SetVaule in another class.

Hi. Have a question on how to reload a table in another class. Show with an example.
public class One {
public void sendValue(){
Two two = new Two();
two.upDateModel().model.setRowCount(0);
public class Tow {
public void upDateModel() {
DefaultTableModel model = new DefaultTableModel(row,col);
}This is how my brain wants to do. But with less good result. any assistance appreciated.

Honestly, please revisit [Sun's Java Tutorial|http://java.sun.com/docs/books/tutorial/java/index.html] , you are struggling with basic language concepts like methods, parameters and method invocation. Do yourself a favour and review those concepts before you attempt to use the more advanced Swing API.
Regarding your problem at hand, what about:
class Two {
public void upDateModel(int row, int column) {
DefaultTableModel model = new DefaultTableModel(row, column);
class One {
two.upDateModel(0, 0);
}

Similar Messages

Get the values of hashmap in another class

Hi All,
i already posted this topic yesterday..But i did not get any helpful response..Kindly help me because I am new to java and I need some help regarding hashmap..
I have a one value object java class which name is HashTestingVO.java
*******************************************INPUT OF HashTestingVO.java***************************************
public class HashTestingVO extends PersistentVO implements ILegalWorkFlowACLVO {
public final static HashMap legalReviewPieceRelatedACLMap = new HashMap();
legalReviewPieceRelatedACLMap.put("Futhure Path Check","ereview_acl_piece_related_cat1");
legalReviewPieceRelatedACLMap.put("Send to Legal Review","ereview_acl_piece_related_cat1");
legalReviewPieceRelatedACLMap.put("Review Precondition","ereview_acl_piece_related_cat1");
Now i want to get the Hash Map values of this in another class called Testing.java class
Ex: i need the value like this in Testing.java
HashTestingVO obj=new HashTestingVO();
obj.get(Futhure Path Check) -----------> I want to get the value of key1
Public means you can access it another class..
But Static means within the class we will use it...

already posted this topic yesterday..But i did not get any helpful response..Kindly help me because I am new to java and I need some help regarding hashmap..I thing Exposing your dataStructure to any other class is not the right practise.
You can make the Hashmap object private and nonstatic and provide a getter method in this class to get the value corresponding to any particular key.
public Object getValue(String key)
return egalReviewPieceRelatedACLMap.get(key);
}

Getting values from a JTextField on a JPanel in another class

I have created a class which extends a JPanel and added a JTextField to it, which has an addActionListener for getting the values typed in the JTextField. I want to use the class created in another class and retrieve the values typed in the JTextField, so how do i go about that? I have the class created below so the problem is how to retrieve content of val[val] in another class?
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class TextFieldChooser extends JPanel{
int val;
public TextFieldChooser(String str){
    val = 0;
    setLayout(new FlowLayout());
    add(new JLabel(str));
    JTextField txtf = new JTextField(5);
    txtf.addActionListener(new TextFieldListener());
    add(txtf);
}//end constructor
private class TextFieldListener implements ActionListener{
    public void actionPerformed(ActionEvent e) {
       val = Integer.parseInt(e.getActionCommand());
}//end text field listener
public int getValue(){
    return val;
}//class

The problem is which listener can be programmed to handle the event performed on the class TextFieldChooser in the other class?
I have created a class which extends a JPanel and
added a JTextField to it, which has an
addActionListener for getting the values typed in the
JTextField. I want to use the class created in
another class and retrieve the values typed in the
JTextField, so how do i go about that? I have the
class created below so the problem is how to retrieve
content of val[val] in another class?
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
public class TextFieldChooser extends JPanel{
int val;
public TextFieldChooser(String str){
val = 0;
setLayout(new FlowLayout());
add(new JLabel(str));
JTextField txtf = new JTextField(5);
txtf.addActionListener(new TextFieldListener());
add(txtf);
}//end constructor
private class TextFieldListener implements
s ActionListener{
public void actionPerformed(ActionEvent e) {
val = Integer.parseInt(e.getActionCommand());
}//end text field listener
public int getValue(){
return val;
}//class

