How do I change JFrame image icon?

This example demonstrate how to change a JFrame image icon using the setIconImage() method.

package org.kodejava.example.swing;

import javax.imageio.ImageIO;
import javax.swing.*;
import java.awt.*;
import java.awt.image.BufferedImage;

public class FrameIconExample extends JFrame {
    public static void main(String[] args) {
        FrameIconExample frame = new FrameIconExample();

        // Set the window size and its title
        frame.setSize(new Dimension(250, 250));
        frame.setTitle("Frame Icon Example");

        // Read the image that will be used as the application icon.
        // Using "/" in front of the image file name will locate the
        // image at the root folder of our application. If you don't
        // use a "/" then the image file should be on the same folder
        // with your class file.
        try {
            URL resource = frame.getClass().getResource("/logo.png");
            BufferedImage image =;
        } catch (IOException e) {

        // Display the form


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