How do you make an editable combo box in Java?

How do you make an editable combo box in Java?

By default, the user not allowed to edit the data in the text field portion of the JComboBox. If we want to allow the user to edit the text field, call setEditable(true) method. A JComboBox can generate an ActionListener, ChangeListener or ItemListener when the user actions on a combo box.

How do you code a comboBox in Java?

Java JComboBox Example with ActionListener

1. import javax.swing.*;
2. import java.awt.event.*;
3. public class ComboBoxExample {
4. JFrame f;
5. ComboBoxExample(){
6. f=new JFrame(“ComboBox Example”);
7. final JLabel label = new JLabel();
8. label.setHorizontalAlignment(JLabel.CENTER);

How do you clear a comboBox in Java?

this. combo. removeAllItems(); to remove all the items in JComboBox.

How do you create a drop down list in Java?

Create a Dropdown Menu Using JComboBox in Java Below, we first create the array of options to display in the dropdown list. JComboBox is a component and needs a frame to reside, so we create a JFrame object. Then, we create the JComboBox object and pass the options array as its argument in the constructor.

How do you build a combo box?

Add a combo box to a worksheet

1. Pick a column that you can hide on the worksheet and create a list by typing one value per cell.
2. Click Developer > Insert.
3. Pick the type of combo box you want to add:
4. Click the cell where you want to add the combo box and drag to draw it.

What is combobox in Java?

In Java, you can create combo boxes. A combo box is a combination of a text field and a drop-down list from which the user can choose a value. If the text-field portion of the control is editable, the user can enter a value in the field or edit a value retrieved from the drop-down list. Creating a combo box is easy.

How do you reset a combobox?

The easiest way to clear the second combobox is to just use Reset(). That will clear all the current selections and reset the combobox to its default selection.

How do you refresh a combobox in Java?

4 Answers

1. you have to add ComboBoxModel to the JComboBox ,
2. there you can to add / remove / modify the value,
3. events implemented in the API refreshing your view ( JComboBox ) without moreover code lines.
4. all updates must be done on Event Dispatch Thread.

What do you do with a jcombobox in Java?

Creates a JComboBox that contains the elements in the specified array. Creates a JComboBox that contains the elements in the specified Vector. It is used to add an item to the item list. It is used to delete an item to the item list.

What do you need to know about JavaFX combobox?

ComboBox is a part of the JavaFX library. JavaFX ComboBox is an implementation of simple ComboBox which shows a list of items out of which user can select at most one item, it inherits the class ComboBoxBase. Constructors of ComboBox: ComboBox(): creates a default empty combo box.

How to create an uneditable combo box in Java?

Using an Uneditable Combo Box 1 Click the Launch button to run the ComboBox Demo using Java™ Web Start ( download JDK 7 or later ). 2 Choose an animal name from the combo box to view its picture. 3 Compare the operation and GUI of this program to one that uses radio buttons: run RadioButtonDemo (it requires release 6).

What is the lightweightpopupenabled property in jcombobox?

Sets the lightWeightPopupEnabled property, which provides a hint as to whether or not a lightweight Component should be used to contain the JComboBox, versus a heavyweight Component such as a Panel or a Window. Sets the maximum number of rows the JComboBox displays. Sets the data model that the JComboBox uses to obtain the list of items.