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2Aug/111

Blackjack – Java Programming

So after I went through a few more tutorials, I decided to create another app. I've integrated it to my original app, so in the welcome screen, it will ask if I want to use the Calculator or play Blackjack.

My first attempt at building a Blackjack game via Java programming. It works and is quite simple at the moment. The more I update it, the more complex it will get!

Here is the source code for the game. It's very simple and probably very messy! But hey... I'm still learning :)

package Blackjacks;

import java.util.Random;
import java.util.Scanner;

public class Blackjack {

	public static void main(String[] args) {

		//Scanner//
		Scanner scan = new Scanner(System.in);

		//Game Background Object//
		BJBackground b = new BJBackground();

		//Game Randomizer Object//
		Random r = new Random();

		//Dealing Cards and Generating Computers Cards//
		System.out.println("Welcome to Blackjack.");
		System.out.println("Would you like to play Blackjack? Yes or No");
		String input = scan.next();
		if (input.equalsIgnoreCase("yes")) {
            b.play(true);
		}
		else return;	// Assuming they type 'no' or something else, we can just quit the program here.

		//Create Random Card Total for Computer//
		int computer = 14 + r.nextInt(9);
        //Stores Card Total for Computer//
	   	b.setcomputer(computer); 

		//Creates Random Number for First Card//
		int fcard = 1 + r.nextInt(11);
		//Stores Card Number on First Card int//
        b.setfcard(fcard);
        //Creates Random Number for Second Card//
        int scard = 1 + r.nextInt(10);
        //Stores Card Number for Second Card int//
        b.setscard(scard);
        //Updates and Stores Player Score//
        int player = scard + fcard;
        b.setplayer(player);
		System.out.println("Your first card was " + b.getfcard() + " and your second card was " + b.getscard());

		//While Loop//
		while (b.play()) {
               System.out.println("Your total is " + b.getplayer());
               if (b.getplayer() == 21) {
            	   System.out.println("You have 21! You hit Blackjack!");
               }
               else System.out.println("Would you like another card? Hit or Stand");
               input = scan.next();

	        	   while (input.equalsIgnoreCase("Hit")) {
	            		//Creates Random Number for New Card//
	           		   	int ncard = 1 + r.nextInt(10);

	           		   	b.setncard(ncard);
	           		   	b.setplayer(ncard);

	           		   	System.out.println("Your new card is " + b.getncard());
	           		   	System.out.println("Your new total is " + b.getplayer());

	           		   	b.resetncard();

	           		   	if (b.getplayer() <= 21); {
		           		System.out.println("Would you like another card? Hit or Stand");
		           		input = scan.next();
		           		}
	        	   }

	        	   if (input.equalsIgnoreCase("Stand")) {
	        		   if ( b.getplayer() > 21 ) {
				       System.out.println("You had " + b.getplayer() + " and the computer had " + b.getcomputer() + ". The computer beat you..");
				       return;
				       }
				       if ( b.getplayer() > b.getcomputer() ) {
				       System.out.println("You had " + b.getplayer() + " and the computer had " + b.getcomputer() + ". You win!");
				       return;
				       }
				       if ( b.getplayer() < b.getcomputer() ) {
				       System.out.println("You had " + b.getplayer() + " and the computer had " + b.getcomputer() + ". You lose!");
				       return;
				       }
				       if ( b.getplayer() == b.getcomputer() ) {
				       System.out.println("You had " + b.getplayer() + " and the computer had " + b.getcomputer() + ". You drew!");
				       return;
	        	   }
        	   }
		}
	}
}

package Blackjacks;

public class BJBackground {

	//First Card//
	private int fcard = 0;

	//Second Card//
	private int scard = 0;

	//
	private int ncard = 0;

	//Player Card Total//
	private int player = (fcard + scard + ncard);

	//Computer Cards//
	private int computer = 0;

