Customize the JOptionPane layout with updated color and image in Java

Customize the layout by changing the look and feel of the panel in which you added the component −

ImageIcon icon = new ImageIcon(new URL("http −//www.tutorialspoint.com/images/C-PLUS.png"));
JLabel label = new JLabel(icon);
JPanel panel = new JPanel(new GridBagLayout());
panel.add(label);
panel.setOpaque(true);
panel.setBackground(Color.ORANGE);

Above, we have added an image and even updated the background color of the panel.

Now, set it for the text panel −

JPanel textPanel = new JPanel(new GridLayout(10, 5)); textPanel.setBackground(Color.Magenta);

The following is an example to customize the JOptionPane layout −

Example

package my;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.GridBagLayout;
import java.awt.GridLayout;
import java.net.URL;
import javax.swing.ImageIcon;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
public class SwingDemo {
   public static void main(String[] args) throws Exception {
      ImageIcon icon = new ImageIcon(new URL("http −//www.tutorialspoint.com/images/C-PLUS.png"));
      JLabel label = new JLabel(icon);
      JPanel panel = new JPanel(new GridBagLayout());
      panel.add(label);
      panel.setOpaque(true); panel.setBackground(Color.ORANGE);
      JPanel textPanel = new JPanel(new GridLayout(10, 5)); textPanel.setBackground(Color.MAGENTA);
      for (int i = 0; i < 20; i++) {
         textPanel.add(new JLabel("Learn C++"));
      }
      JPanel panel2 = new JPanel(new BorderLayout());
      panel2.add(textPanel);
      panel2.add(panel, BorderLayout.EAST);
      JOptionPane.showMessageDialog(null, panel2, "Course",JOptionPane.DEFAULT_OPTION);
   }
}

Output