Java Utililty Methods ImageIcon Create

ImageIcon createImageIcon(Class clazz, String path)
Returns an ImageIcon, or throws a RuntimeException if the path was invalid.

URL imageUrl = clazz.getResource(path);
if (imageUrl != null) {
 return new ImageIcon(imageUrl);
throw new RuntimeException("Couldn't find file: " + path);

ImageIcon createImageIcon(Class clazz, String pathToImage, int sizeX, int sizeY)
create Image Icon

ImageIcon ret = null;
if (pathToImage != null) {
 try {
 InputStream is = clazz.getResourceAsStream(pathToImage);
 ByteArrayOutputStream baos = new ByteArrayOutputStream();
 byte[] buffer = new byte[1024];
 int bytesRead = 0;
 while ((bytesRead = is.read(buffer)) != -1) {
...

ImageIcon createImageIcon(Class theClass, String path, String description)
Loads the image icon from a package.

URL imgURL = theClass.getClass().getResource(path);
if (imgURL != null) {
 return new ImageIcon(imgURL, description);
} else {
 return null;

ImageIcon createImageIcon(Class bezugsklasse, String path)
create Image Icon

final URL imgURL = bezugsklasse.getResource(path);
if (imgURL != null) {
 return new ImageIcon(imgURL);
System.err.println("Couldn't find file: " + path);
return null;

ImageIcon createImageIcon(ClassLoader classloader, String path, String description)
create Image Icon

URL url = classloader.getResource(path);
if (null != url) {
 return new ImageIcon(url);
} else {
 final String error = "Supplied image icon resource path is unknown [" + path + "].";
 throw new IllegalArgumentException(error);

ImageIcon createImageIcon(File f, String description)
Load BufferedImage form file, scale it and converts to icon.

try {
 BufferedImage i = ImageIO.read(f);
 return new ImageIcon(i.getScaledInstance(50, 50, Image.SCALE_SMOOTH));
} catch (Exception ex) {
 return null;

ImageIcon createImageIcon(final Icon icon)
Creates an ImageIcon from any Icon.

BufferedImage bufferedImage = new BufferedImage(icon.getIconWidth(), icon.getIconHeight(),
 BufferedImage.TYPE_INT_ARGB);
Graphics g = bufferedImage.createGraphics();
icon.paintIcon(new JLabel(), g, 0, 0);
g.dispose();
return new ImageIcon(bufferedImage);

ImageIcon createImageIcon(final String src)
create Image Icon

if (!new File(src).exists()) {
 return new ImageIcon();
} else {
 try {
 return new ImageIcon(ImageIO.read(new File(src)));
 } catch (final Throwable e) {
 return new ImageIcon();

ImageIcon createImageIcon(java.net.URL imgURL)
create Image Icon

return new ImageIcon(imgURL);

ImageIcon createImageIcon(String iconFile)
Returns an ImageIcon, or null if the iconFile is invalid.

if (iconFile != null) {
 return new ImageIcon(iconFile);
} else {
 System.err.println("Couldn't find file: " + iconFile);
 return null;