Problem getting arraylist from another class

I am trying to call information about an arraylist from another class. I am using this code to call the size of an arraylist:
import java.io.*;
public class Test
    public static void main(String argv[]) throws IOException
Echo03 thing = new Echo03();
int y=thing.value();
System.out.println(y);
Echo03 thing2 = new Echo03();
int x=thing2.percent.size();
System.out.println(x);
}from another file which starts like this:
public class Echo03 extends DefaultHandler
static ArrayList<String> percent = new ArrayList<String>();
static ArrayList<String> text = new ArrayList<String>();
int a;
public int value(){
     return percent.size();
public static void main(String argv[]) throws IOException
    {The second file is based on an example piece of code from the Java website. I havent posted the whole thing, but if it is relevant then please ask.
Anyway when I run Echo03 by itself, the arraylist has a size of 2. But when I run it from the Test file, it says a size of 0. Is this because the data is not being transferred between the classes? Or is the Echo03 program not executing (and hence the arraylist is not filling up)?
How can I fix this? I have tried 2 ways of calling the data (As seen in my Test file). Neither work.

I didnt post the full bit of the code for the second one. Here it is:
import java.io.*;
import org.xml.sax.*;
import org.xml.sax.helpers.DefaultHandler;
import javax.xml.parsers.SAXParserFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.parsers.SAXParser;
import java.util.ArrayList;
import java.awt.*;
import javax.swing.*;
public class Echo03 extends DefaultHandler
static ArrayList<String> percent = new ArrayList<String>();
static ArrayList<String> text = new ArrayList<String>();
int a;
public static void main(String argv[]) throws IOException
        if (argv.length != 1) {
            System.err.println("Usage: cmd filename");
            System.exit(1);
        // Use an instance of ourselves as the SAX event handler
        DefaultHandler handler = new Echo03();
        // Use the default (non-validating) parser
        SAXParserFactory factory = SAXParserFactory.newInstance();
        try {
            // Set up output stream
   out = new OutputStreamWriter(System.out, "UTF8");
            // Parse the input
            SAXParser saxParser = factory.newSAXParser();
            saxParser.parse( new File(argv[0]), handler);
for (int b=0; b<percent.size();b++){
     System.out.println(percent.get(b+1));
        } catch (Throwable t) {
        System.exit(0);
    static private Writer out;
    public void startElement(String namespaceURI,
                             String lName, // local name
                             String qName, // qualified name
                             Attributes attrs)
    throws SAXException
        if (attrs != null) {
StringBuffer sb = new StringBuffer (250);
for (int i = 0; i < attrs.getLength(); i++) {
                nl();
                emit(attrs.getValue(i));
          sb.append (attrs.getValue(i));
String sf = sb.toString ();
percent.add(sf);
System.out.println(" String: "+sf); a++;
    public void characters(char buf[], int offset, int len)
    throws SAXException
         emit(" ");
        String s = new String(buf, offset, len);
        if (!s.trim().equals("")) {text.add(s); emit(s);}
//===========================================================
    // Utility Methods ...
    //===========================================================
    // Wrap I/O exceptions in SAX exceptions, to
    // suit handler signature requirements
    private void emit(String s)
    throws SAXException
        try {
            out.write(s);
            out.flush();
        } catch (IOException e) {
            throw new SAXException("I/O error", e);
    // Start a new line
    private void nl()
    throws SAXException
        String lineEnd = System.getProperty("line.separator");
        try {
            out.write(lineEnd);
        } catch (IOException e) {
            throw new SAXException("I/O error", e);
}

Easy question: Give access to a class in another class.

Stupid title, but dont know how to express myself :P Sorry for that.
To the problem. Never had this problem before, and I know its a really easy solution to this.
I have my Main class, which creates a MyView class. Inside this class, I make to new classes(or instances of classes i've already made), MyPanel and MyToolsPanel. Now I want to add buttons inside the MyToolsPanel class, and add actionlisteners to these buttons inside MyPanel.
What I'v always done to grant access to MyToolsPanel inside of MyTools, is to simply add a
//this is the MyPanel class
MyToolsPanel mtp;
public void setMtp(MyToolsPanel mtp){
this.mtp = mtp;
}and then in the MyView class which create these to classes, I put a command: mp.setMtp(mtp);
When I run this it doesnt work.. Why? Should be easy to solve, since it obviously is a stupid problem that I just dont see. :P Feeling kind of stupid to ask this question, but this is how it is...
EDIT: I might have to implement actionListener inside the MyToolsPanel class?
Edited by: Stianbl on Sep 28, 2008 4:59 PM

