Java Look and Feel

We can modify the look and feel of java GUI components,Here is an example used to implement the look and feel concepts in java programs.

Using below code we can set the operating systems look and feel.

UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());

import javax.swing.SwingUtilities;
import javax.swing.UIManager;

public class LookAndFeel {
    public static void main(String[] args) {
        try {
            UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
            // UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
        } catch (Exception ex) {
            ex.printStackTrace();
        }
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                createTheGUIComponents();
            }

            private void createTheGUIComponents() {
                // Your implementation here…
            }
        });
    }
}

We can also set the lot of GUI skins using substance.jar.

Download the latest substance.jar using below link

http://weblogs.java.net/blog/2005/12/29/swinging-java-ides

Add the above jar file in java classpath.

Java Swing - Icon as JButton

This section illustrates you how to show the icon on the button in Java Swing without border.

Example code.

import java.awt.Container;

import java.awt.FlowLayout;

import java.awt.Image;

import javax.swing.Icon;

import javax.swing.ImageIcon;

import javax.swing.JButton;

import javax.swing.JDialog;

import javax.swing.JLabel;

import javax.swing.JTextField;

public class IconButton extends JDialog {

public IconButton() {

JLabel filename = new JLabel("File Name");

JTextField filenameLoc = new JTextField(10);

Icon image = new ImageIcon(

"url of the image");

JButton iconButton = new JButton(image);

iconButton.setBorderPainted(false);

iconButton.setContentAreaFilled(false);

Container con = getContentPane();

con.setLayout(new FlowLayout());

con.add(filename);

con.add(filenameLoc);

con.add(iconButton);

setLayout(new FlowLayout());

setSize(500, 300);

setVisible(true);

}

public static void main(String[] args) {

IconButton obj = new IconButton();

}

}