GUI
Jar to exe
Error afhandeling
Dialog
Remove string part
Read files in folder
Java dialog
Message dialogen
showMessageDialog
Teaching Swing
Java Programming Style Guide
gradient_backgrounds
Togglebutton
Github material ui
Swing components
Colorful buttons
JButton with Gradient Color
Visual Guide to Swing Components
How to Use Labels
Look and Feel Themes
Button gradient
Custom button
JAVA Swing voorbeeld
Nimbus Look and Feel
Nimbus Look and Feel voorbeelden
Color dialog