import java.applet.Applet;
import java.awt.*;
import java.net.*;
import java.util.*;
import java.io.*;

public class JChartApplet extends Applet
{
  int width,height,inwidth,inheight,inposx,inposy,labelfontsize,titlefontsize;
  int barsize,show_extremes,axisfontsize,ncolumns,printvalues,labelserie;
  int minyatzero;
  String labelfont,titlefont,title,xaxis,yaxis,axisfont;
  Color labelcolor,axiscolor,linecolor[],titlecolor,bgcolor;
  JChart canv;
  URL conn;

  int getintparam(String l,int def)
    {
      String result;
      Integer t;
      result=getParameter(l);
      if (result!=null)
         return new Integer(result).intValue();
      else
        return def;
    }

  String getstringparam(String l,String def)
    {
      String result;
      Integer t;
      result=getParameter(l);
      if (result!=null)
        return result;
      else
        return def;
    }

  Color getcolorparam(String l,Color def)
    {
      String result;
      Integer t;
      result=getParameter(l);
      if (result!=null)
        {
          Color c;
          if (result.substring(0,1).equals("#"))
            c=new Color(Integer.valueOf(result.substring(1,7),16).intValue());
          else
            c=Color.getColor(result);
          if(c==null)
            {
              System.out.println("Warning: can't make sense of color "+result);
              return def;
            }
          else
            return c;
        }
      else
        return def;
    }

  public void start()
    {
      Integer t;
      InputStream is;
      DataInputStream dis;
      String result,dataurl,type,r;
      showStatus("Initialization...");
      width=getintparam("WIDTH",500);
      height=getintparam("HEIGHT",500);
      resize(width,height);
      ncolumns=getintparam("NCOLUMNS",1);
      dataurl=getParameter("DATA");
      is=null;
      conn=null;
      try {conn=new URL(dataurl);} catch(MalformedURLException exc) {
        System.out.println("Data are not (no longer) available");}
      title=getParameter("TITLE");
      if(title!=null)
        {
          titlefont=getstringparam("TITLEFONT","System");
          titlefontsize=getintparam("TITLEFONTSIZE",10);
        }
      else
        titlefontsize=0;
      titlecolor=getcolorparam("TITLECOLOR",Color.black);
      axiscolor=getcolorparam("AXISCOLOR",Color.blue);
      labelcolor=getcolorparam("LABELCOLOR",Color.blue);
      bgcolor=getcolorparam("BGCOLOR",Color.white);
      type=getParameter("TYPE");
      if(type.equalsIgnoreCase("PIE"))
        {
          linecolor=new Color[3];
          linecolor[0]=getcolorparam("LINECOLOR1",Color.cyan);
          linecolor[1]=getcolorparam("LINECOLOR2",Color.yellow);
          linecolor[2]=getcolorparam("LINECOLOR3",Color.magenta);
        }
      else
        {
          linecolor=new Color[ncolumns];
          if(ncolumns==1)
            linecolor[0]=getcolorparam("LINECOLOR",Color.blue);
          else
            {
              int i;
              for(i=0; i!=ncolumns; i++)
                {
                  String s;
                  s="LINECOLOR"+(new Integer(i+1).toString());
                  linecolor[i]=getcolorparam(s,Color.blue);
                }
            }
        }
      xaxis=getParameter("XAXIS");
      yaxis=getParameter("YAXIS");
      show_extremes=getintparam("SHOW_EXTREMES",1);
      if((yaxis!=null) || (xaxis!=null) || (show_extremes!=0))
        {
          axisfont=getstringparam("AXISFONT","System");
          axisfontsize=getintparam("AXISFONTSIZE",10);
        }
      else
        axisfontsize=0;
      minyatzero=getintparam("MINYATZERO",1);
      inposx=getintparam("INPOSX",10);
      inposy=getintparam("INPOSY",10+titlefontsize);
      inwidth=getintparam("INWIDTH",width-20);
      inheight=getintparam("INHEIGHT",height-10-inposy-axisfontsize);
      labelfont=getstringparam("LABELFONT","System");
      labelfontsize=getintparam("LABELFONTSIZE",10);
      labelserie=getintparam("LABELSERIE",0);
      barsize=getintparam("BARSIZE",0);
      printvalues=getintparam("PRINTVALUES",1);
      setLayout(new BorderLayout());
      canv=new JChart(conn,ncolumns,title,inwidth,inheight,inposx,inposy,inposx,inposy,
                      type,xaxis,yaxis,new Font(labelfont,Font.PLAIN,labelfontsize),
                      new Font(titlefont,Font.PLAIN,titlefontsize),
                      new Font(axisfont,Font.PLAIN,axisfontsize),
                      barsize,labelserie,printvalues,minyatzero,bgcolor,axiscolor,
                      labelcolor,linecolor,show_extremes>0,show_extremes>0);
      add("West",canv); 
      showStatus("JChartApplet running");
    }

  public void paint(Graphics g)
    {
      canv.repaint();
    }

  public void destroy()
    {
      canv=null;
    }

  public void init()
    {
      /* non fa nulla perche'pensa a tutto la start */
    }

}

JChartApplet.java:15:找不到符号
符号：类 JChart