Adding elemants of an array together
I have an array storing numbers. I have a combo box with choices in it, when a choice is made a number from the array is displayed in a text field. I want to add the numbers together that have been selected. I created a variable called total and used the code.
total = code + code;
i get the error, operator + cannot be applied to int[],int[]
any suggestions please.
I have implemented the loop that the nice dr meant. The program compiles ok and seems to work except the output is not being displayed and when i click the sum total button(but4) i get the following message:
--------------------Configuration: MySuperMktPro - JDK version 1.6.0_01 <Default> - <Default>--------------------
Starting My Supermarket Project...
Action performed from: comboBoxChanged
Action performed from: Buy
Action performed from: comboBoxChanged
Action performed from: Buy
Action performed from: Sum Total
Exception in thread "AWT-EventQueue-0" java.lang.NullPointerException
at CheckoutView.actionPerformed(MySuperMktPro.java:213)
at javax.swing.AbstractButton.fireActionPerformed(AbstractButton.java:1995)
at javax.swing.AbstractButton$Handler.actionPerformed(AbstractButton.java:2318)
at javax.swing.DefaultButtonModel.fireActionPerformed(DefaultButtonModel.java:387)
at javax.swing.DefaultButtonModel.setPressed(DefaultButtonModel.java:242)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(BasicButtonListener.java:236)
at java.awt.Component.processMouseEvent(Component.java:6038)
at javax.swing.JComponent.processMouseEvent(JComponent.java:3260)
at java.awt.Component.processEvent(Component.java:5803)
at java.awt.Container.processEvent(Container.java:2058)
at java.awt.Component.dispatchEventImpl(Component.java:4410)
at java.awt.Container.dispatchEventImpl(Container.java:2116)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.LightweightDispatcher.retargetMouseEvent(Container.java:4322)
at java.awt.LightweightDispatcher.processMouseEvent(Container.java:3986)
at java.awt.LightweightDispatcher.dispatchEvent(Container.java:3916)
at java.awt.Container.dispatchEventImpl(Container.java:2102)
at java.awt.Window.dispatchEventImpl(Window.java:2429)
at java.awt.Component.dispatchEvent(Component.java:4240)
at java.awt.EventQueue.dispatchEvent(EventQueue.java:599)
at java.awt.EventDispatchThread.pumpOneEventForFilters(EventDispatchThread.java:273)
at java.awt.EventDispatchThread.pumpEventsForFilter(EventDispatchThread.java:183)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(EventDispatchThread.java:173)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:168)
at java.awt.EventDispatchThread.pumpEvents(EventDispatchThread.java:160)
I will post my full code as i am now absolutely out of ideas and i need to do so much more to this program.
Thankyou
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Observer; //new
import java.util.Observable;//new
import javax.swing.BorderFactory;
import javax.swing.border.Border;
import javax.swing.border.TitledBorder;
public class MySuperMktPro {
public MySuperMktPro() {
CheckoutView Check1 = new CheckoutView(1,0,0);
CheckoutView Check2 = new CheckoutView(2,300,0);
CheckoutView Check3 = new CheckoutView(3,600,0);
CheckoutView Check4 = new CheckoutView(4,0,350);
CheckoutView Check5 = new CheckoutView(5,600,350);
OfficeView off111 = new OfficeView();
public static void main(String[] args) {
System.out.println("Starting My Supermarket Project...");
MySuperMktPro startup = new MySuperMktPro();
class CheckoutView implements ActionListener {
private OfficeView off1;
private JFrame chk1;
private Container cont1;
private Dimension screensize,tempDim;
private JPanel pan1,pan2,pan3,pan4,pan5;
private JButton buyBut,prodCode;
private JButton purchase,cashBack,manual,remove,disCo;
private JButton but1,but2,finaLi1,but4,but5,but6;
private JTextArea tArea1,tArea2;
private JTextField tf1,tf2,tf3,list2;
private JComboBox prodList;
private JLabel lab1,lab2,lab3,lab4,lab5,lab6,lab7;
private int checkoutID; //New private int for all methods of this class
private int passedX,passedY,counter;
private String prods[];
private JButton rb1,rb2,rb3,rb4;
private double price[],total; // not used
private int code[];
public CheckoutView(int passedInteger, int passedX, int passedY) {
checkoutID = passedInteger; //Store the int passed into the method
this.passedX = passedX;
this.passedY = passedY;
drawCheckoutGui();
public void drawCheckoutGui() {
