Painting graph from loop?

Question

* I am having a hard time trying to figure out why this is not working
* the input file is single line entries (these numbers are from the file and the format)
* 1
* 891.67
* 1968.12
* 198031.88
* 2859.79
* 200000
* 5.35
* nl
* 2
* 882.89
* 1976.9
* 196054.98
* 2859.79
* 200000
* 5.35
* nl
* 3 and so on, depending on what the other program is writing.
* could someone please tell me why this is not painting as I expected it should?
* right now it only paints the grid hash marks. What did I do wrong?
import java.awt.*;
import java.awt.event.*;
import java.awt.geom.*;
import java.io.*;
import javax.swing.JOptionPane;
public class graph extends Frame
     Line2D lineu = new Line2D.Double(20, 40, 20, 300);
     Line2D linel = new Line2D.Double(370, 300, 20,300);
     Stroke drawingStroke = new BasicStroke(2);
     public static String[] aa;
     public void paint(Graphics y)
          Graphics2D graph1 = (Graphics2D)y;
     graph1.setStroke(drawingStroke);
     graph1.setPaint(Color.black);
     graph1.draw(lineu);
     graph1.setPaint(Color.black);
     graph1.draw(linel);
     for(int x = 20; x < 370; x++)
          Line2D hash = new Line2D.Double(x, 300, x, 305);
          graph1.draw(hash);
          x = x + 5;
     for(int x = 45; x < 300; x++)
          graph1.setPaint(Color.black);
          Line2D hash2 = new Line2D.Double(15, x, 20, x);
          graph1.draw(hash2);
          x = x + 5;
     try
               File file = new File("temp.sto");
               FileInputStream FIS = new FileInputStream(file);
               BufferedReader BR = new BufferedReader(new InputStreamReader(FIS));
               aa = new String[3];
               for (int i = 0; i < aa.length; i++)
                    aa[i] = BR.readLine();
               for (int j = 0; j < aa.length; j++)
                         int month = Integer.parseInt(aa[j]);
                         int monthI = Integer.parseInt(aa[j+1]);
                         int monthPrin = Integer.parseInt(aa[j+2]);
                         int amtlft = Integer.parseInt(aa[j+3]);
                         int monthp = Integer.parseInt(aa[j+4]);
                         int totloan = Integer.parseInt(aa[j+5]);
                         int intval = Integer.parseInt(aa[j+6]);
                         System.out.println(aa[j]);
                              graph1.setPaint(Color.red);
                              Line2D monthID = new Line2D.Double(month+20, monthI, month+20, monthI + 5);
                         graph1.draw(monthID);
                         graph1.drawString("Monthly Interest", 50, 50);
                         graph1.setPaint(Color.green);
                              Line2D monthPrinD = new Line2D.Double(month+20, monthPrin, month+20, monthPrin + 5);
                              graph1.draw(monthPrinD);
                              graph1.drawString("Monthly Principle", 50, 60);
                              graph1.setPaint(Color.red);
                              Line2D amtlftD = new Line2D.Double(month+20, amtlft, month+20, amtlft + 5);
                              graph1.draw(amtlftD);
                              graph1.drawString("Amount Left", 50, 70);
                              graph1.setPaint(Color.black);
                              graph1.drawString("The full loan of " + totloan + " with " + intval + "% interest", 50, 80);
                              graph1.drawString("has a monthly payment of " + monthp, 50, 90);
                         j = j + 6;
                         if (aa[j+8]=="zzz" || aa[j+8] == "")
                              j=100000000;
     }catch (FileNotFoundException e)
               JOptionPane.showMessageDialog(null, "The file is not where you think it is. I can not continue.");
               System.exit(0);
          }catch (Exception e)
     public static void main(String args[])
          Frame frame = new graph();
     frame.addWindowListener(new WindowAdapter()
     public void windowClosing(WindowEvent we)
          System.exit(0);
     frame.setSize(400, 400);
     frame.setVisible(true);
}

Answer 1

Please post code in code tags and indent it properly.