JAVA Read an input CSV file containing addresses using a Scanner object. Don\'t

Question

JAVA

Read an input CSV file containing addresses using a Scanner object. Don't redirect from stdin, read directly from the file. Here are two sample lines from a mailing list:

link for CSV file

http://www.filedropper.com/addresses_1

Obtain the input file using a JFileChooser dialog. See the UseFileChooser Example in the input-output examples file.

Here is example file

https://gist.github.com/c675546507c3881f93b6a3ec970f77aa

https://gist.github.com/3e7611603dcc9319bd524f25f24f65d7

For each line write out an address like this to the output file labels.txt:

The bar code is encoded using this table:

In addition to encoding the 9 digits of the zip code, the bar code includes initial (i) and terminal (t) frame bars and a check sum (cs), which is 10 - the sum of the zip code digits mod 10. Thus the zip code 38141-8346 is encoded like this:

The sum of the digits is 38 and 38 % 10 is 8, so the check sum is 10 - 8 = 2. The initial and terminal frame bars are always |.

Note: If the sum of the digit % 10 is 0, the check sum is 10 - 0 = 10, which should be replaced by 0. This can be done with an if statement, or with

See this article for more details:

http://en.wikipedia.org/wiki/POSTNET

Write and use this method:

Explanation / Answer

import java.io.*;

public class FileCopy
{
   //This method has reusable code, so not handling exception.
   public static void copyFile(String srcFile, String destFile)throws FileNotFoundException, IOException
   {
           FileInputStream        fis = new FileInputStream(srcFile);
           FileOutputStream   fos = new FileOutputStream(destFile);

           int i;
           while( ( i = fis.read() ) != -1)
           {
               fos.write(i);
           }

           System.out.println("Data has written");
   }
}
class Test
{
   public static void main(String[] args)
   {
       //It is user application, so it must handled exceptions to print user understandable exception messages
      
       try
       {  
           FileCopy.copyFile(args[0], args[1]);
       }
       catch(ArrayIndexOutOfBoundsException aeiob)
       {
           System.out.println("Error: Please pass source and destination file names");
           System.out.println("Usage: java Test abc.txt bbc.txt");
       }
       catch(FileNotFoundException fnfe)
       {
           System.out.println("Error: The given files "+ args[0] +" , " + args[1] + " are not found, make sure they are avilable in the current path");
       }
       catch(IOException ioe)
       {
           System.out.println("Error: Reading or writting failed");
           e.printStackTrace();
       }
   }
}

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