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I have a few basic method problems with my program

Posted on 2004-08-18
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Last Modified: 2010-03-31
//the progamming solutions have to be made with very basic programming skills
//so that I can fully understand program and I have very basic skills (and also I might not be
//that smart, sorry).
//these are the problems:

 //1. when i say Hit it should add one card to user card.
 //2. when the user wins it should add the money
 //3. when i say stand it should give me the total and end the game.
//these are the problems with my program it does not do those three things.


  // Java Programming


// This program allows the user to play BlackJack with  
// a certain amount of money the user wishes to buy in  
// chips.  Programming Notes:                         
// 1. Program must be case-insitive!                    
// 2. Must utilize character manipulation                
// 3. Must keep track of both player and dealer's totals
// 4. Must have a minimum bet                           
// 5. Must have a method that error checks numbers       
                                                       

// Method Definitions:                               
// 1. buyChip METHOD:                               
//    - Ask player to buy chip                          
//    - take that amount and use it                   
// 2. bet METHOD:                               
//    - Ask player how much to bet                   
//    - Return bet amount to deduct from total chip amount
// 3. dealCard METHOD:                               
//    - Deal cards for player and dealer              
// 4. printCardDealer METHOD:                          
//    - Determine if card is 1-10 or J, Q, K, A to print  
// 5. printCardPlayer METHOD:                            
//    - Determine if card is 1-10 or J, Q, K, A to print  
                                            
import java.text.*;
import java.io.*;
import java.util.*;

class Card
{
      public static void main (String [] args) throws IOException
      {
            DataInputStream stdin = new DataInputStream (System.in);
            DecimalFormat numberFmt = new DecimalFormat("##,###.00");

// Declare constants and variables

      
//Player's 1st card, Player's 2nd card, Player's total points, dealer's 1st card
//dealer's 2nd card, dealer's total

      int user1 = 0, user2 = 0, user_total = 0, dealer_1 = 0, dealer_2 = 0,
                                                dealer_tot = 0;

//total amount of chip

      double       total = 0.0;

//continue the program? stand, hit or doubledown, dealer wins?,
//player wins? who is the winner?
      
      char cont_game = 'Y', sh = 'S', win_dealer = 'N', win_user = 'N',
                                                winning      = 'N';

// 1. Welcome the player

      System.out.println("\n\n\n");      
      System.out.println("        WELCOME TO BLACKJACK        ");
            
      System.out.println("\n\n");
      System.out.println("\t ARE YOU READY.....");
      System.out.println("\n");
      System.out.println("\t Let's Get The Game Begin! \n");



// 2. This will control my entire program

// a. This is for buying chip

      total = buyChip();


      cont_game = 'Y';

      while (cont_game == 'Y')
      {

      user_total  = 0;
      dealer_tot  = 0;


// b. This will subtract from the player's money

      total = total - bet();
      System.out.println("Your total of chip is now:  " + numberFmt.format(total));

// c. Cards for dealer

      dealer_1 = dealCard();
      printCardDealer(dealer_1);
      dealer_1 = cardScore11(dealer_1);


      dealer_2 = dealCard();
      printCardDealer(dealer_2);
      if (dealer_1 < 11)
      {
      dealer_2 = cardScore11(dealer_2);
      }
      else
      {
      dealer_2 = cardScore(dealer_2);
      }

      dealer_tot = dealer_1 +  dealer_2;
      System.out.println("Dealer total points: " + dealer_tot);

// d. Determine if dealer gets BlackJack

      win_dealer = bj(dealer_1, dealer_2);
      System.out.println("\nDealer win?: "+ win_dealer);

// e. Cards for player

      user1 = dealCard();
      printCardUser(user1, 1);
      user1 = cardScore11(user1);

      user2 = dealCard();
      printCardUser(user2, 2);
      if (user1 < 11)
      {
      user2 = cardScore11(user2);
      }
      else
      {
      user2 = cardScore(user2);
      }
      user_total = user1 + user2;
      System.out.println("Your total points: " + user_total);

// f. Determine if the player gets BlackJack

      win_user = bj(user1, user2);
      System.out.println("\nUser win?: " + win_user);