prods= new String[]{"Products","Beans", "Eggs", "bread", "Jam", "Butter",
"Cream", "Sugar", "Peas", "Milk", "Bacon", "Spaghetti",
"Corn Flakes", "Carrots", "Oranges", "Bananas", "Snickers",
"Wine", "Beer", "Lager", "Cheese"};
code = new int [21];
for(int b = 0; b < code.length; b++) {
code[b] = b+1;
price = new double[]{0.0,0.65, 0.84, 0.98, 0.75, 0.45, 0.65,
1.78, 1.14, 0.98, 0.99, 0.98, 0.65, 1.69, 2.99,
0.99, 2.68, 0.89, 5.99, .54, 2.99};
for(int i=0; i<price.length; i++)
total=total+price;
screensize = Toolkit.getDefaultToolkit().getScreenSize();
chk1 = new JFrame();
chk1.setTitle("Checkout #" + checkoutID); //Use the new stored int
chk1.setSize(300,350);
chk1.setLocation(passedX,passedY);
chk1.setLayout(new GridLayout(5,1));
//chk1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cont1 = chk1.getContentPane();
//chk1.setLayout(new BorderLayout());
pan1 = new JPanel();
pan2 = new JPanel();
pan3 = new JPanel();
pan4 = new JPanel();
pan5 = new JPanel();
//panel 1
pan1.setLayout(new FlowLayout());
pan1.setBackground(Color.black);
prodList = new JComboBox(prods);
prodList.setMaximumRowCount(2);
prodList.addActionListener(this);
but1 = new JButton("Buy");
but1.addActionListener(this);
lab1 = new JLabel("Products");
lab1.setForeground(Color.white);
lab1.setBorder(BorderFactory.createLineBorder(Color.white));
pan1.add(lab1);
pan1.add(prodList);
pan1.add(but1);
//panel 2
pan2 = new JPanel();
pan2.setLayout(new BorderLayout());
pan2.setBackground(Color.black);
lab3 = new JLabel(" Enter Product Code");
lab3.setForeground(Color.white);
tArea2 = new JTextArea(8,10);
tArea2.setBorder(BorderFactory.createLineBorder(Color.white));
lab5 = new JLabel(" Tesco's ");
lab5.setForeground(Color.white);
lab5.setBorder(BorderFactory.createLineBorder(Color.white));
lab6 = new JLabel("Checkout");
lab6.setForeground(Color.white);
lab6.setBorder(BorderFactory.createLineBorder(Color.white));
lab7 = new JLabel("Your preferred payment method is ");
lab7.setForeground(Color.cyan);
//lab7.setBorder(BorderFactory.createLineBorder(Color.white));
pan2.add(lab7,"North");
pan2.add(lab6,"East");
pan2.add(tArea2,"Center");
pan2.add(lab5,"West");
pan2.add(lab3,"South");
// panel 3
pan3 = new JPanel();
pan3.setLayout(new FlowLayout());
pan3.setBackground(Color.black);
manual = new JButton("Manual");
manual.addActionListener(this);
manual.setBorder(BorderFactory.createLineBorder(Color.white));
remove = new JButton("Remove");
remove.addActionListener(this);
remove.setBorder(BorderFactory.createLineBorder(Color.white));
tf1 = new JTextField(5);
pan3.add(manual);
pan3.add(tf1);
pan3.add(remove);
// panel 4
pan4 = new JPanel();
pan4.setLayout(new FlowLayout());
pan4.setBackground(Color.black);
finaLi1 = new JButton("Finalise");
// finaLi1.addActionListener(this);
cashBack = new JButton("Cashback");
JTextField list2 = new JTextField(5);
but4 = new JButton(" Sum Total");
but4.addActionListener(this);
but4.setBorder(BorderFactory.createLineBorder(Color.white));
cashBack.setBorder(BorderFactory.createLineBorder(Color.white));
pan4.add(cashBack);
pan4.add(list2);
pan4.add(but4);
// panel 5
pan5 = new JPanel();
pan5.setLayout(new GridLayout(2,3));
pan5.setBackground(Color.black);
disCo = new JButton("Discount");
disCo.addActionListener(this);
disCo.setBorder(BorderFactory.createLineBorder(Color.black));
but6 = new JButton("Finalise");
but6.addActionListener(this);
but6.setBorder(BorderFactory.createLineBorder(Color.black));
rb1 = new JButton("Cash");
rb1.addActionListener(this);
rb1.setBorder(BorderFactory.createLineBorder(Color.black));
rb2 = new JButton("Card");
rb2.addActionListener(this);
rb2.setBorder(BorderFactory.createLineBorder(Color.black));
rb3 = new JButton("Cheque");
rb3.addActionListener(this);
rb3.setBorder(BorderFactory.createLineBorder(Color.black));
rb4 = new JButton("Voucher");
rb4.addActionListener(this);
rb4.setBorder(BorderFactory.createLineBorder(Color.black));
pan5.add(disCo);
pan5.add(but6);
pan5.add(rb1);
pan5.add(rb2);
pan5.add(rb3);
pan5.add(rb4);
//add the panels to the container
cont1.add(pan1);
cont1.add(pan4);
cont1.add(pan2);
cont1.add(pan3);
cont1.add(pan5);
chk1.setContentPane(cont1);
chk1.setVisible(true);
public void actionPerformed(ActionEvent e) {
int index = prodList.getSelectedIndex();
if(counter==0)
setTextMethod(index);
counter =1;
if(counter==1)
Object source = e.getActionCommand();
System.out.println("Action performed from: " + source);
if (source.toString() == "Buy") {
setTextMethod(index);
if(e.getSource()==but4)
list2.setText("?" + total);
public void setTextMethod(int index)
tArea2.setText(prods[index]
+ " ; Price is ?" + price[index]);
tf1.setText(""+code[index]);
class OfficeView {
private OfficeView off111;
private JFrame offMod1;
private JPanel pane1;
private JButton refill;
private Container cont11;
private Dimension screensize;
private JTextField tf11,tf12;
public OfficeView() {
drawOfficeGUI();
public void drawOfficeGUI() {
screensize = Toolkit.getDefaultToolkit().getScreenSize();
offMod1 = new JFrame("Office Control");
int frameWidth = 300;
int frameHeight = 250;
offMod1.setSize(frameWidth,frameHeight);
offMod1.setLocation(300,350);
offMod1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
cont11 = offMod1.getContentPane();
pane1 = new JPanel();
pane1.setBackground(Color.cyan);
refill = new JButton("Refill");
tf11 = new JTextField(25);
tf12 = new JTextField(25);
pane1.add(tf11);
pane1.add(refill);
pane1.add(tf12);
cont11.add(pane1);
offMod1.setContentPane(cont11);
offMod1.setVisible(true);
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Attachments:
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Message Edited by altenbach on 01-27-2009 04:02 PM
LabVIEW Champion . Do more with less code and in less time .
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I have the following type
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hi need help.. i need to add missing data for the array
YY-Year
MM-Month
DD-Date
mm-minutes
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Data 1YYMMDD mmss0
20.8 1090828 05050
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7.2 1090901 08400
the above array is the data where i need to insert data for data til 090831
as below
Data 1YYMMDD mmss0
20.8 1090828 05050
1.2 1090829 10150
0 1090830 0
0 1090831 0
7.2 1090901 08400
how to do this? and i need to check for every month is there data missing inbetween? Plz help
Solved!
Go to Solution.Yes. You will need to iterate through your array. Index out the current index and the index +1. Translate the text into dates and use the date functions to determine if a date is missing. If not, increase the index by 1 and repeat. If a date is missing, insert a row and set the date to be the last date +1. Repeat increasing your index which should make it the row you just added.
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Finding objects in arrays, adding to a temp array and replace old with temp
hi, I am currently modifying a hand analyser for a poker game. imagine a hand of a set of cards that can be from 5 up to whatever the game instructs, the analyser then has to match the hand to the rankings of best hands. so it has to map the hand to these possible besthands..
Royal Flush (A,K,Q,J,10 of same suit)
Straight flush(a running rank of same suit)
4 of a kind(er... 4 of the same rank)
full house(3 of a kind and a pair)
flush(all same suit)
straight(a running rank, A,2,3,4,5...,K)
2 pair(a pair and a pair)
1 pair(a pair)
and a high Card(the highest card in a hand)
the hand is sorted in ranks and suits to check for straights and flushes, and i have used a for loop to find any pairs, trips and quads for a hand. the problem i am having is the checking of two pairs. here is the loop i am using
Hand temp = new Hand();//creates a temporary hand to place the matching cards into. hand is an array of cards.
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sortbyRank();
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in an example, consider a 7 card hand being passed to this analyser..
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Royal Flush (A,K,Q,J,10 of same suit) Y Y
Straight flush(a running rank of same suit) Y Y
4 of a kind(er... 4 of the same rank) Y
full house(3 of a kind and a pair) 0.5 0.5
flush(all same suit) Y
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1 pair(a pair) Y
and a high Card(the highest card in a hand) -
Is there a better way to add int arrays together?
I'm working on a project that will add arrays of integer together...all element are nonnegative integers
For example
A = [0 1 2 3]
I need to find an algorithm to find 2A= A + A, 3A = A+A+A....., hA = A +...A ( h times)
For 2A, the result array will look like this
2A = [ 0 1 2 3 1 2 3 4 2 3 4 5 3 4 5 6]
Then using Array.sort(2A) i will have 2A= [ 0 1 1 2 2 2 3 3 3 3 4 4 4 5 5 6].
