break;
}




System.out.printf("\n%s, pick a card and remember it...\n", name);

/* Begin the card trick loop */
for(i = 0; i < 3; i++)
{
/* Begin the trick by calling the function to deal out the first 21 cards */




/* Include error checking for entering which column */
    do
{
    /* Ask the player to pick a card and identify the column where the card is     */
    System.out.print("\nWhich column is your card in (0, 1, or 2)?: ");
    column = input.nextInt();
} while(column < 0 || column > 2);

/* Pick up the cards, by column, with the selected column second */



}

/* Display the top ten cards, then reveal the secret card */




/* if the player wants to play again */
System.out.printf("%s, would you like to play again (y/n)? ", name);
String PlayAgain = input.nextLine(); 

} 
while(PlayAgain == "y");

/* Exiting message */
System.out.println("\nThank you for playing the card trick!\n");
return;
}

public static String replaceCharAt(String s, int pos, char c) {
return s.substring(0,pos) + c + s.substring(pos+1);
}

public static void BuildDeck( int deck[])
{
int[] used = new int[52];
int i = 0;
int card = 0;

/* Generate cards until the deck is full of integers */
while(i < deck.length)
{
    /* generate a random number between 0 and 51 */

    card = rand.nextInt(52);
    /* Check the used array at the position of the card.  
       If 0, add the card and set the used location to 1.  If 1, generate     another number */
    if(used[card] == 0)
    {
                used[card] = 1;
                deck[i] = card;
                i++;                

    }
}

}

public static void PrintDeck( int deck[] )
{

    for (int i=0; i < 52; i++){
        PrintCard(i);
    }

/* Print out each card in the deck */

}

public static void Deal( int deck[], int play[][] )
{
int card = 0;

/* deal cards by passing addresses of cardvalues from
   the deck array to the play array                   */
System.out.println("\n   Column 0           Column 1           Column 2");
System.out.println("=======================================================");        

    for(int row = 0; row < play.length; row++){
        for(int col = 0; col < play[row].length; col++){               
            play[row][col]=deck[card];
           card++;
           System.out.printf("%s", PrintCard(play[row][col]) + "       ");
        } 

        System.out.println();
    }

}

 public static String PrintCard( int card )
 {
   int rank = (card % 13);
   int suit = (card / 13);
   String[] suits = { "Clubs", "Hearts", "Diamonds", "Spades" }; 
   String[] ranks = { "King", "Ace", "2", "3", "4", "5", "6", 
     "7", "8", "9", "10", "Jack", "Queen"}; 

 return (ranks[rank] + " of " + suits[suit]); 

}

public static void PickUp( int deck[], int play[][], int column )
{
 int card = 0, row = 0;








return;
}

public static void SecretCard( int deck[] )
{
int card = 0;

System.out.println("\nFinding secret card...");
for(card = 0; card < 10; card++)
    PrintCard(deck[card]);

System.out.println("\nYour secret card is: ");
    PrintCard(deck[card]);
return;
}
}

Answer 1

好吧，有几件事不对，所以我试着一点一点地帮你。第一种是你的打印甲板方法，它实际上不会打印任何东西.你也把错误的东西传给了它。再看看这个方法，看看你能不能先把它打印出来，然后再看看它为什么打印错误的东西