// g. anyone wins?
      
            if ((win_user == 'N') && (win_dealer == 'N'))
            {
                  winning = 'N';
            }
            else
            {
                  winning = 'Y';
            }

                  while (winning == 'N')
            {

// h. Ask user to stand or hit

            sh = sh();
            System.out.println("\nYou want to:  " + sh);

            switch (sh)
            {
            case 'S': stand(dealer_1, dealer_2, dealer_tot);
            break;
            case 'H': hit(user1, user2 + user_total);
            break;
            default:;
            break;
            }
            winning = 'Y';
            }//while winning

            cont_game = end_game();

            }      
      }

      
      
// 3. This will ask the player how many chips she/he wants to buy

      static double buyChip() throws IOException
      {
            double total = 0.0;

            DataInputStream stdin = new DataInputStream (System.in);
            DecimalFormat numberFmt = new DecimalFormat("##,###.00");

            System.out.println("\nJust keep in mind that minimum Bet is $15");
            System.out.print("\nHow much chip would you want to buy?(One chip = $1):  ");
            System.out.flush();
            total = Double.parseDouble(stdin.readLine());

            System.out.println("Your total chip is: " + numberFmt.format(total));
            return total;

      }// buyChip

// 4. This will ask the player to place his/her bit

      static double bet()  throws IOException
      {
            double bet   = 0.0;

            DataInputStream stdin = new DataInputStream (System.in);
            DecimalFormat numberFmt = new DecimalFormat("##,###.00");

            System.out.print("\nYou are in a $15 table (Please place your bet!):  ");
            System.out.flush();
            bet = Double.parseDouble(stdin.readLine());

            while (bet < 15)
            {
                  System.out.println("\n SORRY MY FRIEND YOUR BET IS NOT ENOUGH ");
                  System.out.println("Minimum bet is:  $15");
                  System.out.print("\nYou are in a $15 table (Please place your bet!):  ");
                  System.out.flush();
                  bet = Double.parseDouble(stdin.readLine());

            }//while

            return bet;

      }//bet


// 5. This is the method for generating random cards

      static int dealCard()
      {

            for (long i = 0; i <= 100000000; i++) ;

            Random card = new Random();
            return ((Math.abs(card.nextInt())) % 13 + 1);

      }//dealCard


// 6. This will print or show the dealer's cards

      static void printCardDealer(int card)
      {

            switch (card)
            {
                  case 1: System.out.println("\nDealer's card shows:  A");
                        break;
                  case 11: System.out.println("\nDealer's card shows:  J");
                        break;
                  case 12: System.out.println("\nDealer's card shows:  Q");
                        break;
                  case 13: System.out.println("\nDealer's card shows:  K");
                        break;
                  default: System.out.println("\nDealer's card shows:  " + card);
                  
            }

      }//printCardDealer

// 7. This will print or show the player's card

      static void printCardUser(int card, int cardNum)
      {
            switch (card)
            {
                  case 1: System.out.println("\nYour card #" + cardNum +":  A");
                        break;
                  case 11: System.out.println("Your card #" + cardNum +":  J");
                        break;
                  case 12: System.out.println("Your card #" + cardNum +":  Q");
                        break;
                  case 13: System.out.println("Your card #" + cardNum +":  K");
                        break;
                  default: System.out.println("Your card #" + cardNum +":  " + card);
            }

      }//printCardUser


// 8. This will generate card scores from 11 to 10 which 11 is ace

      static int cardScore11(int card)
      {
            int cardOut = 0;

                  switch (card)
                  {
                        case 1: cardOut = 11;
                              break;
                        case 2: cardOut = 2;
                              break;
                        case 3: cardOut = 3;
                              break;
                        case 4: cardOut = 4;
                              break;
                        case 5: cardOut = 5;
                              break;
                        case 6: cardOut = 6;
                              break;
                        case 7: cardOut = 7;
                              break;
                        case 8: cardOut = 8;
                              break;
                        case 9: cardOut = 9;
                              break;
                        default: cardOut = 10;
                              break;
                  }//switch
            return cardOut;
      }

