Chart generation library: JFreeChart

JFreeChart is a free Java class library for generating charts, including:

• Pie charts (2D and 3D);
• Bar charts (regular and stacked, with an optional 3D effect);
• Line and area charts;
• Scatter plots and bubble charts;
• Time series, high/low/open/close charts and candle stick charts;
• Combination charts;
• Pareto charts;
• Gantt charts;
• Wind plots, meter charts and symbol charts;
• Wafer map charts;