How do I change the default application icon in Java?

Question

I\'m using NetBeans, trying to change the familiar Java coffee cup icon to a png file that I have saved in a resources directory in the jar file. I\'ve found many different

Answer 1

java.net.URL url = ClassLoader.getSystemResource("com/xyz/resources/camera.png");

May or may not require a '/' at the front of the path.

Answer 2

In a class that extends a javax.swing.JFrame use method setIconImage.

this.setIconImage(new ImageIcon(getClass().getResource("/resource/icon.png")).getImage());

Answer 3

Example:

URL imageURL = this.getClass().getClassLoader().getResource("Gui/icon/report-go-icon.png");
ImageIcon iChing = new ImageIcon("C:\\Users\\RrezartP\\Documents\\NetBeansProjects\\Inventari\\src\\Gui\\icon\\report-go-icon.png");      
btnReport.setIcon(iChing); 
System.out.println(imageURL);

Answer 4

inside frame constructor

try{    
       setIconImage(ImageIO.read(new File("./images/icon.png")));   
   }
catch (Exception ex){
       //do something
   }