one way:
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JPanel;
import javax.swing.JTextField;
* Subclasses JPanel, can send text out via the getText() method
* can hook into button press via addActionListener
* @author Pete
public class PanelCommSender extends JPanel
private JTextField sendingField = new JTextField(12);
private JButton sendButton = new JButton("Send");
public PanelCommSender()
    add(sendingField);
    add(sendButton);
public void addActionListener(ActionListener al)
    // attach this listener to the button
    sendButton.addActionListener(al);
   * call this to get the text currently in the textfield
   * @return String text
public String getText()
    return sendingField.getText();
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
* Subclasses JPanel, receives text from another class
* @author Pete
public class PanelCommReceiver extends JPanel
private JTextField showResultsField = new JTextField(12);
public PanelCommReceiver()
    showResultsField.setEditable(false);
    add(new JLabel("Results from other panel: "));
    add(showResultsField);
   * call this to set text of textField
   * @param text
public void setText(String text)
    showResultsField.setText(text);
import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JDialog;
import javax.swing.JFrame;
public class PanelCommControl
private static void createAndShowUI()
    // create new instances of the receiving and sending panels:
    final PanelCommReceiver receivePanel = new PanelCommReceiver();
    final PanelCommSender sendPanel = new PanelCommSender();
    // let the communicate w/ each other
    sendPanel.addActionListener(new ActionListener()
      public void actionPerformed(ActionEvent e)
        receivePanel.setText(sendPanel.getText());
    // place the receiving JPanel into a JFrame
    JFrame frame = new JFrame("Receiving Panel");
    frame.getContentPane().add(receivePanel);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setPreferredSize(new Dimension(300, 300)); // make it bigger so it can be seen
    frame.pack();
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
    // place the sending JPanel into a JDialog
    JDialog dialog = new JDialog(frame, "Sending Panel", false);
    dialog.getContentPane().add(sendPanel);
    dialog.pack();
    dialog.setLocationRelativeTo(null);
    dialog.setVisible(true);
public static void main(String[] args)
    java.awt.EventQueue.invokeLater(new Runnable()
      public void run()
        // run the whole show in a thread-safe manner
        createAndShowUI();
}

Using a static variable declared in an applet in another class

Hi guys,
I created an applet and i want to use one of the static variables declared in teh applet class in another class i have. however i get an error when i try to do that...
in my Return2 class i try to call the variable infoPanel (declared as a static JPanel in myApplet...myApplet is set up like so:
public class myApplet extends JApplet implements ActionListener, ListSelectionListener
here are some of the lines causing a problem in the Return2 class:
myApplet.infoPanel.removeAll();
myApplet.infoPanel.add(functionForm2.smgframeold);
myApplet.infoPanel.validate();
myApplet.infoPanel.repaint();
here are some of the errors i get
dummy/Return2.java [211:1] package myApplet does not exist
myApplet.infoPanel.removeAll();
^
dummy/Return2.java [212:1] package myApplet does not exist
myApplet.infoPanel.add(functionForm2.smgframeold);
^
dummy/Return2.java [213:1] package myApplet does not exist
myApplet.infoPanel.validate();
^
dummy/Return2.java [214:1] package myApplet does not exist
myApplet.infoPanel.repaint();
^
please help! thanks :)

I don't declare any packages though....i think it just doesn't recognize myApplet for some reason..
other errors i got compiling are:
dummy/Return2.java [82:1] cannot resolve symbol
symbol : variable myApplet
location: class Return2
updateDesc.setString(3, myApplet.staticName);
I Don't get why i'm getting this error cuase they worked fine when myApplet was a standalone application, not an applet.
myApplet is in the same folder as Return2 and it compiles properly.

How to kill one class from another class

I need to dipose one class from another class.
So that first i have to find what are all threads running in that class and then to kill them
Assist me.

Subbu_Srinivasan wrote:
I am explaining you in clear way
No you haven't been.
>
In my application i am handling many JInternalFrame.Simultaneously i am running working on more than one frame.
Due to some poor performance of some thread in one JInternalFrame,the thread is keeps on running .
i could not able to proceed further on that screen.
So i have to kill that JInternalFrame.Yoinks.
To be begin with your problem sounds like you are doing everything in one thread. So stop doing that. Second when you get it split up and if a task is taking too much time then interrupt it. No kill. Interrupt. This means the worker thread needs to check sometimes if it has been interrupted.