// 9. This will generate the card from 1 to 10 which 1 is ace

      static int cardScore(int card)
      {
            int cardOut = 0;

                  switch (card)
                  {
                        case 1: cardOut = 1;
                              break;
                        case 2: cardOut = 2;
                              break;
                        case 3: cardOut = 3;
                              break;
                        case 4: cardOut = 4;
                              break;
                        case 5: cardOut = 5;
                              break;
                        case 6: cardOut = 6;
                              break;
                        case 7: cardOut = 7;
                              break;
                        case 8: cardOut = 8;
                              break;
                        case 9: cardOut = 9;
                              break;
                        default: cardOut = 10;
                              break;
                  }//switch
            return cardOut;
      }


// 10. This method will calculate the black jack

      static char bj(int card1, int card2)
      {

            char win = 'N';

            if ((card1 == 11) && (card2 == 10))
            {
                  win = 'Y';
            }

            if ((card1 == 10) && (card2 == 11))
            {
                  win = 'Y';
            }

            return win;
      }//bj


// 11. This will print the total for dealr and player if choose to stand
       //Also if your cards are soft 17 or hard 17
      static char hit(int user1, int user2)
      {
            char hit = 'H';
            if((user1 == 'H') && (user2 == 'H'))
            {
                  hit+=hit +1;
            }
            return hit;
      }
      static int stand(int dealer_total, int dealer1, int dealer2)
      {
            int dealer_n     = 0;      // dealer's nth card

            //dealer soft 18 case1
            while ((dealer1 != 11) && (dealer2 != 7))
            {
                  //dealer , hard 17
                  while (dealer_total < 17)
                  {
                        dealer_n = dealCard();
                        printCardDealer(dealer_n);
                        dealer_total = (dealer_total + cardScore(dealer_n));

                  }//for hard

            }//for soft

            //dealer soft 18 case2
            while ((dealer2 != 11) && (dealer1 != 7))
            {

                  //dealer , hard 17
                  while (dealer_total < 17)
                  {
                        dealer_n = dealCard();
                        printCardDealer(dealer_n);
                        dealer_total = (dealer_total + cardScore(dealer_n));

                  }//for hard

            }//for soft

            return dealer_total;
      }//stand


// 12. The method for Hit, Stand

      static char sh() throws IOException
      {

            char sh = '0';
            DataInputStream stdin = new DataInputStream (System.in);

            System.out.print("\nStand (S) or Hit (H)?:  ");
            System.out.flush();
            sh = (stdin.readLine().toUpperCase()).charAt(0);
            
            while ((sh != 'S') && (sh != 'H'))
            {

                  System.out.println(" THAT IS NOT A VALID ENTRY PLEASE TRY AGAIN ");

                  System.out.print("\nStand (S) or Hit (H)?:  ");
                  System.out.flush();
                  sh = (stdin.readLine().toUpperCase()).charAt(0);
            }//while

                  return sh;

      }//shd

// 13. This will show the end of the game

      static char end_game() throws IOException
      {
            char cont_game = 'Y';
            DataInputStream stdin = new DataInputStream (System.in);

            System.out.print("Do you want to continue the game?(YES OR NO):  ");
            System.out.flush();
            cont_game = (stdin.readLine().toUpperCase()).charAt(0);


            while ((cont_game != 'Y') && (cont_game != 'N'))
            {

                  System.out.println(" THAT IS NOT A VALID ENTRY PLEASE TRY AGAIN ");

                  System.out.print("Do you want to continue the game?(YES OR NO):  ");
                  System.out.flush();
                  cont_game = (stdin.readLine().toUpperCase()).charAt(0);
            }//while

            return cont_game;
      }//end_game




}//class blackjack
0
Comment
Question by:hedge243
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7 Comments
 
LVL 14

Accepted Solution

by:
sudhakar_koundinya earned 2000 total points
ID: 11838269
I don't know what the problems you are facing

but I can say following metthod reduces ur applicaton performance

// 5. This is the method for generating random cards

     static int dealCard()
     {

          for (long i = 0; i <= 100000000; i++) ;

