KappaLayout
Comparison of KappaLayout and LambdaLayout with other Layout Managers
The following links require Java to be installed in your browser.
These comparisons use only the AWT GUI code as Java 1.1 has a broader distribution on web browsers, at least, it did when I wrote these applets 9 years ago. Any modern Java installation should be fine.
Comparison of KappaLayout and LambdaLayout
Comparison with GridLayout