Reference to string from another class

I've searched google and this forum a bit, but can't seem to find an answer. I'd say the thing I'm looking for is really simple and essential, so I must be a moron. But anyways; I want to get the output of the "process" thing in another class. How do I reference to that string fomr outside it's class?
Thanks.
public class ReadInput {
     private static void printCommands() {
         System.out.println("blabla");
         System.out.println("blabla");
         System.out.println("blabla");
public static void process(String in) {
          Do something with the String "in" here. Say, eventually rename it to "output".
public static void doReadFromStdin() {
     try {
         BufferedReader inStream = new BufferedReader (
                                         new InputStreamReader(System.in)
         String inLine = "";
         String in = inLine;
         while ( !(in.equalsIgnoreCase("quit"))
                 !(in.equalsIgnoreCase("exit")) ) {
             System.out.print("prompt> ");
             in = inStream.readLine();
             process(in);
     } catch (IOException e) {
         System.out.println("IOException: " + e);
public static void main(String[] args) {
      printCommands();
     doReadFromStdin();
}

Maybe this might help
Igor_Pavlove wrote:
public static void process(String in) {
Do something with the String "in" here. Say, eventually rename it to "output".
public static String process(String in){
//Do something, e.g.
String temp = "ifeeltired";
return temp; //Returns the String temp when this method is called.
public static void main(String[] args) {
     printCommands();
doReadFromStdin();
public static void main(String[] args){
String temp = "thisisaroughexamples";
String result = this.process(temp); //Returns a string and stores it in result
CreatePlural.print(result); //This is possible because the method print() in CreatePlural is static and an instance of CreatePlural is not required.
}Edited by: Melanie_Green on Feb 2, 2009 6:46 AM
Edited by: Melanie_Green on Feb 2, 2009 6:47 AM

How can I access another class in a MembershipRule's Expression

Hello,
I want to create an InstanceGroup using Module Microsoft.SystemCenter.GroupPopulator.
I need to collect all Logical Disks which contain an MS SQL DB Log File.
I would start as follows:
<DataSource ID="DS" TypeID="SC!Microsoft.SystemCenter.GroupPopulator">
<RuleId>$MPElement$</RuleId>
<GroupInstanceId>$Target/Id$</GroupInstanceId>
<MembershipRules>
    <MembershipRule>
      <MonitoringClass>$MPElement[Name="Windows!Microsoft.Windows.LogicalDisk"]$</MonitoringClass>
      <RelationshipClass>$MPElement[Name="MSIL!Microsoft.SystemCenter.InstanceGroupContainsEntities"]$</RelationshipClass>
<Expression>
        <And>
  
          <Expression>
            <SimpleExpression>
              <ValueExpression>
                <Property>$MPElement[Name="Windows!Microsoft.Windows.LogicalDevice"]/Name$</Property>
              </ValueExpression>
              <Operator>Equal</Operator>
              <ValueExpression>
  
                <GenericProperty>$MPElement[Name="SQL!Microsoft.SQLServer.2008.DBLogFile"]/Drive$</GenericProperty>
              </ValueExpression>
            </SimpleExpression>
          </Expression>
          <Expression>
            <SimpleExpression>
              <ValueExpression>
                <HostProperty>
                  <MonitoringClass>$MPElement[Name="Windows!Microsoft.Windows.Computer"]</MonitoringClass>
                  <Property>PrincipalName</Property>
                </HostProperty>
              </ValueExpression>
              <Operator>Equal</Operator>
              <ValueExpression>
                <GenericProperty>$MPElement[Name="SQL!Microsoft.SQLServer.2008.DBLogFile"]/Drive$</GenericProperty>
              </ValueExpression>
            </SimpleExpression>
          </Expression>
        </And>
      </Expression>
    </MembershipRule>
</MembershipRules>
</DataSource>
In the first expression you "see" my question:
I want to compare the LogicalDisk's Name Property with the DB Log File's Drive property.
But how can I access the DB Log File's Drive property in this MembershipRule ?
Furthermore LogicalDisk and DB Log File must be hosted on the same Windows Computer.
Would be great if somebody could help.
Thanks
Sebastian

