jcombobox

How can I change the arrow style in a JComboBox

You can override createArrowButton() in BasicComboBoxUI. BasicArrowButton is a convenient starting point. class ColorArrowUI extends BasicComboBoxUI { public static ComboBoxUI createUI(JComponent c) { return new ColorArrowUI(); } @Override protected JButton createArrowButton() { return new BasicArrowButton( BasicArrowButton.SOUTH, Color.cyan, Color.magenta, Color.yellow, Color.blue); } } Then install it. JComboBox combo = new JComboBox(); combo.setUI(ColorArrowUI.createUI(combo));

How to add unique JComboBoxes to a column in a JTable (Java)

Override the getCellEditor(…) method. For example; import java.awt.*; import java.awt.event.*; import java.util.List; import java.util.ArrayList; import javax.swing.*; import javax.swing.border.*; import javax.swing.table.*; public class TableComboBoxByRow extends JFrame { List<TableCellEditor> editors = new ArrayList<TableCellEditor>(3); public TableComboBoxByRow() { // Create the editors to be used for each row String[] items1 = { “Red”, “Blue”, “Green” }; JComboBox comboBox1 = … Read more

How to set Icon to a JLabel from an image from a folder?

This is my directory structure : packageexample | ——————————————- | | | build(folder) src(folder) manifest.txt | | swing(package) ComboExample.java | imagetest(subpackage) | ComboExample.class + related .class files This is the content of the ComboExample.java file : package swing.imagetest; import java.awt.*; import java.awt.event.*; import java.net.*; import javax.swing.*;      public class ComboExample { private String[] data … Read more

JComboBox Selection Change Listener?

It should respond to ActionListeners, like this: combo.addActionListener (new ActionListener () { public void actionPerformed(ActionEvent e) { doSomething(); } }); @John Calsbeek rightly points out that addItemListener() will work, too. You may get 2 ItemEvents, though, one for the deselection of the previously selected item, and another for the selection of the new item. Just … Read more

Is it possible to have an autocomplete using jtextfield and a Jlist?

1) you have to sort your array before use for better performance… 2) as I mentioned you have to take these two clasess 3) don’t forget set initial value for better and nicest work with these Components simple output from code import java.awt.*; import java.util.ArrayList; import javax.swing.*; public class AutoCompleteTextField { private JFrame frame; private … Read more

How do I get the CellRow when there is an ItemEvent in the JComboBox within the cell

It sounds like you are Using a Combo Box as an Editor. If so, the TableCellEditor method, getTableCellEditorComponent(), includes the row as a parameter. There’s a related example here. Addendum: To change a value in the same row you’ve edited, just have the model return the correct value for the “other column” based on the … Read more

Dynamic JComboBoxes

Yes, simply create a DefaultComboBoxModel for each set, and do setModel() on JComboBox2 when JComboBox1 changes. Addendum: For example, import java.awt.EventQueue; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.ComboBoxModel; import javax.swing.DefaultComboBoxModel; import javax.swing.JComboBox; import javax.swing.JFrame; import javax.swing.JPanel; public class ComboTest extends JPanel implements ActionListener, Runnable { private final JComboBox combo1 = new JComboBox( new String[]{“Course 1”, “Course … Read more