Lastly I will write another code to get rid of repetitions to get the desired array 2A = [ 0 1 2 3 4 5 6]
public static int[] hA(int[] a, int h){
// mon = null;
//mon = MonitorFactory.start("myFirstMonitor");
if (h==1) return a;
if (h==2){
int[] b = new int[(a.length)*(a.length)];
int count = 0;
int maxa = a.length,maxb=b.length;
for (int i = 0 ; i < maxa; i++)
for (int j=0 ; j <maxa; j++)
b[count]=a[i]+a[j];
count++;
return b;
else
return hA(a,h-1);
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is there any better way to do this?sorry for not defining it better
2A ={ a + a' | a,a' E A}
that means for A = { 0 1 3} , 2A ={ 0 1 2 3 4 6}
but to get to [ 0 1 2 3 4 6], i don't know of any better way to achieve it.
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Adding dynamically columns to array field
hello..
I am trying to create a window class with an ArrayField. The number of
DataField s in the ArrayField s are known at run time.
I created an nonWindow class (say Row )with an attribute FirstCol of type
Textdata.
I created a window class and using the window editor i created a datafield
with
name FirstCol which matches with the row class attribute.
I made datafield into an arrayfield with properties, name = arfield and
type = array of Row
I created a datafield and named to TemplateField (used as a template for
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On click of a button,I am able to add any number of DataField at run time
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<arfield>.children[2].Name='Column2';
U can assume that all fields that are going to be added at run time are used
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Please inform me if any one knows about this.
Waiting for responance..
Ramesh kumar reddy
[email protected]
PSI Data Syatems Ltd,
Bangalore,
INDIA.hello..
I am trying to create a window class with an ArrayField. The number of
DataField s in the ArrayField s are known at run time.
I created an nonWindow class (say Row )with an attribute FirstCol of type
Textdata.
I created a window class and using the window editor i created a datafield
with
name FirstCol which matches with the row class attribute.
I made datafield into an arrayfield with properties, name = arfield and
type = array of Row
I created a datafield and named to TemplateField (used as a template for
adding
columns )
On click of a button,I am able to add any number of DataField at run time
to the ArrayField by any of the following two ways successfully.
1) <TemplateField>.Parent = <arfield>;
2)<arfield>.AddColumn(2,<TemplateField>);
But i am failing both in adding data pragmatically to the added column and
retrive data from the newly added field even after the field by the folling
way
<arfield>.children[2].Name='Column2';
U can assume that all fields that are going to be added at run time are used
to store string data.
Please inform me if any one knows about this.
Waiting for responance..
Ramesh kumar reddy
[email protected]
PSI Data Syatems Ltd,
Bangalore,
INDIA. -
Adding data from an array to a table
How can i add information from an array to a table via JDBC? I have tried:
stmt.executeUpdate("INSERT INTO TEMP " + "VALUES (" + carData[0] + ", " + carData[1]);
but i get the error:
SQLException: [Microsoft][ODBC Microsoft Access Driver] Syntax error in INSERT INTO statement.
Also, can i only add data to some columns of a row and not all?If your TEMP table has only two columns and both of
them are of number
types, and your array contains only numeric types
(int[], long[] etc., it should not be a problem.
If your table contains more than two columns (and the
remaining columns are nullable) you need to list the
column names in the insert statement. Check your table
definition in the database and see SQL syntax for
insert.
If your columns are of string type, you need to
enclose the values in quotes (alternatively, use
PreparedStatement).I agree with this.
Here is the syntax that he was talking about
//if the values are numeric
stmt.executeUpdate("INSERT INTO TEMP(<COLUMN NAME>,<COLUMN NAME>) "
+ "VALUES(" + carData[0] + "," + carData[1] + ")";
//if the values are text
stmt.executeUpdate("INSERT INTO TEMP(<COLUMN NAME>,<COLUMN NAME>) "
+ "VALUES('" + carData[0] + "','" + carData[1] + "')";
Notice that the last part of your original query was incorrect. You forgot to put the bracket in quotes again. -
Adding a javascript img array file to picture in dreamweaver
Hi I am very new to Javascript but efficient in Dreamweaver. I use CS5 and a Macbook Pro. I'm trying to attach a Javascript file to a picture on my homepage. I wrote the code in text edit and saved it as an HTM file. When I open the file in Google Chrome, Safari or Firefox it works perfectly and the array displays all five pictures in a row. How do I attach this to dreamweaver? Also do I leave in the HTML tags in the javascript file? Here's how it looks when it plays right on a browser.
