How do you create a JList in Java?

How do you create a JList in Java?

JList(): creates an empty blank list. JList(E [ ] l) : creates an new list with the elements of the array. JList(ListModel d): creates a new list with the specified List Model….Java Swing | JList with examples.

method explanation
setSelectedIndices(int[] i) changes the selection to be the set of indices specified by the given array.

How do you declare a JList?

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 I iterate through a JList?

This can be done by calling JList ‘s getModel() method which return a ListModel object. From the ListModel we can get the items size, and we can iterate the entire items of the JList component.

Which interface is implemented in JList?

JList ‘s ListUI is responsible for keeping the visual representation up to date with changes, by listening to the model. Simple, dynamic-content, JList applications can use the DefaultListModel class to maintain list elements. This class implements the ListModel interface and also provides a java.

How do I select an item in 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 does a JList work?

Constructs a JList that displays the elements in the specified array. This constructor creates a read-only model for the given array, and then delegates to the constructor that takes a ListModel . Attempts to pass a null value to this method results in undefined behavior and, most likely, exceptions.

How do you get items from JList?

What constructs a JList that displays the elements in the specified array?

JList(ListModel dataModel) Constructs a JList that displays elements from the specified, non-null, model.

How do I select multiple items in JList?

MULTIPLE SELECTION LIST. 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 do you need to know about 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. JList is a easy way to display an array of Vectors . Constructor for JList are : JList(E [ ] l) : creates an new list with the elements of the array.

What is the jlist component in Java Swing?

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. JList is a easy way to display an array of Vectors .

How to print list of values in jlist?

We call the handy method getSelectedValuesList () on the JList instance which returns a List , as in our case, we had declared the JList to contain only String values. For illustration purposes, we simply print this list on the console which prints the list of values selected.

How to create a jlist that accepts a string?

So, we will use that syntax to create a JList that will accept a List : The preceding piece of code is quite simple. We create an instance of the DefaultListModel class by declaring it as accepting only String values using the parameterized syntax.

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