?
Solved

Need a function that opens a file and stores it in a string array

Posted on 2004-09-07
6
Medium Priority
?
230 Views
Last Modified: 2010-03-31
Hi,
I need a function that will read a  csv file of this format:

9, ,1
8220,",1
8221,",1
190,3/4,2



and store it in a multidimension array like below

String[][] anArray = { {"9", " ", "1"},{"8220", "\"", "1"},{"8221", "\"", "1"},{"8216", "\'", "1"},{"8217", "\'", "1"},{"226", "a", "1"},{"188","1/4","2"},{"189","1/2","2"},{"190","3/4","2"},{"13"," ","3"}};



Thanks,
Arthur
0
Comment
Question by:vbguy
[X]
Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people just like you are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
  • 4
6 Comments
 
LVL 92

Expert Comment

by:objects
ID: 12001259
List lines = new ArrayList();
BufferedReader in = new BufferedReader(new FileReader(file));
String line = null;
while (null!=(line=in.readLine())
{
   String[] s = line.split(",");
   lines.add(s);
}
String[][] result = (String[][]) lines.toArray(new String[][0]);
0
 
LVL 92

Accepted Solution

by:
objects earned 1000 total points
ID: 12001335
sorry, that should be:

List lines = new ArrayList();
BufferedReader in = new BufferedReader(new FileReader("x.txt"));
String line = null;
while (null!=(line=in.readLine()))
{
   String[] s = line.split(",");
   lines.add(s);
}
String[][] result = (String[][]) lines.toArray(new String[0][]);
0
 

Author Comment

by:vbguy
ID: 12001584
Hi,

I have to use jdk 1.3,  is there something for the split method I could use?

Thanks,
Arthur
0
What does it mean to be "Always On"?

Is your cloud always on? With an Always On cloud you won't have to worry about downtime for maintenance or software application code updates, ensuring that your bottom line isn't affected.

 
LVL 92

Expert Comment

by:objects
ID: 12001619
Use StringTokenizer instead

0
 
LVL 92

Expert Comment

by:objects
ID: 12001629
StringTokenizer st = new StringTokenizer(line, ",");
String[] s = new String[st.countTokens()];
int index = 0;
while (st.hasMoreTokens())
{
   s[index++] = st.nextToken();
}
0
 
LVL 16

Expert Comment

by:suprapto45
ID: 12008461
Hi vbguy,

Try the following.... Some of my codes are derived from objects

import java.io.*;
import java.util.*;

public class MeowTest {
   
    public static void main(String[] args) {

      try
      {
            FileReader file = new FileReader ("dave.txt");
            BufferedReader in = new BufferedReader(file);
            String line = "";

            int counter = 0;

            while((line = in.readLine()) != null)
            {
                  StringTokenizer st = new StringTokenizer(line, ",");
                  String[][] s = new String[4][st.countTokens()];

                  int index = 0;
                  while (st.hasMoreTokens())
                  {
                           s[counter][index++] = st.nextToken();      
                  }

                  // Display Function
                  for(int i = 0; i < s[counter].length; i++)
                  {
                        System.out.println(s[counter][i]);
                  }
                  counter++;
            }
      }

      catch(Exception e)
      {
            e.printStackTrace();
      }
    }
   
}


I hope that helps...
0

Featured Post

Enroll in August's Course of the Month

August's CompTIA IT Fundamentals course includes 19 hours of basic computer principle modules and prepares you for the certification exam. It's free for Premium Members, Team Accounts, and Qualified Experts!

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

After being asked a question last year, I went into one of my moods where I did some research and code just for the fun and learning of it all.  Subsequently, from this journey, I put together this article on "Range Searching Using Visual Basic.NET …
Java Flight Recorder and Java Mission Control together create a complete tool chain to continuously collect low level and detailed runtime information enabling after-the-fact incident analysis. Java Flight Recorder is a profiling and event collectio…
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.
This theoretical tutorial explains exceptions, reasons for exceptions, different categories of exception and exception hierarchy.
Suggested Courses
Course of the Month14 days, 7 hours left to enroll

770 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question