The Java Date Picker distribution package comes with four jar files:
javadatepicker.jar contains the core classes needed to use the components,
javadatepicker-i18n.jar contains translations for other locales than English-based ones,
javadatepicker-beans.jar contains helper classes for UI builders (JBuilder, Netbeans),
javadatepicker-demo.jar contains a demo application that shows the capabilities of the components.
Usually, you will need only javadatepicker.jar for your application. If you intend to use other locales than English-based ones, then you will also need javadatepicker-i18n.jar. We will show later how to localize the components for a locale that does not exist in the javadatepicker-i18n.jar file.
If you like to build your application using a UI builder like those found in JBuilder or Netbeans, then make sure that javadatepicker-beans.jar is registered correctly.