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reading files

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John

Posts: 1
Nickname: jdkbeginer
Registered: Jul, 2003

reading files

Posted: Jul 12, 2003 7:19 AM

Can anyone please analyze my code and explain what is wrong with it cause the out of bounds error keeps showing and I cant understand what is wrong with my code? Pls. help asap thanks.

The code is (I'm using JCreator Pro and Jdk 2.4):

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.io.*;

public class files
{
public int[][] arrjobs = new int[100][100];
public int jobtotal;
public char cCheck;
public int nChar;
public String sChar;

public files()
{
loadfile();
}

public void loadfile()
{
int i,j,bCheck;
String sTmp;
i=0;
j=0;

JFileChooser fileChooser = new JFileChooser();

int result = fileChooser.showOpenDialog( null );

fileChooser.setFileSelectionMode( JFileChooser.FILES_ONLY );

if ( result == JFileChooser.CANCEL_OPTION )
return;

File fileName = fileChooser.getSelectedFile();

if ( fileName == null || fileName.getName().equals("") )
JOptionPane.showMessageDialog( null, "Invalid File Name", "File Not Found", JOptionPane.ERROR_MESSAGE );
else
{
try
{
RandomAccessFile file = new RandomAccessFile(fileName , "r");
sTmp = "";
sChar = file.readLine();
nChar = Integer.parseInt(sChar);
jobtotal = nChar;

for(i=0;i<jobtotal;i++)
{ System.out.println("job num:"+(i+1));
sChar = file.readLine();

System.out.println("length: "+sChar.length());

j=0; bCheck=0;
while(j<sChar.length() && bCheck!=1)
{
while(sChar.charAt(j)!=' ' && sChar.charAt(j)!='\n' && sChar.charAt(j)!='\r' && j<sChar.length())
{

sTmp = sTmp + String.valueOf(sChar.charAt(j));
System.out.println("Counter: "+j);

j++;
}
if(!sTmp.equals(""))
{
arrjobs[j]= Integer.parseInt(sTmp);
System.out.println("Array val: "+arrjobs[j]);
sTmp = "";
}
System.out.println("Counter2: "+j);

j++;
System.out.println("Counter3: "+j);
if(j>=21)
bCheck=1;
}

}
System.out.println("Total No. of Jobs: "+jobtotal);
JOptionPane.showMessageDialog( null, "Jobs Loaded.", "Load Jobs", JOptionPane.PLAIN_MESSAGE);
}
catch ( IOException ex )
{
JOptionPane.showMessageDialog( null, "File does not exist"+ex , "Invalid File Name", JOptionPane.ERROR_MESSAGE );
}
}
}

public static void main(String args[])
{ int i=0,j=0;
System.out.println("opening filechooser");
files loader = new files();
}
}

The sample data I used is:
4
2 3 10 3 8 23 14 35 9
7 1 20 4 16 3 13 6 10 2 3
7 0 15 1 13
12 1 8 2 12 28 8

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