That is some example about GUI. It is very good for user to use on BlueJ.

ButtonDemo.java
ButtonWithLabelImage.java
ButtonWithLargeFont.java
CheckBoxDemo.java

ComboDemo.java
ExceptionDemo1.java
FileChooserDemo.java
FileClassDemo.java
FileInputDemo.java
FileOutputDemo.java
FileSearch.java
Finder.java
FinderWithArgs.java
ImageDemo.java
JRadioButtonsDemo.java
LabelImage.java
ListDemo.java
MenuDemo.java
OptionPaneDemo.java
PanelDemo.java
PanelWithMouseDemo.java
safeOriginal.java
Scribbler.java
ScrollingTextArea.java
SliderDemo.java

TextAreaDemo.java
TextFieldDemo.java
TimerDemo.java
TinyBrowser.java

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