Help needed on a TicTacToe java program
I am very new to java and our teacher has given us a program
that i am having quite a bit of trouble with. I was wondering if anyone could help me out.
This is the program which i have bolded.
{You will write a Java class to play the TicTacToe game. This program will have at least two data members, one for the status of the board and one to keep track of whose turn it is. All data members must be private. You will create a user interface that allows client code to play the game.
The user interface must include:
� Boolean xPlay(int num) which allows x to play in the square labeled by num. This function will return true if that play caused the game to end and false otherwise.
� Boolean oPlay(int num) which allows o to play in the square labeled by num. This function will return true if that play caused the game to end and false otherwise.
� Boolean isEmpty(int num) will check to see if the square labeled by num is empty.
� Void display() which displays the current game status to the screen.
� Char whoWon() which will return X, O, or C depending on the outcome of the game.
� You must not allow the same player to play twice in a row. Should the client code attempt to, xPlay or oPlay should print an error and do nothing else.
� Also calling whoWon when the game is not over should produce an error message and return a character other than X, O, or C.
� Client code for the moment is up to you. Assume you have two human players that can enter the number of the square in which they want to play.
Verifying user input WILL be done by the client code.}
Hi,
This forum is exclusively for discussions related to Sun Java Studio Creator. Please post your question at the Java Programming forum. The URL to this forum is:
http://forum.java.sun.com/forum.jspa?forumID=31
Cheers
Giri
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HELP NEeded in creating tis java program
create a prompter appliation that prompts the user for two numbers. The first number is a minimum value, and the second is a maximum value. Prompter then prompts the user for a number between the minimum and maximum numbers entered. The user should be continuously prompted until a number within the range is entered. Be sure to include the minimum and maximum numbers in prompt.
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what do do??so can some 1 help me"Help" as in provide workable code? They might - you did all right in your last
thread. Personally, though, I doubt you're much helped by this.
Start by reading the description of what your code must do. Make sure you
understand the description - perhaps by explaining it in your own words to someone
else. If they don't understand then you don't understand: not in any sense
that matters.
Then proceed to write some code. The first sentence of the description you posted
makes a good starting point. Write some code that compiles and does this.
Make sure you understand what each line does before moving on.
If you get stuck post some code and an actual question. If there is a compiler error,
copy paste and post the actual error you can't understand and say which line it refers
to. If your code compiles but has unwanted, unexpected or mysterious results,
say what it does and what you were expecting, or wanting.
Hope that helps.
(My apologies if your native language is not English, but really. Use a
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post aloud or, as above, to someone else who can tell you if it makes no sense.) -
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Do you mean call a bat file that it is a Java program from C#? If so, there is an article talking about it.
If that's not what you're trying to do, please be more specific about what you're trying to do.
http://www.c-sharpcorner.com/UploadFile/maheswararao/CallingJavaProgramfromCS12062005233321PM/CallingJavaProgramfromCS.aspx
Now the next issue is pass some parameters from C#.
The above article tells using Process.Start() method to call java program. Also in this class, you could specify them all in the
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var p = new Process();
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For more detailed information, please refer to
C# Passing Multiple Arguments to BAT File
Note: This response contains a reference to a third party World Wide Web site. Microsoft is providing this information as a convenience to you. Microsoft does not control
these sites and has not tested any software or information found on these sites;
Therefore, Microsoft cannot make any representations regarding the quality, safety, or suitability of any software or information
found there. There are inherent dangers in the use of any software found on the Internet, and Microsoft cautions you to make sure that you completely understand the risk before retrieving any software from the Internet.
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Help needed in understanding the Java code.
Hi All,
I have recently started learning the Java language. I came across this example and had a problem in understanding the output of the program. I could follow that if the continue statement is present in the below program the output is "Found 9 p's in the string" . But if the continue statement is removed I could not understand why the output would be "Found 35 p's in the string" .Is it because of the spaces and characters other than p... (eter ier icked a eck of ickled eers)
Example-----------------------
The continue statement skips the current iteration of a for, while , or do-while loop. The unlabeled form skips to the end of the innermost loop's body and evaluates the boolean expression that controls the loop. The following program, ContinueDemo , steps through a String, counting the occurences of the letter "p". If the current character is not a p, the continue statement skips the rest of the loop and proceeds to the next character. If it is a "p", the program increments the letter count.
