import java.awt.*;
import java.awt.image.*;
import java.io.*;
import java.util.*;
//import src.javax.imageio.*;
//import src.javax.imageio.stream.*;
public class Graph
{
static private final int border =25;
private BufferedImage image;
private double data[];
private int width ,height;
static private final int gridWidth=12,gridHeight=10;
static private final
String months[]={
"Jan","Feb","March","Apr","ay","Jun","Jul","Aug","Sep","Oct","Nov","Dec"};
public Graph(double data[], int width,int height)
{
this.data=data;
this.width=width;
this.height=height;
}
private void generateImage()
{
image = new BufferedImage(width,height,BufferedImage.TYPE_INT_ARGB);
Graphics2D g2= image.createGraphics();
g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON);
GradientPaint paint= new GradientPaint(0,0,Color.white,width,height,Color.lightGray);
g2.setPaint(paint);
g2.fillRect(0,0,width-1,height-1);
g2.setPaint(Color.black);
BasicStroke veryThin= new BasicStroke(1,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
BasicStroke thin=new BasicStroke(3,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
BasicStroke thick = new BasicStroke(7,BasicStroke.CAP_ROUND,BasicStroke.JOIN_ROUND);
g2.setStroke(thin);
g2.setPaint(new Color(155,155,155));
for(int i=0;i<gridWidth;++i)
{
int x= border+(i*(width-2*border))/(gridWidth-1);
g2.drawLine(x,border,x, height-border);
}
for(int i=0; i<gridHeight;++i)
{
int y=border+(i*(width-2*border))/(gridHeight-1);
g2.drawLine(border,y,width-border,y);
}
g2.setStroke(thick);
g2.setPaint(Color.black);
for(int i=1; i<data.length;++i)
{
int x0= border +
(int)(((width-2*border)*(i-1))/(gridWidth-1));
int y0= border+
(int)(((width-2*border)*data[i-1])/(gridWidth-1));
int x1 = border+
(int)(((height-2*border)*i)/(gridWidth-1));
int y1=border+(int)(((height-2*border)*data[i])/(gridHeight-1));
y0=height-1-y0;
y1=height-1-y1;
g2.drawLine(x0,y0,x1,y1);
}
g2.setStroke(veryThin);
g2.setPaint(Color.darkGray);
Font font = new Font("Courier", Font.BOLD,12);
g2.setFont(font);
for(int i=0;i<12;++i)
{
String month=months[i];
FontMetrics fontMetrics = g2.getFontMetrics();
int stringWidth =fontMetrics.stringWidth(month);
int stringHeight=fontMetrics.getAscent();
int x=border+
(int)(((width +2*border)*(i))/(gridWidth-1))-stringWidth/2;
int y = height-border+stringHeight;
g2.drawString(month,x,y);
}
}
public void write(String filename)throws IOException{
if(image==null)
generateImage();
String suffix=filename.substring(filename.lastIndexOf('.')+1);
Iterator ImageWriters=ImageIO.getImageWritersBySuffix(suffix);
ImageWriter imageWriter=(ImageWriter)imageWriters.next();
if(imageWriter==null)
throw new RuntimeException("Format for"+filename+"not supported");
File file = new File(filename);
ImageOutputStream ios=ImageIO.createImageOutputStream(file);
imageWriter.setOutput(ios);
imageWriter.write(image);
}
static public void main(String args[])throws IOException{
double data0[]={4.2,4.3,5.3,6.5,9.0,8.5,0.2,0.4,1.3,4.3,2.6,7.8};
Graph graph0 = new Graph(data0,400,250);
graph0.write("graph0.png");
double data1[]={0,3.3,1.2,6.6,2.5,8.3,4.7,5,4.7,3.9,2.6,1.1};
Graph graph1= new Graph(data1,400,250);
graph1.write("graph1.png");
}
}
The above code does not produce class file on debugging/compilation? can you pl help
to make it executable.Thanks
C.R.Muthukumar
