Do you know how to code for a Black Jack

Replies

• 

  rohit330

  yeah..everything fine
• 

  shalini_goel14

  Hi rohit,
  
  Please look at following Java implementation for this if it is fine for you.
  
  

  /*
   * BlackJack.java
   *
   * Created on February 4, 2009, 11:32 AM
   *
   * To change this template, choose Tools | Template Manager
   * and open the template in the editor.
   */
  package myjava;
  import java.io.BufferedReader;
  import java.io.IOException;
  import java.io.InputStreamReader;
  /**
   *
   * @author shalinig
   */
  public class BlackJack {
      
      /** Creates a new instance of BlackJack */
      public BlackJack() {
      }
      
      public static void main(String args[]){
          
          BlackJack bObj= new BlackJack();
          
          BufferedReader br=new BufferedReader(new InputStreamReader(System.in));
          String firstCardVal="",secondCardVal="";
          Integer returnedVal=null;
          try {
              System.out.println("Enter your first card value.");
              firstCardVal = br.readLine();
              System.out.println("First Card Value is ::"+firstCardVal);
              
              System.out.println("Enter your second card value.");
              secondCardVal = br.readLine();
              System.out.println("Second Card Value is ::"+secondCardVal);
          } catch (IOException ex) {
              System.out.println("IO Exception occured");
          }
          
          if(firstCardVal !=null && secondCardVal !=null){
              returnedVal= bObj.retrunVal(firstCardVal.toUpperCase(),secondCardVal.toUpperCase());
          }
          
          if(returnedVal==0){
              System.out.println("He chooses to stand.");
          } else if(returnedVal==1){
              System.out.println("He asks for a hit.");
          } else
              System.out.println("Invalid card value");
      }
      
      public int retrunVal(String firstCardVal, String secondCardVal){
          Integer sum=0;
          System.out.println("[firstCardVal = "+firstCardVal+", secondCardVal = "+secondCardVal+"]");
          if(firstCardVal.equals("J")){
              firstCardVal="10";
          } else if(firstCardVal.equals("A")){
              firstCardVal="11";
          } else if(firstCardVal.equals("Q")){
              firstCardVal="12";
          } else if(firstCardVal.equals("K")){
              firstCardVal="13";
          } else if(secondCardVal.equals("J")){
              secondCardVal="10";
          } else if(secondCardVal.equals("A")){
              secondCardVal="11";
          } else if(secondCardVal.equals("Q")){
              secondCardVal="12";
          } else if(secondCardVal.equals("K")){
              secondCardVal="13";
          }
          try{
              sum = new Integer(Integer.parseInt(firstCardVal) + Integer.parseInt(secondCardVal));
              System.out.println("Sum is:"+sum);
          } catch (NumberFormatException ex) {
              System.out.println("Return val is -1");
              return -1;
          }
          if(sum<=11){
              System.out.println("Return val is 1");
              return 1;
          } else{
              System.out.println("Return val is 0");
              return 0;
          }
      } 
       
   }
  

  Note: It is well compiled and executed. Feel free to ask any questions/doubts in it. 😀
• 

  shalini_goel14

  Hi all C/C++ users,
  
  Below find the prototype for this :
  
  int testHit(char firstCard, char secondCard)
  Where the function testHit takes 2 character input firstCard, secondCard and returns an Integer output.
  
  Constraints:
  1. Color of the card does not affect the score of the card.
  2. If the value of card is not valid then return -1.
  3. Don't consider the card with value 10.
  4. Input for Face cards must be capital letters('A','J','Q','K') else return -1
  
  Input specifications: In input you will be given 2 single characters representing the two cards.
  
  Output specifications: The output will be 1 or 0. 1 means the player can hit and 0 means stand.
  
  [PS: This is applicable only for C/C++ programs. Please try once.]
• 

  rohit330

  oops.. i dont know java!
• 

  shalini_goel14

  rohit330

  oops.. i dont know java!

  You can ask me any question in that program rohit. Well, wait for sometime may be C/C++ users will post their program here.😀. I have given them logic idea also.
• 

  rohit330

  [B][U]Solution[/U][/B]
  
  [B]#include
  #include
  #include
  int testHit(char,char);
  int main()
  {
  clrscr();
  //TestCase 1
  	{
  		char firstcard,secondcard;
  		int result;
  		firstcard= 'J';secondcard= 'A';
  		result=testHit(firstcard,secondcard);
  		printf("%d  ",result);
  
  	}
  
  
  	//TestCase 2
  	{
  		char firstcard,secondcard;
  		int result;
  		firstcard= '4';secondcard= '3';
  		result=testHit(firstcard,secondcard);
  		printf("%d  ",result);
  
  
  	}
  	//TestCase 3
  	{
  		char firstcard,secondcard;
  		int result;
  		firstcard= 'A';secondcard= 'F';
  		result=testHit(firstcard,secondcard);
  		printf("%d  ",result);
  	}
  
  return(0);
  }
  int testHit(char firstcard,char secondcard)
  {
  int temp,w;
  char d,p;
  char l,i;
  if(((secondcard=='A')||(secondcard=='J')||(secondcard=='K')||(secondcard=='Q')||(secondcard=='2')||(secondcard=='3')||(secondcard=='4')||(secondcard=='5')||(secondcard=='6')||(secondcard=='7')||(secondcard=='8')||(secondcard=='9'))&&((firstcard=='A')||(firstcard=='J')||(firstcard=='K')||(firstcard=='2')||(firstcard=='3')||(firstcard=='4')||(firstcard=='5')||(firstcard=='6')||(firstcard=='7')||(firstcard=='8')||(firstcard=='9')||(firstcard=='Q')))
  {
  switch(firstcard)
  {
  case 'A':
  w=firstcard-17;
  firstcard=w+1;
  break;
  case 'J':
  w=firstcard-17;
  firstcard=w+1;
  break;
  case 'K':
  w=firstcard-18;
  firstcard=w+1;
  break;
  case 'Q':
  w=firstcard-24;
  firstcard=w+1;
  break;
  }
  switch(secondcard)
  {
  case 'A':
  w=secondcard-17;
  secondcard=w+1;
  break;
  case 'J':
  w=secondcard-17;
  secondcard=w+1;
  break;
  case 'K':
  w=secondcard-18;
  secondcard=w+1;
  break;
  case 'Q':
  w=secondcard-24;
  secondcard=w+1;
  break;
  }
  l=firstcard+secondcard;
  //printf("%d",l);
  p=toascii(l);
  //printf("%d",p-96);
  temp=p-97;
  if ((temp<=11)||(firstcard=='A')||(secondcard=='A'))
  return(1);
  else
  return(0);
  }
  else
  return(-1);
  }[/B]
  
  

• 

  rohit330

  Now the thread can be closed....