A simple jfreechart sample

build.sbt

name := "First"

version := "0.9"

scalaVersion := "2.10.2"

libraryDependencies += "org.jfree" % "jfreechart" % "1.0.15"

First.scala

import org.jfree.chart.ChartFactory
import org.jfree.chart.ChartFrame
import org.jfree.chart.JFreeChart
import org.jfree.data.general.DefaultPieDataset

object First extends App {
  val data = new DefaultPieDataset
  List(("Category 1", 43.2), ("Category 2", 27.9), ("Category 3", 79.5)).
    foreach(e => data.setValue(e._1, e._2))
  val chart = ChartFactory.createPieChart("Simple Pie Chart",
      data, true, // legend
      true, // tooltips
      false) // URLs
  val frame = new ChartFrame("JFreeChart: First.java", chart)
  frame.pack()
  frame.setVisible(true)
}