A grid component that can be used in Swing applications. It part full featured spreadsheet editor written in Java. [Open source, LGPL]

A Java Swing components library provides useful components for easier GUI development includes: JConsole, a java console replacement, redirects stdout, stderr; JSplash, a splash screen. [Open source, LGPL]

A set of Java GUI components including: JDataGrid, JWizardPane, JDirChooser, JLinkButton (a browser launch button), JCalendar. [Commercial, with sources]

A Swing component that displays date information and acts as an interface through which users can modify it. [Commercial]

An addon package for Java Swing including JSxToolBarPane, JSxCalendarPane, JSxDatePicker, JSxButton, JSxNumberTextField, JSxDateTextField, JSxMaskTextField.

Smart JPrint, a 100% Java printing and PDF generation API for any Swing/J2EE applications; Smart JSwing, a Java swing library with custom swing components; Smart JGraph, a Java graph library for workflow, relationship, complex data presentation.

A Swing component (JTable, JTextPane, JTree, ...) printing framework. It includes custom Page Setup, Print Preview, and Print dialogs, and the ability to preview and print any Java Swing GUI component. [Commercial]

A Java component for creating advanced, easy to use and polished calendaring applications and event/activity visualizations. Screen shots, evaluations and documents are available at the product site.

An open-source project rewriting the Java AWT classes. It is like Swing in that it doesn't use the underlying OS look and feel, but instead implements its own look and feel. [Open Source, GPL-like]

Pure Java UI framework for building both web and GUI applications. Inspired by the NeXT and OpenStep APIs and includes clean-room implementations of portions of the WebObjects and JavaClient frameworks. [Open Source, LGPL]