3 JComboBox in one panel

Hi,
I am using Java 1.3.1.
I have a panel in which i am putting 3 JComboBox objects(typically a date ie day,mth,yr)
the class implements ActionListener and in the actionPerformed i am tracking the events of tbese JComboBoxs'.However I want to indentify which combo box was cliked..ie was it day,mth,yr and accordingly write futher logic.
How can i find which JComboBox is changed?
Thanx a lot..it seems to be pretty simple..but somehow i am not able to get it..:(

Never mind getActionCommand, you aren't required to set one, or you could change it in your code somewhere and break your listener. Use getSource() to the the object that caused the event. Then use 'if' to see if that object is cb1, cb2, or cb3..
I'd make a small inner class for this panel that implements a listener, and add it to all 3 comboboxes.. Put the listeners on the comboboxes themselves, I wouldnt have the class implement a listener in this case..
if(ae.getActionCommand().equals("comboBoxChanged"))
JComboBox cb = (JComboBox)ae.getSource();

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      panel1.setBounds(5,5,400,250);
      contentPane.add(panel1);
      buttonMajorFrame.setBounds(5,350,150,20);
      buttonMajorFrame.addActionListener(this);
      contentPane.add(buttonMajorFrame);
   } //constructor ends
   public void actionPerformed(ActionEvent ev) {
      if (ev.getSource() == buttonMajorFrame) panel1.panel11.textField11.setText("majorFrame working");
   } //methode ends
} //class endss
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
public class Panel1 extends JPanel {
   Panel11 panel11;
   Panel12 panel12;
   public Panel1() {
      panel11 = new Panel11();
      panel12 = new Panel12(panel11);
      setLayout(null);
      panel11.setBounds(5,5,200,50);
      add(panel11);
      panel12.setBounds(5,65,200,50);
      add(panel12);
   //end constructor
}//end classs
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
public class Panel11 extends JPanel implements ActionListener {
   public JTextField textField11;
   JButton button11;
   public Panel11() {
      setLayout(null);
      textField11 = new JTextField();
      button11 = new JButton("Button 11");
      textField11.setBounds(5,5,120,20);
      add(textField11);
      button11.setBounds(5,25,120,20);
      button11.addActionListener(this);
      add(button11);
   } //constructor ends
   public void actionPerformed(ActionEvent ev) {
      if (ev.getSource() == button11) textField11.setText("Text11 working");
   } //method ends
} //class endss
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;
import javax.swing.event.*;
public class Panel12 extends JPanel implements ActionListener {
   JButton button12 = new JButton("Button 12");
   public Panel11 panel11;
   public Panel12(Panel11 panel11) {
      this.panel11=panel11;
      setLayout(null);
      button12.setBounds(5,5,120,20);
      button12.addActionListener(this);
      add(button12);
   }//constructor ends
   public void actionPerformed(ActionEvent ev) {
      if (ev.getSource() == button12) panel11.textField11.setText("Text12 working");
   }//method ends
}//class endssI think this is what you're looking for and hope it saves your rear end...hehehe!
;o)
V.V.

Why 1: Type selected in yellow and 2: only one panel stays open?

In Design CS4. G5 Mac. Final Tiger.
1. I was setting some type to be force justified L/R. Several lines of centered type. Most of it, not all of it, became selected in solid yellow. I did not do the selecting. I could not find the answer in either of two ID reference books.
I checked the Prefs several times, and the only thing I found that MIGHT relate to this is "Keeps." (Preferences > Composition > Keeps Violations/H&J Violations.) Though it says nothing about color choice nor about what it signifies. I know what pink signifies, but not what yellow does.
2. Asked about this next problem before and was told about Workspaces and was told about grouping panels, neither answering the question as I recall. So let me try again.
I have panel A open. It may be alone as Panel A or in a group with Panel B and maybe even with Panel C. Doesn't matter. But now I want to open Panel D. As soon as I click on Panel D, Panel A (alone or grouped) disappears. So my question is: Can I/how can I keep more than one panel open at the same time, grouped or single being 100% irrelevant? How can I keep Panel A and Panel D open at the same time as separate, not grouped, panels?
I tried to ask clearly. My experience is it is most efficient (in Adobe Forums and in real life) to be clear about what you do want and equally clear about what you do not. —Thank you.

1. Yellow highlight is, I believe, substituted glyphs. Is the affected type all caps or samll caps, perchance, or non-default figures? You usually see this with ligatures, but small caps is pretty common, too.
2. Do you have auto-collapse panels selected inthe prefs? This one would help to see a screen shot, I think. If the panels are docked, you must expand the dock to panel width or only one group (and a group can be one panel) will expand from the icon state at a time.

How many JComboBox in my panel?