          Random card = new Random();
          return ((Math.abs(card.nextInt())) % 13 + 1);

     }//dealCard
0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 11838278
>>for (long i = 0; i <= 100000000; i++) ;

Instead of that I would prefer some thing like this

try
{
  new Thread().sleep(2);//waits for 2 milli secs
}
catch(Exception ex){}
0
 
LVL 14

Expert Comment

by:sudhakar_koundinya
ID: 11838306
ur code is going to infinite loop

I hade made soe changes

test it

//the progamming solutions have to be made with very basic programming skills
//so that I can fully understand program and I have very basic skills (and also I might not be
//that smart, sorry).
//these are the problems:

 //1. when i say Hit it should add one card to user card.
 //2. when the user wins it should add the money
 //3. when i say stand it should give me the total and end the game.
//these are the problems with my program it does not do those three things.


  // Java Programming


// This program allows the user to play BlackJack with  
// a certain amount of money the user wishes to buy in  
// chips.  Programming Notes:                      
// 1. Program must be case-insitive!                    
// 2. Must utilize character manipulation                
// 3. Must keep track of both player and dealer's totals
// 4. Must have a minimum bet                        
// 5. Must have a method that error checks numbers      
                                                       

// Method Definitions:                          
// 1. buyChip METHOD:                          
//    - Ask player to buy chip                      
//    - take that amount and use it                
// 2. bet METHOD:                          
//    - Ask player how much to bet                
//    - Return bet amount to deduct from total chip amount
// 3. dealCard METHOD:                          
//    - Deal cards for player and dealer            
// 4. printCardDealer METHOD:                      
//    - Determine if card is 1-10 or J, Q, K, A to print  
// 5. printCardPlayer METHOD:                        
//    - Determine if card is 1-10 or J, Q, K, A to print  
                                     
import java.text.*;
import java.io.*;
import java.util.*;

class Card
{
     public static void main (String [] args) throws IOException
     {
          DataInputStream stdin = new DataInputStream (System.in);
          DecimalFormat numberFmt = new DecimalFormat("##,###.00");

// Declare constants and variables

     
//Player's 1st card, Player's 2nd card, Player's total points, dealer's 1st card
//dealer's 2nd card, dealer's total

     int user1 = 0, user2 = 0, user_total = 0, dealer_1 = 0, dealer_2 = 0,
                                        dealer_tot = 0;

//total amount of chip

     double       total = 0.0;

//continue the program? stand, hit or doubledown, dealer wins?,
//player wins? who is the winner?
     
     char cont_game = 'Y', sh = 'S', win_dealer = 'N', win_user = 'N',
                                        winning     = 'N';

// 1. Welcome the player

     System.out.println("\n\n\n");    
     System.out.println("        WELCOME TO BLACKJACK        ");
         
     System.out.println("\n\n");
     System.out.println("\t ARE YOU READY.....");
     System.out.println("\n");
     System.out.println("\t Let's Get The Game Begin! \n");



// 2. This will control my entire program

// a. This is for buying chip

     total = buyChip();


     cont_game = 'Y';

     while (cont_game == 'Y')
     {

     user_total  = 0;
     dealer_tot  = 0;


// b. This will subtract from the player's money

     total = total - bet();
     System.out.println("Your total of chip is now:  " + numberFmt.format(total));

// c. Cards for dealer

     dealer_1 = dealCard();
     printCardDealer(dealer_1);
     dealer_1 = cardScore11(dealer_1);


     dealer_2 = dealCard();
     printCardDealer(dealer_2);
     if (dealer_1 < 11)
     {
     dealer_2 = cardScore11(dealer_2);
     }
     else
     {
     dealer_2 = cardScore(dealer_2);
     }

     dealer_tot = dealer_1 +  dealer_2;
     System.out.println("Dealer total points: " + dealer_tot);

// d. Determine if dealer gets BlackJack

     win_dealer = bj(dealer_1, dealer_2);
     System.out.println("\nDealer win?: "+ win_dealer);