<HTML>
<HEAD>
<TITLE>Please Work</TITLE>
<SCRIPT>
var imgArray = new Array(5);
imgArray[0] = new Image;
imgArray[0].src = "awesome.jpg";
imgArray[1] = new Image;
imgArray[1].src = "dadinforest.jpg";
imgArray[2] = new Image;
imgArray[2].src = "neatplant.jpg";
imgArray[3] = new Image;
imgArray[3].src = "greenlake.jpg";
imgArray[4] = new Image;
imgArray[4].src = "cattail.jpg";
var index = 0;
function cycle()
document.banner.src = imgArray[index].src;
index++;
if (index == 5)
index = 0;
setTimeout("cycle()", 3000);
return;
</SCRIPT>
</HEAD>
<BODY onLoad="cycle()">
<CENTER>
<IMG NAME="banner" SRC="awesome.jpg">
</CENTER>
</BODY>
</HTML>Kitty Collins3 wrote:
I'm trying to attach a Javascript file to a picture on my homepage. I wrote the code in text edit and saved it as an HTM file. When I open the file in Google Chrome, Safari or Firefox it works perfectly and the array displays all five pictures in a row. How do I attach this to dreamweaver?
What you have created is an HTML file with a block of JavaScript in the <head>. It's not a JavaScript file, so there's nothing to attach. Just put the <script> block in the <head> of the page where you want to use it, and make sure your image is named "banner".
If you're just starting to learn JavaScript, you should be aware that JavaScript practices have changed radically in the past few years. Looking at the code you have written, it seems as though you are using an old book or an online script that was written many years ago. Several clues are the uppercase characters in the HTML tags, the <center> tag, the name attribute in the <img> tag, and the use of a string as the first argument to setTimeout().
JavaScript can be quite difficult to master, so make sure you learn from a reliable, modern source. A book that I found very helpful is DOM Scripting by Jeremy Keith. A new edition of the book was published this week (http://friendsofed.com/book.html?isbn=9781430233893). I'm sure there are other good resources, but you should avoid anything written earlier than 2005. -
Adding two 2-D Arrays to then save
I am trying to build two 2-D arrays to then save as a spreadsheet file. This process happens in while loop and I need to enable indexing when I feed the wire out. When I do this I use the build array fucntion but then it creates a 3-D array which I cannot save.
Ok. I've made an example that processes the whole file(s). Run the process file.vi, input a file pattern and select a directory of test files. Now you can click the process files button and it will produce files containing the results you wanted.
In the example I have not included the option of selecting just a segment of the files. The files are named after their origin file, the name is not put into the file itself...and finally I assume that the files always contain complete sets (you can initialize an array to hold the results instead of reusing the incoming array to avoid this dependancy...).
As you will see generating the result is quite simple, it's all done in the calculate VI. If you want to average across fil
es as well (not just data within one and the same file) it will need modifications though...If you want to be able to select a sub-section of the file the easiest way to do it is to do it prior to feeding the array to the calculate VI...the most effective though would be to modify the logic of the calculation VI slightly so that it can work on a selection directly.
If you sometimes need to be able to calculate the average and deviation of more values than the pairs, that's possible as well, but would require a modification of the calculation vi...
Mads
MTO
Attachments:
Process_files.zip 196 KB -
Problems with adding something to an array
I am trying to find out what I am doing wrong, I think I am way off...I am trying to take two different strings, compare the one to the other and see where the source is equal to the target at any place in the the source. Then I am to add that index to an array list, this is where I am having issues, after the AddArrayList() and putting the index of the match into the array. Please, I have been at this for a while...
this is what eclipse tells me...
Multiple markers at this line
- Syntax error on tokens, Expression expected instead
- Syntax error, insert "AssignmentOperator Expression" to complete Assignment
- Syntax error, insert ";" to complete Statement
- Syntax error on token "(", Expression expected after this token
- The type of the expression must be an array type but it resolved to
ArrayList<Integer>
*Find all indices in <tt>source</tt> that are the start of a complete*
match of <tt>target</tt>.
*@param source != null, source.length() > 0*
@param target != null, target.length() > 0
*@return an ArrayList that contains the indices in source that are the*
start of a complete match of target. The indices are stored in
*ascending order in the ArrayList.*
public static ArrayList<Integer> matches(String source, String target) {
// check preconditions
assert (source != null) && (source.length() > 0)
&& (target != null) && (target.length() > 0): "matches: violation of precondition";
ArrayList<Integer> result = new ArrayList<Integer>();
int sLength=source.length();
int tLength=target.length();
int count=0;
for(int x=0; x<sLength; x++ )
if ((tLength+x)<(sLength))
for (int y=0; y<tLength; y++)
if(target.charAt(x+y)==source.charAt(x+y))
if(y==tLength)
AddArrayList();
[ArrayList]<int>.add([x]);
count++;
return result;
private static void AddArrayList() {
ArrayList<Integer> result = new ArrayList<Integer>();
int index = 0;
result.add(index);Edited by: camdiggy on Sep 16, 2009 12:55 AMthe problem i encounter is on if(y==tLength)
public static ArrayList<Integer> matches(String source, String target) {
// check preconditions
assert (source != null) && (source.length() > 0)
&& (target != null) && (target.length() > 0): "matches: violation of precondition";
ArrayList<Integer> result = new ArrayList<Integer>();
int sLength=source.length();
int tLength=target.length();
int count=0;
for(int x=0; x<sLength; x++ )
if ((tLength+x)<(sLength))
for (int y=0; y<tLength; y++)
if(target.charAt(x+y)==source.charAt(x+y))
if(y==tLength)
AddArrayList();
[ArrayList]<int>.add([x]);
count++;
return result;
private static void AddArrayList() {
ArrayList<Integer> result = new ArrayList<Integer>();
int index = 0;
result.add(index);
Edited by: camdiggy on Sep 16, 2009 1:12 AM -
"For explaination , like this
1 1 1 1 1 1 1 ....... to 640
+2 2 2 2 2 2 2 .......
