Question

In java based on the classes provided finish the program per the requirements:

----------------------------------------------Class1

package cardgame;
{
private String suit;// spades,diamonds,clubs,hearts
private int value; // 1 to 13
public static final String[] SUITS ={"clubs","hearts","diamonds","spades"};
/**
* @return the suit
*/
public String getSuit() {
return suit;
}

/**
* @param suit the suit to set
*/
public void setSuit(String suit) {
this.suit = suit;
}

/**
* @return the value
*/
public int getValue() {
return value;
}

/**
* @param value the value to set
*/
public void setValue(int value) {
this.value = value;
}
//you have to write two methods for random generation of suit and value
public int ranSuit()
{
int value= (int)(Math.random()*4)+0;
return value;
}
public int ranValue()
{
int value= (int)(Math.random()*13)+1;   
return value;
}
}

--------------------------------------------Class2

public class CardTrick {
public static void main(String[] args)
{
CardGame[] magicHand = new CardGame[7];//array of objects
for(int i=0;i<magicHand.length;i++)
{
CardGame c1 = new CardGame();//object
c1.setValue(c1.ranValue());//random number 1 to 13
c1.setSuit(CardGame.SUITS[c1.ranSuit()]);
magicHand[i] =c1;
}
for(int i=0;i<magicHand.length;i++)
{
System.out.println(magicHand[i].getSuit() +" "+ magicHand[i].getValue());
  
}
// take input suit and value from user. compare with array.if same card is
//in the array print your card is found.
  
}
}

Answer 1

CardGame class has two attributes - type of suit and the card number. The setters and getters function are provided by the class. The task is to take an input from user with the suit type and card number and compare each object of magicHand array with the user's input in a loop and output if the user's card is found or not.

The added code is in bold.

Code:

package cardgame;

import java.lang.*;
import java.util.*;

// ----------------------------------------------Class1

class CardGame
{
   private String suit;// spades,diamonds,clubs,hearts
   private int value; // 1 to 13
   public static final String[] SUITS ={"clubs","hearts","diamonds","spades"};
   /**
   * @return the suit
   */
   public String getSuit() {
       return suit;
   }
  
   /**
   * @param suit the suit to set
   */
   public void setSuit(String suit) {
       this.suit = suit;
   }
  
   /**
   * @return the value
   */
   public int getValue() {
       return value;
   }
  
   /**
   * @param value the value to set
   */
   public void setValue(int value) {
       this.value = value;
   }
   //you have to write two methods for random generation of suit and value
   public int ranSuit()
   {
       int value= (int)(Math.random()*4)+0;
       return value;
   }
   public int ranValue()
   {
       int value= (int)(Math.random()*13)+1;   
       return value;
   }
}

// --------------------------------------------Class2

public class CardTrick {
   public static void main(String[] args)
   {
       CardGame[] magicHand = new CardGame[7];//array of objects
       for(int i=0;i<magicHand.length;i++)
       {
           CardGame c1 = new CardGame();//object
           c1.setValue(c1.ranValue());//random number 1 to 13
           c1.setSuit(CardGame.SUITS[c1.ranSuit()]);
           magicHand[i] =c1;
       }
       for(int i=0;i<magicHand.length;i++)
       {
           System.out.println(magicHand[i].getSuit() +" "+ magicHand[i].getValue());
       }
      
       // take input suit and value from user. compare with array.if same card is
       //in the array print your card is found.
      
       Scanner sc = new Scanner(System.in);   // input stream
      
       // user inputs
       int suitNumber, user_card_number;  
       String user_suit;
      
       // taking user input
       System.out.println("Enter suit type: 0 for clubs, 1 for hearts, 2 for diamonds, 3 for spades");
       suitNumber = sc.nextInt();
       System.out.println("Enter card number from 1 to 13");
       user_card_number = sc.nextInt();
      
       // invalid card choice
       if((suitNumber<0 || suitNumber>3) || (user_card_number<1 || user_card_number>13)) {
          
           System.out.println("Invalid inputs");
       } else {
          
           // get the suit type in string
           user_suit = CardGame.SUITS[suitNumber];
          
           int i;
           // loop for all the cards in magicHand
           for(i=0;i<magicHand.length;i++)
           {
               // match found, if both attributes are equal
               if(user_suit.equals(magicHand[i].getSuit()) && user_card_number == magicHand[i].getValue())
               {
                   System.out.println("Your card is found");
                   break;
               }
           }
          
           // reached at the end of loop but no match found
           if(i==magicHand.length) {
               System.out.println("Your card is not found");
           }
       }
  
   }
}

Sample output:

Code snippet screenshot: