FileRead.java

.gitignore

*.class

distance.txt

BH  0    472   281   315   511 -   -   435 544 483
PC  472  0     443   827   -   -   -   -   -   677
JF  281  443   0     453   -   -   -   -   -   -
GV  315  827   453   0     -   486 -   -   -   -
PA  511  -     -     -     0   -   -   466 319 -
SL  -    -     -     486   -   0   -   222 -   -
JN  -    -     -     -     -   -   0   138 -   -
MC  435  -     -     -     466 222 138 0   629 -
UL  544  -     -     -     319 -   -   629 0   107

file_read.rb

require 'pp'

cities = {}

File.open(File.dirname(__FILE__) + "/distance.txt").readlines.each_with_index do |line, index|
  columns = line.split(/\s+/)
  cities[columns.shift] = {
    :index => index,
    :distance => columns.map { |c| c =~ /\-/ ? nil : c.to_i }
  }
end

pp cities

FileRead.java

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

class FileRead {
    public static void main(String args[]) {
        try {
            
            FileInputStream file_stream = new FileInputStream("distance.txt");
            DataInputStream input_stream = new DataInputStream(file_stream);
            BufferedReader buffer = new BufferedReader(new InputStreamReader(input_stream));
            
            String line;
            Hashtable cities = new Hashtable();

            while((line = buffer.readLine()) != null) {                
                String[] splitted_points = line.split(" ");
                
                for(int i = 1; i < 10; i++)
                    cities.put(splitted_points[0], splitted_points[i]);
                
            }
            
            input_stream.close();
            
            String[] points = cities.get("BH");
            
            for(int j = 0; j < points.length; j++)
                System.out.println("Distance: " + cities.get("BH"));

            
        } catch (Exception e) {
            System.err.println("Error: " + e.getMessage());
        }
    }
}