+3 3 3 3 3 3 3 .......
=6 6 6 6 6 6 6 ....... this is the final 1D array of summed elements."
Appreciate the sample VI's but I can't open them ( I have Labview 5.01 )Here is Mikael solution, expanded to include rows and ready to use as a subVI. Now all is needed is the polymorphic version
www.vartortech.com
Attachments:
Sum_rows_or_colums.vi 25 KB -
Adding pictures into an Array?
The following is a BlackJack Program my group and I made. So far, it seems to work and would likely net us a 100% when we hand it in. However, we wish to go that extra mile and add pictures, cards in particular, something that should obviously be in any card game! I've been fiddling around with ImageIcon and Image but I don't have a clue how to implement these or how to get them working correctly. Also, it would be best if the pictures could be loaded into an array, which would allow the program to function basically the same way with little editing.
//Import various Java utilites critical to program function
import java.awt.* ;
import java.awt.event.*;
import javax.swing.*;
import java.util.Random;
import java.lang.String;
public class BlackJackExtreme extends JFrame {
Random r = new Random(); //Assigning "r" to randomize
int valueA; //Numerical Value of player Cards
int valueB;
int valueC;
int valueD;
int valueE;
int valueAC; //Numerical Value of computer Cards
int valueBC;
int valueCC;
int valueDC;
int valueEC;
int playerVal; //Numerical total value of player cards
int playerVal2;
int playerValT;
int compVal; //Numerical total value of computer cards
int compVal2;
int compValT;
int counter; //A counter
String playVal; //String value for Numerical total value of player cards
String cVal; //String value for Numerical total value of computer cards
private JLabel YourCard; //Initializing a title label
private JLabel CCard; //Initializing a title label
private JLabel Total; //Initializing a title label
private JLabel CTotal; //Initializing a title label
private JLabel Win; //Initializing a Win label
private JLabel Lose; //Initializing a Lose label
private JLabel Bust; //Initializing a Bust label
private JButton Deal; //Initializing a button
private JButton Hit; //Initializing a button
private JButton Stand; //Initializing a button
private JButton Exit; //Initializing a button
private JTextArea TCompVal; //Initializing textbox for computer values
private JTextArea TotalVal;
private JLabel CardOne; //Initializing a label for player card 1
private JLabel CardTwo; //Initializing a label for player card 2
private JLabel CardThree; //Initializing a label for player card 3
private JLabel CardFour; //Initializing a label for player card 4
private JLabel CardFive; //Initializing a label for player card 5
private JLabel CCardOne; //Initializing a label for computer card 1
private JLabel CCardTwo; //Initializing a label for computer card 1
private JLabel CCardThree; //Initializing a label for computer card 1
private JLabel CCardFour; //Initializing a label for computer card 1
private JLabel CCardFive; //Initializing a label for computer card 1
private JPanel contentPane;
public BlackJackExtreme() {
super();
initializeComponent();
this.setVisible(true);
private void initializeComponent() {
YourCard = new JLabel("These are your cards");
CCard = new JLabel("These are the computers cards");
Total = new JLabel("Your total is: ");
CTotal = new JLabel("Computer total is: ");
TCompVal = new JTextArea(); //Box for computer values
TotalVal = new JTextArea(); //Box for player values
Win = new JLabel("You win!"); //Label for a Win
Lose = new JLabel("You lose!"); //Label for a Loss
Bust = new JLabel("You both Bust!"); //Label for a Bust
Deal = new JButton(); //Button
Hit = new JButton(); //Button
Stand = new JButton(); //Button
Exit = new JButton(); //Button
CardOne = new JLabel(""); //Label for Player Card 1
CardTwo = new JLabel(""); //Label for Player Card 2
CardThree = new JLabel(""); //Label for Player Card 3
CardFour = new JLabel(""); //Label for Player Card 4
CardFive = new JLabel(""); //Label for Player Card 5