	//Boolean to Play//
    private boolean play = true;

	public void play(boolean play) {
	   this.play = play;
	}
	public boolean play() {
	   return play;
	}
	//Boolean for New card//
	private boolean newcard = true;

	public boolean newcard() {
		return newcard;
	}
	//Sets First Card's new amount//
	public void setfcard(int amount) {
	        this.fcard += amount;
	}
	//Allows Blackjack Class to know what the First Cards number is when called//
	public int getfcard() {
	        return fcard;
	}
	//Sets Second Card's new amount//
	public void setscard(int amount) {
	        this.scard += amount;
	}
	//Allows Blackjack Class to know what the Second Cards number is when called//
	public int getscard() {
	        return scard;
	}
	//Sets new Card's amount//
	public void setncard(int amount) {
			this.ncard +=amount;
	}
	public int getncard() {
			return ncard;
	}
	public void resetncard() {
        ncard = 0;
	}
	public void setplayer(int amount) {
        this.player += amount;
	}
	public int getplayer() {
			return player;
	}
	//Sets Computer Score//
	public void setcomputer(int amount) {
        this.computer += amount;
	}
	//Allows Blackjack Class to know what the Computer score is//
    public int getcomputer() {
        return computer;
    }

}

If anyone has any tips on how I can improve this, please do let me know!

I'm trying to figure out a way to allow you to take more than just one card at the start... Hopefully I'll figure it out soon!

1Aug/110

My First Java App – Java Programming

Yeah so like, I know this isn't really a big deal to most people but I'm starting college in a couple of weeks and wanted to get a head start. So I decided to get a few online tutorials on Java programming and found something perfect.

It's a set of video tutorials done by a guy named Bucky Roberts on YouTube. The video tutorials are really easy to follow and give you a basic idea of how Java programming works - especially for us newbies. You should check him out! Here is a link to his YouTube channel:

http://www.youtube.com/user/thenewboston

Anyway, after an hour or so of watching his videos and following along, I have managed to somewhat make the backbone of a calculator and blackjack game. No interface or nothing yet, but that'll come later as I continue watching his videos.

Here is the source code for any of you who care:

import java.util.Scanner;

public class Welcome {
	public static void main(String args[]){

		//User Introduction//
		Scanner input = new Scanner(System.in);
		Calculator calcObject = new Calculator();
		System.out.println("Hi, what is your name?");
		String name = input.nextLine();
		Scanner input2 = new Scanner(System.in);
		System.out.println("Hi, " + name + ". Would you like to use our calulator? <Y/N>");
		String answer = input2.nextLine();
		if (answer.equals("Y"))
		calcObject.calculator(name);
		else if (answer.equals("y"))
			calcObject.calculator(name);
		else if (answer.equals("N"))
			System.out.println("Aww! Okay " + name + ". Goodbye... :( ");
		else if (answer.equals("n"))
			System.out.println("Aww! Okay " + name + ". Goodbye... :( ");

	}

}

import java.util.*;

public class Calculator {
	public void calculator(String name) {
		char again = 'Y';
		while(again == 'Y' || again == 'y')
		{
		Scanner calc = new Scanner(System.in);
		double fnum, snum, answer = 0;
		String calcu;
		System.out.println("Enter first number(s) for calculation: ");
		fnum = calc.nextDouble();
		System.out.println("What would you like to do? Use one of the following: +,-,* or /");
		Scanner mdsa = new Scanner(System.in);
		calcu = mdsa.next();
		System.out.println("Enter second number for calculation: ");
		snum = calc.nextDouble();
		{
			if (calcu.equals("+")) answer = fnum + snum;
			else if (calcu.equals("-")) answer = fnum - snum;
			else if (calcu.equals("*")) answer = fnum * snum;
			else if (calcu.equals("/")) answer = fnum / snum;
			}
		System.out.println(name + ", the answer to your calculation is: " + answer);

		Scanner response = new Scanner(System.in);
		System.out.print("Would you like to do another calculation? <Y/N>");
		again = response.nextLine().charAt(0);

		}
}

}

Yes it is very basic, but then again I've only just started learning Java programming over the last couple of hours, so don't sue me.

As I continue watching his videos, I'll update this post with any additions I make to the source code. Hopefully I'll be able to make a nice looking calculator by the end of it... or at least until I give up! Hehe.

Well yeah. I'm having a lot of fun with this!

Check back later...