Urgent !!!!!!!! JTextField's setMaximumSize effects the focus behavior

Question

Urgent !!!!!!!!
I am facing a weired problem with focus gain. I have quite complex code, so I have made short by cutting the business code to simplefy it. This code will behave normal if you will compile and run this code. Its focus behave in a normal way.
It is import to run this example first in right way then run it for probelm.
For problem do the following step
1. goto buildTimePanel() at last of the code
2. deselect the two commented lines in this function.
3. compile the code and run.
Problem :
Focus passes to Search button before it passes through JComboBox's.
Please provide me the solution......... it is urgent!!!!!!!!!!!!
Code is
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class StatisticsPanel extends JFrame
//Calendar object for this machine
GregorianCalendar myCalendar;
// The panels
JPanel filterPanel;
JPanel leftPanel;
// Data Fields
JTextField startDate;
JTextField endDate;
JTextField startTime;
JTextField endTime;
// Search Buttons
static JButton srchButton;
// Combo boxes and Maps
JComboBox cbFile;
JComboBox cbDevice;
public StatisticsPanel()
myCalendar = new GregorianCalendar();
leftPanel = new JPanel();
leftPanel.setLayout(new BorderLayout());
filterPanel = new JPanel();
makeFilterPanel();
leftPanel.add(filterPanel, "North");
JFrame f = new JFrame();
f.setContentPane(leftPanel);
f.pack();
f.show();
private void makeFilterPanel()
// Time Selection
java.util.List panelList = new ArrayList();
for(int i = 0; i < 5; i++)
JPanel jp = new JPanel();
jp.setLayout(new BoxLayout(jp, BoxLayout.X_AXIS));
panelList.add(jp);
JPanel timePanel = new JPanel();
timePanel.setLayout(new BoxLayout(timePanel, BoxLayout.Y_AXIS));
JLabel end = new JLabel("End:");
endDate = new JTextField(myCalendar.getTime().toString());
endTime = new JTextField(myCalendar.getTime().toString());
buildTimePanel(end, endDate, endTime, (JPanel)panelList.get(1));
// Set back one hour
myCalendar.roll(Calendar.HOUR_OF_DAY, false);
JLabel start = new JLabel("Start:");
startDate = new JTextField(myCalendar.getTime().toString());
startTime = new JTextField(myCalendar.getTime().toString());
buildTimePanel(start, startDate, startTime,(JPanel)panelList.get(0));
timePanel.add((JPanel)panelList.get(0));
timePanel.add((JPanel)panelList.get(1));
filterPanel.add(timePanel);
filterPanel.setLayout(new BoxLayout(filterPanel, BoxLayout.X_AXIS));
JPanel aPanelDevice = new JPanel();
JPanel aPanelFile = new JPanel();
JPanel aPanel = new JPanel();
aPanel.setLayout(new BoxLayout(aPanel, BoxLayout.Y_AXIS));
cbDevice = new JComboBox();
cbDevice.addItem("Item1 ");
cbFile = new JComboBox();
cbFile.addItem("item2 ");
buildOptionPanel(new JLabel("Device:"), cbDevice, aPanelDevice);
aPanel.add(aPanelDevice);
buildOptionPanel(new JLabel(" File:"), cbFile, aPanelFile);
aPanel.add(aPanelFile);
filterPanel.add(aPanel);
srchButton = new JButton("Search");
filterPanel.add(srchButton);
filterPanel.setSize(filterPanel.getPreferredSize());
private void buildOptionPanel(JLabel label,JComponent comp, JPanel panel) {
panel.add(label);
JComboBox textField = (JComboBox)comp;
panel.add(textField);
private void buildTimePanel(JLabel label, JTextField firstField,
JTextField secondField, JPanel panel) {
panel.add(label);
Dimension d = firstField.getPreferredSize();
//firstField.setMaximumSize(d);
panel.add(firstField);
//secondField.setMaximumSize(d);
secondField.setMinimumSize(d);
secondField.setPreferredSize(d);
panel.add(secondField);
public static void main(String[] args) {
new StatisticsPanel();
} // end StatisticsPanel class

Answer 1

Thanks guys,
I have found the problem..........
The problem was
java.util.List panelList = new ArrayList();
for(int i = 0; i < 5; i++)
JPanel jp = new JPanel();
jp.setLayout(new BoxLayout(jp, BoxLayout.X_AXIS));
panelList.add(jp);
I have changed this code along with two other line, where we accesssing the panels from the list.
The news code is
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.*;
public class StatisticsPanel extends JFrame
//Calendar object for this machine
GregorianCalendar myCalendar;
// The panels
JPanel filterPanel;
JPanel leftPanel;
// Data Fields
JTextField startDate;
JTextField endDate;
JTextField startTime;
JTextField endTime;
// Search Buttons
static JButton srchButton;
// Combo boxes and Maps
JComboBox cbFile;
JComboBox cbDevice;
public StatisticsPanel()
myCalendar = new GregorianCalendar();
leftPanel = new JPanel();
leftPanel.setLayout(new BorderLayout());
filterPanel = new JPanel();
makeFilterPanel();
leftPanel.add(filterPanel, "North");
JFrame f = new JFrame();
f.setContentPane(leftPanel);
f.pack();
f.show();
private void makeFilterPanel()
// Time Selection
JPanel jp1 = new JPanel();
JPanel jp2 = new JPanel();
JPanel timePanel = new JPanel();
timePanel.setLayout(new BoxLayout(timePanel, BoxLayout.Y_AXIS));
JLabel end = new JLabel("End:");
endDate = new JTextField(myCalendar.getTime().toString());
endTime = new JTextField(myCalendar.getTime().toString());
buildTimePanel(end, endDate, endTime, jp1);
// Set back one hour
myCalendar.roll(Calendar.HOUR_OF_DAY, false);
JLabel start = new JLabel("Start:");
startDate = new JTextField(myCalendar.getTime().toString());
startTime = new JTextField(myCalendar.getTime().toString());
buildTimePanel(start, startDate, startTime, jp2);
timePanel.add(jp2);
timePanel.add(jp1);
filterPanel.add(timePanel);
filterPanel.setLayout(new BoxLayout(filterPanel, BoxLayout.X_AXIS));
JPanel aPanelDevice = new JPanel();
JPanel aPanelFile = new JPanel();
JPanel aPanel = new JPanel();
aPanel.setLayout(new BoxLayout(aPanel, BoxLayout.Y_AXIS));
cbDevice = new JComboBox();
cbDevice.addItem("Item1 ");
cbFile = new JComboBox();
cbFile.addItem("item2 ");
buildOptionPanel(new JLabel("Device:"), cbDevice, aPanelDevice);
aPanel.add(aPanelDevice);
buildOptionPanel(new JLabel(" File:"), cbFile, aPanelFile);
aPanel.add(aPanelFile);
filterPanel.add(aPanel);
srchButton = new JButton("Search");
filterPanel.add(srchButton);
filterPanel.setSize(filterPanel.getPreferredSize());
private void buildOptionPanel(JLabel label,JComponent comp, JPanel panel) {
panel.add(label);
JComboBox textField = (JComboBox)comp;
panel.add(textField);
private void buildTimePanel(JLabel label, JTextField firstField,
JTextField secondField, JPanel panel) {
panel.add(label);
Dimension d = firstField.getPreferredSize();
firstField.setMaximumSize(d);
panel.add(firstField);
secondField.setMaximumSize(d);
secondField.setMinimumSize(d);
secondField.setPreferredSize(d);
panel.add(secondField);
public static void main(String[] args) {
new StatisticsPanel();
} // end StatisticsPanel class