JFreeChart is a chart library for the Java platform that supports a wide range of charts including pie charts (2D and 3D), bar charts (horizontal and vertical, regular or stacked, with optional 3D-effects), line charts, XY plots, scatter plots, time series charts, high/low/open/close charts, candlestick plots, Gantt charts, Pareto charts, combination charts, and more. It is suitable for use in applications, applets, servlets, and JSP.
jCharts is 100% pure Java charting package intended for Web and standalone applications. It supports a wide variety of charting types such as Area, Bar, Combo, Line, Pie 2D, Pie 3D, Point, Radar and XY Plot. jCharts can export charts to PNG, JPEG or SVG formats.
For Web applications, jCharts supports direct streaming of the chart images.
VisualVM, Java's own monitoring, profiling and performance analysis tool.
Even though many monitoring and diagnostics features are enhanced and introduced in Java 6, still it has been lacking an out-of-the-box bundling of a convincing visual Java application monitoring or profiling tool, until the most recent JDK6 Update 7.
VisualVM is an open source tool for monitoring and profiling your java application. VisualVM is now integrated with JDK 6 update 7 release. So, from now on you need not pay a hefty price for licensing third party profilers. In this article we'll walk through the features of VisualVM and see how it is different from commercial profiling tools.
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Invoking Win32 API and Activex Components (Com dlls) from Java
In the second part of this series we shall see some more libraries that all you to use Win32 APIs and Com components from you java application without writing any native code.
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Java is a platform independent programming language and hence does not come with built in support to directly invoke API services provided by the operating system. However, several free and commercial libraries that allow programmers to invoke Win32 API without writing any native code (The libraries will contain all the needed native code).
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