Question

I’d like to create a small Java applet that displays a message and a graphic, but done using Jython. Using the code below I get the error message “TypeError: setIcon(): 1st arg can’t be coerced to javax.swing.Icon”

Can anyone offer advise as to

1. How I can get this chunk of code working?
2. Where I might find Jython examples that build GUI windows using Java.swing objects?

Many thanks indeed!
-thescoop.

#############################
from javax.swing import JFrame;
from javax.swing import *;
from java.awt import *;

jf = JFrame();
jf.setSize(500,500);
jf.setLocation(100, 50);
jf.setTitle('This is the title');
jf.setLayout(FlowLayout());
l = JLabel();
l.setIcon('lena.png');
jf.add(l);
jf.pack();
jf.setVisible(True);

#

Answer 1

The problem is in l.setIcon('lena.png'); the setIcon() method expects an Icon and not a string. The correct way is to create an ImageIcon and then use it. For example:

ico = ImageIcon('croco.png');
l.setIcon(ico);

The croco.png is a test image on my system.