// e. Cards for player

     user1 = dealCard();
     printCardUser(user1, 1);
     user1 = cardScore11(user1);

     user2 = dealCard();
     printCardUser(user2, 2);
     if (user1 < 11)
     {
     user2 = cardScore11(user2);
     }
     else
     {
     user2 = cardScore(user2);
     }
     user_total = user1 + user2;
     System.out.println("Your total points: " + user_total);

// f. Determine if the player gets BlackJack

     win_user = bj(user1, user2);
     System.out.println("\nUser win?: " + win_user);

// g. anyone wins?
     
          if ((win_user == 'N') && (win_dealer == 'N'))
          {
               winning = 'N';
          }
          else
          {
               winning = 'Y';
          }

               while (winning == 'N')
          {

// h. Ask user to stand or hit

          sh = sh();
          System.out.println("\nYou want to:  " + sh);

          switch (sh)
          {
          case 'S': stand(dealer_1, dealer_2, dealer_tot);
          break;
          case 'H': hit(user1, user2 + user_total);
          break;
          default:;
          break;
          }
          winning = 'Y';
          }//while winning

          cont_game = end_game();

          }    
     }

     
     
// 3. This will ask the player how many chips she/he wants to buy

     static double buyChip() throws IOException
     {
          double total = 0.0;

          DataInputStream stdin = new DataInputStream (System.in);
          DecimalFormat numberFmt = new DecimalFormat("##,###.00");

          System.out.println("\nJust keep in mind that minimum Bet is $15");
          System.out.print("\nHow much chip would you want to buy?(One chip = $1):  ");
          System.out.flush();
          total = Double.parseDouble(stdin.readLine());

          System.out.println("Your total chip is: " + numberFmt.format(total));
          return total;

     }// buyChip

// 4. This will ask the player to place his/her bit

     static double bet()  throws IOException
     {
          double bet   = 0.0;

          DataInputStream stdin = new DataInputStream (System.in);
          DecimalFormat numberFmt = new DecimalFormat("##,###.00");

          System.out.print("\nYou are in a $15 table (Please place your bet!):  ");
          System.out.flush();
          bet = Double.parseDouble(stdin.readLine());

          while (bet < 15)
          {
               System.out.println("\n SORRY MY FRIEND YOUR BET IS NOT ENOUGH ");
               System.out.println("Minimum bet is:  $15");
               System.out.print("\nYou are in a $15 table (Please place your bet!):  ");
               System.out.flush();
               bet = Double.parseDouble(stdin.readLine());

          }//while

          return bet;

     }//bet


// 5. This is the method for generating random cards

     static int dealCard()
     {

          for (long i = 0; i <= 100000000; i++) ;

          Random card = new Random();
          return ((Math.abs(card.nextInt())) % 13 + 1);

     }//dealCard


// 6. This will print or show the dealer's cards

     static void printCardDealer(int card)
     {

          switch (card)
          {
               case 1: System.out.println("\nDealer's card shows:  A");
                    break;
               case 11: System.out.println("\nDealer's card shows:  J");
                    break;
               case 12: System.out.println("\nDealer's card shows:  Q");
                    break;
               case 13: System.out.println("\nDealer's card shows:  K");
                    break;
               default: System.out.println("\nDealer's card shows:  " + card);
               
          }

     }//printCardDealer

// 7. This will print or show the player's card

     static void printCardUser(int card, int cardNum)
     {
          switch (card)
          {
               case 1: System.out.println("\nYour card #" + cardNum +":  A");
                    break;
               case 11: System.out.println("Your card #" + cardNum +":  J");
                    break;
               case 12: System.out.println("Your card #" + cardNum +":  Q");
                    break;
               case 13: System.out.println("Your card #" + cardNum +":  K");
                    break;
               default: System.out.println("Your card #" + cardNum +":  " + card);
          }

     }//printCardUser


// 8. This will generate card scores from 11 to 10 which 11 is ace

     static int cardScore11(int card)
     {
          int cardOut = 0;

               switch (card)
               {
                    case 1: cardOut = 11;
                         break;
                    case 2: cardOut = 2;
                         break;
                    case 3: cardOut = 3;
                         break;
                    case 4: cardOut = 4;
                         break;
                    case 5: cardOut = 5;
                         break;
                    case 6: cardOut = 6;
                         break;
                    case 7: cardOut = 7;
                         break;
                    case 8: cardOut = 8;
                         break;
                    case 9: cardOut = 9;
                         break;
                    default: cardOut = 10;
                         break;
               }//switch
          return cardOut;
     }