Hi,
I'm writing a simple JPanel which contains three JComboBox, one for the day, one for the month and one for the year. It works fine and the constructor is the following:
public class DatePanel extends JPanel implements ItemListener{
     * The combobox for the day.
    protected JComboBox comboDay = null;
     * The combobox for the month.
    protected JComboBox comboMonth = null;
     * The year.
    protected JComboBox comboYear = null;
     * A flag that indicates if the user has manually changed the date.
    protected boolean dateHasChanged = false;
     * Creates and set up each component of this panel.
    protected void setUpGUI(){
     // get the current date
     Calendar today = Calendar.getInstance();
     // create the components
     this.comboDay = new JComboBox();
     for(int i=1; i<=31; i++)
         this.comboDay.addItem(i);
     this.comboMonth = new JComboBox();
     for(int i=1; i<=12; i++)
         this.comboMonth.addItem(i);
     this.comboYear = new JComboBox();
     int currentYear = today.get(Calendar.YEAR);
     for( int i= (currentYear - 60); i< (currentYear + 5); i++)
         this.comboYear.addItem(i);
     // add the null values
     this.comboDay.addItem("--");
     this.comboMonth.addItem("--");
     this.comboYear.addItem("--");
     this.comboDay.setSelectedItem("--");
     this.comboMonth.setSelectedItem("--");
     this.comboYear.setSelectedItem("--");
     // add the listener
     this.comboDay.addItemListener(this);
     this.comboMonth.addItemListener(this);
     this.comboYear.addItemListener(this);
     // display components
     this.setLayout( new FlowLayout() );
     this.add(this.comboDay);
     this.add(this.comboMonth);
     this.add(this.comboYear);
     * Builds a panel without initializing it with a specific date.
    public DatePanel(){
     super();
     this.setUpGUI();
    }then I've got a subclass of the above panel which adds two comboes, one for the hour and one for minute. This is also working fine, and I've got a flag that says if the above three comboes should appear or not in the panel:
public class TimePanel extends DatePanel {
     * The comboHour selection combo box.
    protected JComboBox comboHour = null;
     * The comboMinute selection combo box.
    protected JComboBox comboMinute = null;
     * Builds the time panel with the specific comboboxes.
     * @param alsoDates true if also the dates should be visibles
    public TimePanel(boolean alsoDates){
     super();
     this.setUpGUI();
     // shuld the dates be available?
     if( ! alsoDates ){
         this.comboDay.setEnabled(false);
         this.comboMonth.setEnabled(false);
         this.comboYear.setEnabled(false);
         this.remove(this.comboDay);
         this.remove(this.comboMonth);
         this.remove(this.comboYear);
     * Sets up the components.
    @Override
    protected void setUpGUI() {
     super.setUpGUI();
     // add the time components
     this.comboHour = new JComboBox();
     for( int i=0; i<24; i++ )
         this.comboHour.addItem(i);
     this.comboHour.addItemListener(this);
     this.comboMinute = new JComboBox();
     for(int i=0; i<60; i++)
         this.comboMinute.addItem(i);
     this.comboMinute.addItemListener(this);
     this.add(new JLabel("hh:"));
     this.add(this.comboHour);
     this.add(new JLabel("mm:"));
     this.add(this.comboMinute);
    }As you can see, when I pass false to the constructor of the TimePanel, the comboes of the date panel are removed from the layout of the panel itself, thus showing only the hour and minute ones.
Now I was writing a JUnit test for this, and surprisingly when I run a code like the following:
     TimePanel tp1 = timePanel = new TimePanel(false);
     Component[] components = tp1.getComponents();
     int comboCount = 0;
     // count how many jcombobox there are, since it has been initialized
     // with the time only, it should contain only 2 combobox (hour and minutes)
     for(int i=0;i<components.length; i++ )
         if( components[i] instanceof JComboBox )
          comboCount ++;I found that the number of comboes on my panel are 7[, that is more than the max (5) when all the components are displayed. What is wrong here?
Thanks,
Luca

I found that the problem seems to be in the setUpGui method, that is called from the parent constructor and from the child constructor, thus displaying 7 comboes. But if I remove the call from the child constructor then it seems as the parent comboes are uninitialized and thus I got a nullpointer exception.
If I modify the constructor of the TimePanel into this:
   public TimePanel(boolean alsoDates){
     this.setUpGUI();
     // shuld the dates be available?
     if( ! alsoDates ){
         this.comboDay.setEnabled(false);
         this.comboMonth.setEnabled(false);
         this.comboYear.setEnabled(false);
         this.remove(this.comboDay);
         this.remove(this.comboMonth);
         this.remove(this.comboYear);
    }and explicity call the super.setupgui into the setupgui method
protected void setUpGUI() {
     super.setUpGUI();
     // add the time components
     this.comboHour = new JComboBox();
     for( int i=0; i<24; i++ )
         this.comboHour.addItem(i);
     this.comboHour.addItemListener(this);
     this.comboMinute = new JComboBox();
     for(int i=0; i<60; i++)
         this.comboMinute.addItem(i);
     this.comboMinute.addItemListener(this);
     this.add(new JLabel("hh:"));
     this.add(this.comboHour);
     this.add(new JLabel("mm:"));
     this.add(this.comboMinute);
    }I got that the hour and minute comboes are added twice, and moreover the day,month and year are not removed. What is the right way to call the setupgui method to do what I'd like?
Luca

3 JComboBox in one panel

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