<%@page contentType="text/html" pageEncoding="UTF-8"%>
<%@ taglib uri="http://java.sun.com/jsp/jstl/core" prefix="c"%>
<%@ page import="java.awt.*" %>
<%@ page import="java.io.*" %>
<%@ page import="java.util.Random" %>
<%@ page import="org.jfree.chart.ChartFactory" %>
<%@ page import="org.jfree.chart.ChartPanel" %>
<%@ page import="org.jfree.chart.JFreeChart" %>
<%@ page import="org.jfree.chart.ChartUtilities" %>
<%@ page import="org.jfree.data.statistics.HistogramDataset" %>
<%@ page import="org.jfree.data.statistics.HistogramType" %>
<%@ page import="org.jfree.chart.plot.PlotOrientation;" %>
<%
double[] val = new double[10];
%>
${total}
<%
double[] value = new double[10];
out.println("{sum}");
for (int i=1; i < 10; i++) {
value[i] = i;
int number = 5;
HistogramDataset dataset = new HistogramDataset();
dataset.setType(HistogramType.RELATIVE_FREQUENCY);
dataset.addSeries("Histogram",value,number);
String plotTitle = "Histogram";
String xaxis = "number";
String yaxis = "value";
PlotOrientation orientation = PlotOrientation.VERTICAL;
boolean show = false;
boolean toolTips = false;
boolean urls = false;
JFreeChart chart = ChartFactory.createHistogram( plotTitle, xaxis, yaxis,
dataset, orientation, show, toolTips, urls);
int width = 800;
int height = 500;
try {
File file1=new File("histogram2.jpg");
ChartUtilities.saveChartAsJPEG(file1, chart, width, height);
} catch (IOException e) {}
}
%>