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public static void main(String[] args) {
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To see this effect more clearly, try removing the continue statement and recompiling. When you run the program again, the count will be wrong, saying that it found 35 p's instead of 9.The answer is already in your example - "The unlabeled form skips to the end of the innermost loop's body and evaluates the boolean expression that controls the loop."
It unloads the current loop iteration when condition is matching. Loop is again starting from boolean expression inside loop declaration.
Java Programming - java forum -
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implementing a board game in java. I've started
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I need someone to look
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Here are my 4 classes of code........
* Dictionary.java
* Created on November 4, 2007, 10:53 PM
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* @author Denis
import javax.swing.JOptionPane;
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* Created on November 10, 2007, 11:50 AM
* @author Denis
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while(done!=true)
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String toAdd = JOptionPane.showInputDialog("Please Key in the Word a dash and the definition.");
add(toAdd);
break;
case 2:
String toDelete = JOptionPane.showInputDialog("What would you like to remove?");
remove(toDelete);
break;
case 3:
for(Word e: list)
System.out.println(e);
break;
case 4:
System.out.println("Transaction complete.");
done = true;
break;
default:
done = true;
break;
}//end switch
}//end while
}//end Dictionary
}//end main
import java.util.Iterator;
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* Created on November 4, 2007, 10:40 PM
*A class WordList that creates and maintains a linked list of words and their meanings in lexicographical order.
* @author Denis*/
public class WordList{
WordNode list;
//Iterator<WordList> i = list.iterator();
/*public void main(String [] args)
while(i.hasNext())
WordNode w = i.next();
String s = w.word.getWord();
void WordList() {
list = null;
void add(Word b)
WordNode temp = new WordNode(b);
WordNode current,previous = null;
boolean found = false;
try{
if(list == null)
list=temp;
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current = list;
while(current != null && !found)
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current=current.next;
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if(previous==null)
list=temp;
else
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}//end try
catch (NullPointerException e)
System.out.println("Catch at line 46");
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* Created on November 4, 2007, 10:40 PM
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* @author Denis
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object = x;
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Word getWord()
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WordNode getNode()
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* Created on November 4, 2007, 10:39 PM
* A class Word that holds the name of a word and its meaning.
* @author Denis
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private String word = " ";
/** Creates a new instance of Word with the definition*/
public Word(String w) {
word = w;
String getWord(){
return word;
}zoemayne wrote:
java:26: cannot find symbol
symbol : method add(java.lang.String)
location: class Dictionary
add(toAdd);this is in the dictionary class
generic messageThat's because there is no add(...) method in your Dictionary class: the add(...) method is in your WordList class.
To answer your next question "+how do I add things to my list then?+": Well, you need to create an instance of your WordList class and call the add(...) method on that instance.
Here's an example of instantiating an object and invoking a method on that instance:
Integer i = new Integer(6); // create an instance of Integer
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Regards
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Who can help me :)--a problem with java program(reset problem in java )
I do not know how to make the button reset,my program only could reset diagram but button.If any one who could help me to solve this problem.The problem is When the reset button is pressed, the image should immediately revert to the black square, and the 4 widgets listed above should show values that
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import java.awt.*;
import java.awt.event.*;
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// anonymous inner class to handle resetButton events