Hi Niki,
thanks for the idea, but that will not work. $Target/Id$ refers always to the group to be discovered.
On last week end I was given following idea, hope it will work:
Step 1
Collect all the DB SQL Logfile Objects and write computername (PrincipalName?) and Driveletter into a textfile, line by line. Shouldn't be a problem, PowerShell is your friend.
Step 2
Read the file from Step 1, build discovery data for each disk drive as object of class "Logical Disk (Server)",
and then discover the containment-relationships from those Logical Drive(Server) Objects to the InstanceGroup.
Perhaps I must do it for the OS-Version related Disks, because I need the target classes of the Logical Disk Freespace monitors. Some more work. "Risks": I donot know the discovery algorithm for the Logical Disk(Server) Objects, but a "deep
dive" into the MPs should help.
Thanks to all, who have read.
I will inform you about progress and success
sebastian

Getting a variable value from another class

Is there any way to get the value of a variable from another class? I have a file that calls another that does some checking then gives a true or false. The place the checking is done is inside an ActionListener I want to use that value in the file that calls the second. Any help would be great.

in 'another class', implement a method,
public boolean isCheckedOutOK( Object obj )
do the comparison in that method (use a suitable argument)

How to get a int value from another class method?

Hi,
how can I get a value of another class method variable value.
example,
class elist
        int a;
     ArrayList<Event> eventArray;
     void addEvent(Event e);
     Event getEvent(int index);
     void removeEvent(int index);
     void orderEventByTime();
interface Event
     void Command();
class servo implements Event
     String ip;
     int time = 10;
     void Command();
class servo_2 implements Event
     String ip;
     int time = 20;
     void Command();
[\code]
I want to get the time value in elist variable a;
and want to compare each class time?.

Hi,
1) this foum provides means to format/tag code, no need to manually add -tags
2) by default, classname start with a capital letter, method names with a lower case letter
3) where do you want to get the time value to Elist.a? During addEvent()?
4) what do you want to do with the time value of each event? Sum all values up to make a an overall sum?
5) where do you want to compare the time value(s)?
To put it in one sentence: please be more specific with your description and answer.
Bye.

Using an int from one class in another class

I am a student writing a java program on renewable energy. Simply I have a power output which is a variable called PowerOutPut. declared as (public int PowerOutPut) I have another class which is a graphics class where I display the variable PowerOutPut on a graph, but i dont know how to call this variable in my graphics class.
if anyone can help, I would be very grateful.
Chris

But bear in mind that it is good practice to declare your variables private (unless you need otherwise) and to provide get and set methods to access and change them.
private int myVariable = 0;
public int getMyVariable(){
return myVariable;
public void setMyVariable(int newValue){
myVariable = newValue;
}Also, class names should start with upper case and variables should start with lower case.
Good luck.

Using a variable from another class

hello friends, I have a class with the follow variable: dbcolTempMax, and the value of this variable I need in another class, how can do to use the value of the variable...thanks

Both people above described the solution, but from the question I take it you are somewhat new to programming. Let me give you a code example which may help.
     public class ClassWithVariable {
          private int dbcolTempMax;
          public int getDbcolTempMax() {
               return dbcolTempMax;
     public class SomeOtherClass {
          ClassWithVariable cwv = new ClassWithVariable();
          cwv.getDbcolTempMax(); // This gets the value of the variable
     }Now if the variable is static, you can provide a static "accessor" method to ge the variable. This will save you the trouble of constructing an object of the class.
Cheers,
Cypher

Adding a JPanel from one class to another Class (which extends JFrame)

