JFreeChart is a free (LGPL) chart library for the Java(tm) platform. It supports bar charts, pie charts, line charts, time series charts, scatter plots, histograms, simple Gantt charts, Pareto charts, bubble plots, dials, thermometers and more.
System Requirements
Sistema Operativo: All 32-bit MS Windows (95/98/NT/2000/XP/Vista/7), POSIX (Linux,BSD,Solaris etc..), BSD, OS Independent