Question

War—A Card game

Playing cards are used in many computer games, including versions of such classics as solitaire, hearts, and poker.

War:    Deal two Cards—one for the computer and one for the player—and determine the higher card, then display a message indicating whether the cards are equal, the computer won, or the player won. (Playing cards are considered equal when they have the same value, no matter what their suit is.) For this game, assume the Ace (value 1) is low. Play 26 rounds dealing a full deck with no repeated cards. If the number of times the player wins is bigger than the computer’s, then the player wins. (This is the simple version of the game. Feel free to add any new rules to make your card game more interesting. Please add necessary comments in your code to explain the rules.)

Design the Card game and implement it as follows.

1. Design a Card class that contains a String data field to hold the name of a suit (Spades, Hearts, Diamonds, or Clubs) and an int data field for a value a value of the card. Write the constructors if needed. Include get and set methods for each field. Include any methods that is needed. Save the class as Card.java. (You need to include at least one method in your class show the card value as Ace, King, Queen, Jack, or a number value).

2. Write an application that simulate the card game War using Card objects. Save the application as War.java.

• Some hints:

• Start by creating an array of all 52 playing Card objects with values (from 0 to 52).
• shuffle the cards
• Randomly select a card for the computer and players
• Remove the card from the deck.
• Display the values and suits of the player and computer's cards
• Compare the val­ues, and determine the winner.
• When all the cards in the deck are exhausted, display a count of the num­ber of times the player wins, the number of times the computer wins, and the number of ties.

Answer 1

Card.java
public class Card
{

    private int cardnum;
    private char suit;
  
    //Constructors
    public Card(char suit, int cardnum){
        this.cardnum = cardnum;
        this.suit = suit;
    }//end of construcor
  
    //Get method for card
    public int getCardNumber(){
        return cardnum;
    }//end getCard method
  
    //Set method for card
    public void setCardNumber(int cardnum){
        this.cardnum = cardnum;
    }//end of SetCard method
  
    @Override
    public String toString(){
  
        StringBuilder displayCard = new StringBuilder();
      
    
        switch(cardnum){
          
            case 11:
                displayCard.append("Jack");
                break;
            case 12:
                displayCard.append("Queen");
                break;
            case 13:
                displayCard.append("King");
                break;
            case 14:
                displayCard.append("Ace");
                break;  
            default:
                displayCard.append(cardnum);
                break;
        }//end rank switch
      
        displayCard.append(" of "); //setting the format of the output
      
        switch(suit){
            case 0:
                displayCard.append("Spades");
                break;
            case 1:
                displayCard.append("Hearts");
                break;
            case 2:
                displayCard.append("Clubs");
                break;
            case 3:
                displayCard.append("Diamonds");
                break;
            default:
                break;
        }
      
     
        return displayCard.toString();
    }//end of toString
  
}

War.java

import java.util.ArrayList;
import java.util.Collections;
import java.util.LinkedList;
import java.util.List;
import java.util.Random;

public class War {

    /**
     * @param args the command line arguments
     */
     public static void main(String[] args) {
        //ArrayList for Deck of Cards
        List<Card> Deck = new ArrayList<Card>();
        //Four suits
        for(int x=0; x<3; x++){
          
            //13 ranks
            for(int y=2; y<15; y++){   
                Deck.add(new Card((char) x,y));
            } //end of rank for loop
        }//end of suit for loop
      
      
        //Card Shuffle
        Collections.shuffle(Deck, new Random());
      
        //Player deck
        LinkedList<Card> deck1 = new LinkedList<Card>();
        //Computer deck
        LinkedList<Card> deck2 = new LinkedList<Card>();
      
        //player Cards
        deck1.addAll(Deck.subList(0, 25));
        //computer cards     
        deck2.addAll(Deck.subList(26, Deck.size()));
      
        while(true){
            Card pCard = deck1.pop();
            Card comCard = deck2.pop();
          
            //show the card
            System.out.println("Player " + pCard.toString());
            System.out.println("Computer " + comCard.toString());
          
        
            if(pCard.getCardNumber() > comCard.getCardNumber()){
                deck1.addLast(pCard);
                deck1.addLast(comCard);
                System.out.println("Player wins");
            }//end of if

             else if(pCard.getCardNumber() < comCard.getCardNumber()){
                deck2.addLast(pCard);
                deck2.addLast(comCard);
                System.out.println("Computer wins");
            }//end else if
            else
                 System.out.println("Its a Tie!");
          
          
          
          
            if(deck1.size()>deck2.size() ){
                System.out.println("Game Over");
                break;
            }
            else if(deck2.size()>deck1.size()){
                System.out.println("Game Over");
                break;
          
        }//end while

    } // end of main
}// end of class
}