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// to decide if show the shape
myPanel.setShowStatus(true);
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myPanel.setShape(shape);
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myPanel.setFill(true);
// call DrawPanel method draw
myPanel.draw();
myPanel.setFill(true);
myPanel.setForeground(Color.black);
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);// end call to addActionListener
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colorComboBox = new JComboBox(colorNames);
colorComboBox.setMaximumRowCount(5);
colorComboBox.addItemListener(
// anonymous inner class to handle colorComboBox events
new ItemListener() {
// select shape's color
public void itemStateChanged(ItemEvent event) {
if(event.getStateChange() == ItemEvent.SELECTED)
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myPanel.setForeground(colors[colorComboBox.getSelectedIndex()]);
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circleButton = new JRadioButton ("Circle", false);
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radioGroup.add(circleButton);
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public void itemStateChanged (ItemEvent event) {
if (isShow==true) {
shape = DrawPanel.SQUARE;
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new ItemListener() {
public void itemStateChanged (ItemEvent event) {
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shape = DrawPanel.CIRCLE;
myPanel.setShape(shape);
myPanel.draw();
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// set up sizeSlider
// register an event handler for sizeSlider's ChangeEvent
sizeSlider = new JSlider(SwingConstants.HORIZONTAL, 0, 300, 100);
sizeSlider.setMajorTickSpacing(10);
sizeSlider.setPaintTicks(true);
sizeSlider.addChangeListener(
// anonymous inner class to handle sizeSlider events
new ChangeListener() {
public void stateChanged(ChangeEvent event) {
myPanel.setShapeSize(sizeSlider.getValue());
myPanel.draw();
}// end anonymous inner class
);// end call to addChangeListener
// set up panel containing buttons
buttonPanel = new JPanel();
buttonPanel.setLayout(new GridLayout(4, 1, 0, 50));
buttonPanel.add(resetButton);
buttonPanel.add(filledButton);
buttonPanel.add(colorComboBox);
JPanel radioButtonPanel = new JPanel();
radioButtonPanel.setLayout(new GridLayout(2, 1, 0, 20));
radioButtonPanel.add(squareButton);
radioButtonPanel.add(circleButton);
buttonPanel.add(radioButtonPanel);
// attach button panel & draw panel to content panel
Container container = getContentPane();
container.setLayout(new BorderLayout(10,10));
container.add(myPanel, BorderLayout.CENTER);
container.add(buttonPanel, BorderLayout.EAST);
container.add(sizeSlider, BorderLayout.SOUTH);
setSize(500, 400);
setVisible(true);
public static void main(String args[]) {
shapes application = new shapes();
application.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
}second one is drawpanel:
import java.awt.*;
import javax.swing.*;
public class DrawPanel extends JPanel {
public final static int CIRCLE = 1, SQUARE = 2;
private int shape;
private boolean fill;
private boolean showStatus;
private int shapeSize = 100;
private Color foreground;
// draw a specified shape
public void paintComponent (Graphics g){
super.paintComponent(g);
// find center
int x=(getSize().width-shapeSize)/2;
int y=(getSize().height-shapeSize)/2;
if (shape == CIRCLE) {
if (fill == true){
g.setColor(foreground);
g.fillOval(x, y, shapeSize, shapeSize);
else{
g.setColor(foreground);
g.drawOval(x, y, shapeSize, shapeSize);
else if (shape == SQUARE){
if (fill == true){
g.setColor(foreground);
g.fillRect(x, y, shapeSize, shapeSize);
else{
g.setColor(foreground);
g.drawRect(x, y, shapeSize, shapeSize);
// set showStatus value
public void setShowStatus (boolean s) {
showStatus = s;
// return showstatus value
public boolean getShowStatus () {
return showStatus;
// set fill value
public void setFill(boolean isFill) {
fill = isFill;
// set shape value
public void setShape(int shapeToDraw) {
shape = shapeToDraw;
// set shapeSize value
public void setShapeSize(int newShapeSize) {
shapeSize = newShapeSize;
// set foreground value
public void setForeground(Color newColor) {
foreground = newColor;
// repaint DrawPanel
public void draw (){
if(showStatus == true)
repaint();
}If any kind people who can help me.
many thanks to you!4 widgets???
maybe this is what you mean.
add this inside your actionPerformed method for the reset action
squareButton.setSelected(true);
colorComboBox.setSelectedIndex(0);
if not be more clear in your post. -
Doing a Java project, writing a Quiz program basically got multiple screens and using a Buffered reader which loads a txt folder, at the moment it reads the questions and allows u to skip questions on all 4 buttons, i know need it to count up the correct answers and have a final score etc.
import java.awt.*;
import java.awt.event.*;
import java.io.*;
import java.util.StringTokenizer;
import javax.swing.*;
public class Main extends JFrame implements ActionListener
private JButton button, buttonAns1, buttonAns2, buttonAns3, buttonAns4;
private JPanel panel, panelAns, panelAns1, panelAns2, panelAns3, panelAns4;
private JLabel labelTitle, labelName, labelQ1;
BufferedReader inFile;
boolean start =true;
String answer = null;
int noOfQuestions = 0;
Main myMain ;
MusicQuiz myMusicQuiz;
Levels myLevels;
public Main()
String name;
name = JOptionPane.showInputDialog(null,"Please enter your Name!");
JOptionPane.showMessageDialog(null,"Welcome " + name);
setDefaultCloseOperation(EXIT_ON_CLOSE);
Container c= getContentPane();
setSize(700,600);
panel = new JPanel();
panel.setLayout(new GridLayout(5,1));
panel.setSize(600,400);
c.add(panel);
labelTitle = new JLabel("MTV's Quiz Star");
labelTitle.setHorizontalAlignment(JLabel.CENTER);
panel.add(labelTitle);
labelTitle.setFont(new Font("Tahoma",Font.BOLD,48));
labelTitle.setForeground(Color.orange);
labelName = new JLabel("User: "+ name);
labelName.setHorizontalAlignment(JLabel.CENTER);
panel.add(labelName);
labelName.setFont(new Font("Tahoma",Font.BOLD,14));
labelName.setForeground(Color.darkGray);
labelQ1 = new JLabel("");
labelQ1.setHorizontalAlignment(JLabel.CENTER);
panel.add(labelQ1);
labelQ1.setFont(new Font("Tahoma",Font.BOLD,24));
labelQ1.setForeground(Color.darkGray);
panelAns = new JPanel();
panelAns.setLayout(new GridLayout(2,2));
panelAns.setSize(600,400);
panel.add(panelAns);
buttonAns1 = new JButton("");
buttonAns1.addActionListener(this);
buttonAns1.setForeground(Color.darkGray);
panelAns.add(buttonAns1);
buttonAns2 = new JButton("");
buttonAns2.addActionListener(this);
buttonAns2.setForeground(Color.darkGray);
panelAns.add(buttonAns2);
buttonAns3 = new JButton("");
buttonAns3.addActionListener(this);
buttonAns3.setForeground(Color.darkGray);
panelAns.add(buttonAns3);
buttonAns4 = new JButton("");
buttonAns4.addActionListener(this);
buttonAns4.setForeground(Color.darkGray);
panelAns.add(buttonAns4);
setSize(600,400);
show();
countQuestions();
readQuestions();
public static void main(String[] args)
Main myMain = new Main();
public void countQuestions()
try
String line;
inFile = new BufferedReader(new FileReader("Questions.txt"));
try
while ((line = inFile.readLine()) != null)
noOfQuestions++;
inFile.close();
catch(Exception e)
catch (FileNotFoundException e)
System.out.println("File - Questions.txt - File Not Found");
private void readQuestions()
int number = (int)(Math.random() * noOfQuestions);
if(start == true)
start = false;
try
inFile = new BufferedReader(new FileReader("Questions.txt"));
String line = null;
for(int loop =0;loop < number;loop++)
line= inFile.readLine();
StringTokenizer parts = new StringTokenizer(line,"|");
labelQ1.setText(parts.nextToken());
buttonAns1.setText(parts.nextToken());
buttonAns2.setText(parts.nextToken());
buttonAns3.setText(parts.nextToken());
buttonAns4.setText(parts.nextToken());
answer = parts.nextToken();
inFile.close();
catch (Exception e)
/* (non-Javadoc)
* @see java.awt.event.ActionListeneractionPerformed(java.awt.event.ActionEvent)
public void actionPerformed(ActionEvent arg0)
if (arg0.getSource()==myMusicQuiz)
if(myMusicQuiz==null)
myMusicQuiz= new MusicQuiz();
else show();
if (arg0.getSource()==myLevels)
if(myLevels==null)
myLevels= new Levels();
else show();
if(arg0.getSource() == buttonAns1)
readQuestions();
if(arg0.getSource() == buttonAns2)
readQuestions();
if(arg0.getSource() == buttonAns3)
readQuestions();
if(arg0.getSource() ==buttonAns4)
readQuestions();
}In case you're wondering if someone is going to do it for you, I'd guess No. So if you're still sitting there on your hands you might want to do something about it instead.
-
Help needed on to write a program on connecting to data source
I would to program a class that connect to data source without any manually configure.
Is there other way that i could use intsead of using
db = DriverManager.getConnection("jdbc:odbc:Driver={SQL Server};Server=MyServerName;Database=MyDataBase","","");
My project requires me to use JDBC-ODBC Bridge on connecting to data source on client machine
Is there any other way?Oh, oh,
why???
It's so simple to do a JDBC connection using the same connection params, which you use for your VB program's connnection.
If your VB prog uses a system or user DSN configured via control panel, then use the same DSN in your Java prog.
Dear karentan,
you have just the same question now active in 4 or 5 different topics. And I and others have not been able to understand what really is your problem, I fear.
Would you please do two things:
1) Start a new topic (yes, another one!) and tell us there what exactly is your problem. What do you want to do?
Not: is it possible ... but: I want ...
2) Go to all the other topics you spreaded here and post the link of your new topic there, so that the poor people who try to answer your 5 (always the same) questions know that they can spare their time.
Please, hold this forum useful!
And let us come to the point that you are helped and we are glad!
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