CCardOne = new JLabel(""); //Label for Computer Card 1
CCardTwo = new JLabel(""); //Label for Computer Card 2
CCardThree = new JLabel(""); //Label for Computer Card 3
CCardFour = new JLabel(""); //Label for Computer Card 4
CCardFive = new JLabel(""); //Label for Computer Card 5
contentPane = (JPanel)this.getContentPane();
//Assigns function and ability to the various buttons
Deal.setText("Deal");
Deal.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Deal_actionPerformed(e);
Stand.setText("Stand");
Stand.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Stand_actionPerformed(e);
Exit.setText("Exit");
Exit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Exit_actionPerformed(e);
Hit.setText("Hit");
Hit.addActionListener(new ActionListener() {
public void actionPerformed(ActionEvent e) {
Hit_actionPerformed(e);
//Determines the arrangement of the various buttons, labels, and other GUI objects
contentPane.setLayout(null);
addComponent(contentPane, YourCard, 15,1,150,50);
addComponent(contentPane, CCard, 325,1,200,50);
addComponent(contentPane, Deal, 15,415,100,35);
addComponent(contentPane, Hit, 125,415,100,35);
addComponent(contentPane, Stand, 235 ,415,100,35);
addComponent(contentPane, Exit, 435 ,415,100,35);
addComponent(contentPane, CardOne, 25,35,50,50);
addComponent(contentPane, CardTwo, 110,35,50,50);
addComponent(contentPane, CardThree, 25,120,50,50);
addComponent(contentPane, CardFour, 110,120,50,50);
addComponent(contentPane, CardFive, 65,200,50,50);
addComponent(contentPane, CCardOne, 350,35,50,50);
addComponent(contentPane, CCardTwo, 450,35,50,50);
addComponent(contentPane, CCardThree, 350,120,50,50);
addComponent(contentPane, CCardFour, 450,120,50,50);
addComponent(contentPane, CCardFive, 400,200,50,50);
addComponent(contentPane, Win, 300,300,70,50);
addComponent(contentPane, Lose, 300,300,70,50);
addComponent(contentPane, Bust, 300,300,100,50);
addComponent(contentPane, Total, 100,350,150,50);
addComponent(contentPane, TotalVal, 200,365,25,25);
addComponent(contentPane, CTotal, 300,365,150,25);
addComponent(contentPane, TCompVal, 425,365,25,25);
//Sets the "outcome" labels invisible on program execution
Win.setVisible(false);
Lose.setVisible(false);
Bust.setVisible(false);
//Determines size of program window
this.setTitle("BlackJack");
this.setLocation(new Point(220,185));
this.setSize(new Dimension(555,500));
this.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
private void addComponent(Container container, Component c, int x, int y, int width, int height){
c.setBounds(x,y,width,height);
container.add(c);
//The DEAL button
public void Deal_actionPerformed(ActionEvent e) {
//Correctly resets the display after first round of use
Hit.setVisible(true);
Stand.setVisible(true);
Win.setVisible(false);
Lose.setVisible(false);
Bust.setVisible(false);
CardThree.setVisible(false);
CardFour.setVisible(false);
CardFive.setVisible(false);
TotalVal.setText("");
TCompVal.setText("");
//Card Array - Values assigned to cards
String[] cardnames = new String[15];
cardnames[0] = "Error";
cardnames[1] = "Error";
cardnames[2] = "Two";
cardnames[3] = "Three";
cardnames[4] = "Four";
cardnames[5] = "Five";
cardnames[6] = "Six";
cardnames[7] = "Seven";
cardnames[8] = "Eight";
cardnames[9] = "Nine";
cardnames[10] = "Ten";
cardnames[11] = "Jack";
cardnames[12] = "Queen";
cardnames[13] = "King";
cardnames[14] = "Ace";
//Randomize Card Values
valueA = r.nextInt(13)+2;
valueB = r.nextInt(13)+2;
valueAC = r.nextInt(13)+2;
valueBC = r.nextInt(13)+2;
//Displays Card
CardOne.setText(cardnames[valueA]);
CardTwo.setText(cardnames[valueB]);
CCardOne.setText(cardnames[valueAC]);
CCardTwo.setText(cardnames[valueBC]);
//Value Correction for Player Cards
if (valueA == 11 || valueA == 12 || valueA == 13) {
valueA = 10; }
if (valueA ==14){
valueA = 11; }
if (valueB == 11 || valueB == 12 || valueB == 13) {
valueB = 10; }
if (valueB ==14){
valueB = 11; }
//Value Correction for Computer Cards
if (valueAC == 11 || valueAC == 12 || valueAC == 13) {
valueAC = 10; }
if (valueAC ==14){
valueAC = 11; }
if (valueBC == 11 || valueBC == 12 || valueBC == 13) {