// 9. This will generate the card from 1 to 10 which 1 is ace

     static int cardScore(int card)
     {
          int cardOut = 0;

               switch (card)
               {
                    case 1: cardOut = 1;
                         break;
                    case 2: cardOut = 2;
                         break;
                    case 3: cardOut = 3;
                         break;
                    case 4: cardOut = 4;
                         break;
                    case 5: cardOut = 5;
                         break;
                    case 6: cardOut = 6;
                         break;
                    case 7: cardOut = 7;
                         break;
                    case 8: cardOut = 8;
                         break;
                    case 9: cardOut = 9;
                         break;
                    default: cardOut = 10;
                         break;
               }//switch
          return cardOut;
     }


// 10. This method will calculate the black jack

     static char bj(int card1, int card2)
     {

          char win = 'N';

          if ((card1 == 11) && (card2 == 10))
          {
               win = 'Y';
          }

          if ((card1 == 10) && (card2 == 11))
          {
               win = 'Y';
          }

          return win;
     }//bj


// 11. This will print the total for dealr and player if choose to stand
       //Also if your cards are soft 17 or hard 17
     static char hit(int user1, int user2)
     {
          char hit = 'H';
          if((user1 == 'H') && (user2 == 'H'))
          {
               hit+=hit +1;
          }
          return hit;
     }
     static int stand(int dealer_total, int dealer1, int dealer2)
     {
          int dealer_n     = 0;     // dealer's nth card

          //dealer soft 18 case1
 //         while ((dealer1 != 11) && (dealer2 != 7))
            if((dealer1 != 11) && (dealer2 != 7))
          {
               //dealer , hard 17
               while (dealer_total < 17)
               {
                    dealer_n = dealCard();
                    printCardDealer(dealer_n);
                    dealer_total = (dealer_total + cardScore(dealer_n));

               }//for hard

          }//for soft

          //dealer soft 18 case2
          //while ((dealer2 != 11) && (dealer1 != 7))
              if ((dealer2 != 11) && (dealer1 != 7))
          {

               //dealer , hard 17
               while (dealer_total < 17)
               {
                    dealer_n = dealCard();
                    printCardDealer(dealer_n);
                    dealer_total = (dealer_total + cardScore(dealer_n));

               }//for hard

          }//for soft

          return dealer_total;
     }//stand


// 12. The method for Hit, Stand

     static char sh() throws IOException
     {

          char sh = '0';
          DataInputStream stdin = new DataInputStream (System.in);

          System.out.print("\nStand (S) or Hit (H)?:  ");
          System.out.flush();
          sh = (stdin.readLine().toUpperCase()).charAt(0);
         
          while ((sh != 'S') && (sh != 'H'))
          {

               System.out.println(" THAT IS NOT A VALID ENTRY PLEASE TRY AGAIN ");

               System.out.print("\nStand (S) or Hit (H)?:  ");
               System.out.flush();
               sh = (stdin.readLine().toUpperCase()).charAt(0);
          }//while

               return sh;

     }//shd

// 13. This will show the end of the game

     static char end_game() throws IOException
     {
          char cont_game = 'Y';
          DataInputStream stdin = new DataInputStream (System.in);

          System.out.print("Do you want to continue the game?(YES OR NO):  ");
          System.out.flush();
          cont_game = (stdin.readLine().toUpperCase()).charAt(0);


          while ((cont_game != 'Y') && (cont_game != 'N'))
          {

               System.out.println(" THAT IS NOT A VALID ENTRY PLEASE TRY AGAIN ");

               System.out.print("Do you want to continue the game?(YES OR NO):  ");
               System.out.flush();
               cont_game = (stdin.readLine().toUpperCase()).charAt(0);
          }//while

          return cont_game;
     }//end_game




}//class blackjack
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