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About Byron Kiourtzoglou

Byron Kiourtzoglou
Byron is a master software engineer working in the IT and Telecom domains. He is an applications developer in a wide variety of applications/services. He is currently acting as the team leader and technical architect for a proprietary service creation and integration platform for both the IT and Telecom industries in addition to a in-house big data real-time analytics solution. He is always fascinated by SOA, middleware services and mobile development. Byron is co-founder and Executive Editor at Java Code Geeks.

Create JList example

In this example we are going to see how to create a JList component in a Java Desktop Application. The JList component provides a very easy way to get user input, especially when you want to give the user a number of specific options.

In order to get the selected value from a JList, one should follow these steps:

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

Let’s see the code:

package com.javacodegeeks.snippets.desktop;

import java.awt.FlowLayout;

import javax.swing.JFrame;
import javax.swing.JList;

public class CreateJListExample  extends JFrame {

	private static final long serialVersionUID = 1L;

	public CreateJListExample() {

		// set flow layout for the frame
		this.getContentPane().setLayout(new FlowLayout());

		Object[] data = { "Value 1", "Value 2", "Value 3", "Value 4", "Value 5" };

		JList list = new JList(data);

		// add list to frame
		add(list);

	}

	private static void createAndShowGUI() {

  //Create and set up the window.

  JFrame frame = new CreateJListExample();

  //Display the window.

  frame.pack();

  frame.setVisible(true);

  frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

    }

	public static void main(String[] args) {

  //Schedule a job for the event-dispatching thread:

  //creating and showing this application's GUI.

  javax.swing.SwingUtilities.invokeLater(new Runnable() {

public void run() {

    createAndShowGUI(); 

}

  });
    }

}

This was an example on how to create a JList in a Java Desktop Application.

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