Hi everyone,
So hopefully I go about this right, and I can figure out what I'm doing wrong here. As an exercise, I'm trying to write a Tic-Tac-Toe (TTT) game. However, in the end it will be adaptable for different variations of TTT, so it's broken up some. I have a TTTGame.java, and TTTSquareFrame.java, and some others that aren't relavent.
So, TTTGame:import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import joshPack.jUtil.*;
public class TTTGame extends JFrame
     private Integer sides = 3;
     private TTTSquareFrame mainSquare;
     private TTTGame newGame;
     private Container contents;
     private JPanel mainSquarePanel, addPanel;
     public static void main(String [] args)
          TTTGame newGame = new TTTGame();
          newGame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     public TTTGame()
          super("Tic-Tac-Toe");
          contents = getContentPane();
          contents.setLayout(new FlowLayout());
          addPanel = startSimple();
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          contents.add(addPanel);
          setSize(300, 300);
          setVisible(true);
     public JPanel startSimple()
          mainSquare = new TTTSquareFrame(sides);
          mainSquarePanel = mainSquare.createPanel(sides);
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}and TTTSquareFrame:import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import joshPack.jUtil.Misc;
public class TTTSquareFrame
     private JPanel squarePanel;
     private JButton [] squares;
     private int square, index;
     public TTTSquareFrame()
          System.out.println("Use a constructor that passes an integer specifying the size of the square please.");
          System.exit(0);
     public TTTSquareFrame(int size)
     public JPanel createPanel(int size)
          square = (int)Math.pow(size, 2);
          squarePanel = new JPanel();
          squarePanel.setLayout(new GridLayout(3,3));
          squares = new JButton[square];
          System.out.println(MIN_SIZE.toString());
          for(int i = 0; i < square; i++)
               squares[i] = new JButton();
               squares.setRolloverEnabled(false);
               squares[i].addActionListener(bh);
               //squares[i].setMinimumSize(MIN_SIZE);
               squares[i].setVisible(true);
               squarePanel.add(squares[i]);
          squarePanel.setSize(100, 100);
          squarePanel.setVisible(true);
          return squarePanel;
}I've successfully added panels to JFrame within the same class, and this is the first time I'm modularizing the code this way. The issue is that the frame comes up blank, and I get the message "Something's wrong" and it says the addPanel is invalid. Originally, the panel creation was in the constructor for TTTSquareFrame, and I just added the mainSquare (from TTTGame class) to the content pane, when that didn't work, I tried going about it this way. Not exactly sure why I wouldn't be able to add the panel from another class, any help is greatly appreciated.
I did try and cut out code that wasn't needed, if it's still too much let me know and I can try and whittle it down more. Thanks.

Yea, sorry 'bout that, I just cut out the parts of the files that weren't relevant but forgot to compile it just to make sure I hadn't left any remnants of what I had removed. For whatever it's worth, I have no idea what changed, but something did and it is working now. Thanks for your help, maybe next time I'll post an actual question that doesn't somehow magically solve itself.
EDIT: Actually, sorry, I've got the panel working now, but it's tiny. I've set the minimum size, and I've set the size of the panel, so...why won't it respond to that? It almost looks like it's being compressed into the top of the panel, but I'm not sure why.
I've compressed the code into:
TTTGame.java:
import java.awt.*;
import javax.swing.*;
public class TTTGame extends JFrame
     private Integer sides = 3;
     private TTTSquareFrame mainSquare;
     private TTTGame newGame;
     private Container contents;
     private JPanel mainSquarePanel, addPanel;
     public static void main(String [] args)
          TTTGame newGame = new TTTGame();
          newGame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
     public TTTGame()
          super("Tic-Tac-Toe");
          contents = getContentPane();
          contents.setLayout(new FlowLayout());
          mainSquare = new TTTSquareFrame(sides.intValue());
          contents.add(mainSquare);
          setSize(400, 400);
          setVisible(true);
}TTTSquareFrame.java
import java.awt.*;
import javax.swing.*;
public class TTTSquareFrame extends JPanel
     private JButton [] squares;
     private int square, index;
     private final Dimension testSize = new Dimension(50, 50);
     public TTTSquareFrame(int size)
          super();
          square = (int)Math.pow(size, 2);
          super.setLayout(new GridLayout(size, size));
          squares = new JButton[square];
          for(int i = 0; i < square; i++)
               squares[i] = new JButton();
               squares.setMinimumSize(testSize);
               squares[i].setVisible(true);
               super.add(squares[i]);
          setSize(200, 200);
          setVisible(true);
I've made sure the buttons are smaller than the size of the panel, and the panel is smaller than the frame, so...
Message was edited by:
macman104

Use a counter from one class to another class of the same project

Hello!
In my class Book I have a variable, which is in fact a counter, counts the number of books. I need to use this same variable in another class Library, and I want to know if this is possible by any means!
Thank You very much for Your support!

Read this carefully.
Regards,

SetVaule in another class.

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