valueBC = 10; }
if (valueBC ==14){
valueBC = 11; }
//Computer Hand Value Calculations
compVal = valueAC + valueBC;
//Assigns addition cards to computer
if (compVal <= 15) {
valueCC = r.nextInt(13)+2;
CCardThree.setText(cardnames[valueCC]);
if (valueCC == 11 || valueCC == 12 || valueCC == 13) {
valueCC = 10; }
if (valueCC ==14){
valueCC = 11; }
compVal += valueCC; }
//Changes the Integer value of player and computer hands into a String value
cVal = Integer.toString(compVal);
playerVal = valueA + valueB;
playVal = Integer.toString(playerVal);
TotalVal.setText(playVal);
Deal.setVisible(false);
CCardOne.setVisible(false);
//The HIT button
public void Hit_actionPerformed(ActionEvent e) {
//A counter that changes the specific function of the HIT button when it is pressed at different times
counter++;
if (counter ==3){
Hit.setVisible(false);
//Card Array - Values assigned to cards
String[] cardnames = new String[15];
cardnames[0] = "Error";
cardnames[1] = "Error";
cardnames[2] = "Two";
cardnames[3] = "Three";
cardnames[4] = "Four";
cardnames[5] = "Five";
cardnames[6] = "Six";
cardnames[7] = "Seven";
cardnames[8] = "Eight";
cardnames[9] = "Nine";
cardnames[10] = "Ten";
cardnames[11] = "Jack";
cardnames[12] = "Queen";
cardnames[13] = "King";
cardnames[14] = "Ace";
//Randomize Card Values
valueC = r.nextInt(13)+2;
valueD= r.nextInt(13)+2;
valueE = r.nextInt(13)+2;
//Determines which card is being hit, as well as randomizing a value to that location
if (counter == 1) {
CardThree.setText(cardnames[valueC]);
playerVal2 = 0 + (valueC);
CardThree.setVisible(true); }
if (counter == 2) {
CardFour.setText(cardnames[valueD]);
playerVal2 += (valueD) ;
CardFour.setVisible(true); }
if (counter == 3) {
CardFive.setText(cardnames[valueE]);
playerVal2 += (valueE);
CardFive.setVisible(true); }
//Value corrections for player cards
if (valueC == 11 || valueC == 12 || valueC == 13) {
valueC = 10; }
if (valueC ==14){
valueC = 11; }
if (valueD == 11 || valueD == 12 || valueD == 13) {
valueD = 10; }
if (valueD ==14){
valueD = 11; }
if (valueE == 11 || valueE == 12 || valueE == 13) {
valueE = 10; }
if (valueE ==14){
valueE = 11;
//Changes the Integer value of player and computer hands into a String value
playerValT = playerVal + playerVal2;
playVal = Integer.toString(playerValT);
TotalVal.setText(playVal);
//The STAND button
private void Stand_actionPerformed(ActionEvent e) {
//Correctly assigns player value if HIT button is never pressed
if (counter == 0){
playerValT = playerVal; }
//Reveals the unknown computer card
CCardOne.setVisible(true);
//Determines the winner and loser
if (playerValT <= 21 && compVal < playerValT) {
Win.setVisible(true); }
else if (playerValT <= 21 && compVal > 21) {
Win.setVisible(true); }
else if (playerValT >21 && compVal > 21) {
Bust.setVisible(true); }
else if (compVal <= 21 && playerValT < compVal){
Lose.setVisible(true);}
else if (compVal <= 21 && playerValT > 21) {
Lose.setVisible(true); }
else if (compVal == playerValT){
Lose.setVisible(true); }
//Configures program and display for next use
Deal.setVisible(true);
Stand.setVisible(false);
Hit.setVisible(false);
counter = 0;
TCompVal.setText(cVal);
//The EXIT button
private void Exit_actionPerformed(ActionEvent e) {
System.exit ( 0 );
public static void main(String[]args) {
JFrame.setDefaultLookAndFeelDecorated(true);
JDialog.setDefaultLookAndFeelDecorated(true);
new BlackJackExtreme();
Instead of having a JLabel with "Ace", "Eight", etc appear, how would one make pictures appear? How does one do this with an array?
Edited by: Funkdmonkey on Jan 1, 2008 7:45 PMI guess an array or perhaps better a hashmap where the image is the value and the card (a great place for an enum!) is the key would work nicely. Oh, and you can find a great public domain set of card images here:
http://www.eludication.org/playingcards.html
Finally, your code appears to be suffering from the God-class anti-pattern. You would do well to refactor that beast.
Edited by: Encephalopathic on Jan 1, 2008 8:09 PM
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