What is JList in Java?

What is JList in Java?

JList is part of Java Swing package . JList is a component that displays a set of Objects and allows the user to select one or more items . JList inherits JComponent class.

How do I check if a JList is selected?

boolean res = ! list. isSelectionEmpty(); The value of res would be TRUE IF we have a selected item in the JList.

How get values from JList?

Get selected value from JList

1. Create a class that extends JFrame and implements ActionListener interface.
2. Create an array of objects.
3. Create a new JList with the above array.
4. Create a new JButton .
5. Call getSelectedIndex to get the index of the selected item in the JList .

How do you add a JList to a program?

Java JList Example with ActionListener

1. import javax.swing.*;
2. import java.awt.event.*;
3. public class ListExample.
4. {
5. ListExample(){
6. JFrame f= new JFrame();
7. final JLabel label = new JLabel();
8. label.setSize(500,100);

How do you create a JList?

This was an example on how to create a JList in a Java Desktop Application….In order to get the selected value from a JList , one should follow these steps:

1. Create a class that extends JFrame .
2. Create an array of objects. These will be the values of the JList .
3. Create a new JList with the above array.

What is the difference between JList and JComboBox?

A JComboBox is a component that displays a drop-down list and gives users options that we can select one and only one item at a time whereas a JList shows multiple items (rows) to the user and also gives an option to let the user select multiple items.

How do I select multiple items in JList?

Multiple selection list enables the user to select many items from a JList. A SINGLE_INTERVAL_SELECTION list allows selection of a contiguous range of items in the list by clicking the first item, then holding the Shift key while clicking the last item to select in the range.

What is DefaultListModel in Java?

DefaultListModel is a implementation of the ListModel that extends from AbstractListModel . Internally, it is backed by List implementation.

What is JComboBox in Java?

JComboBox is a part of Java Swing package. JComboBox inherits JComponent class . JComboBox shows a popup menu that shows a list and the user can select a option from that specified list . JComboBox can be editable or read- only depending on the choice of the programmer .

Which method is used to add items to JComboBox?

Commonly used Methods: