Can image of any size and dimension be used as an icon in JFrame?

Question

I am trying to set the icon that appears in the top-left corner of a frame as a custom image with .gif extension, instead of the default java icon. I tried using :

setIconImage(Toolkit.getDefaultToolkit().getImage("/jlab/mainframe/images/jLab.gif"));

However, whenever I run the application, the default java icon still appears. Can image of any size be used as an icon? if yes then kindly resolve my problem. Thanks in advance.

Answer 1

试试这个（它将在类路径中查找）：

setIconImage(Toolkit.getDefaultToolkit().getImage(this.getClass().getResource("/jlab/mainframe/images/jLab.gif")));