Java BufferedReader Read loadRealDataGraphFromEmbers(String fileName, String splitter)

Description

load Real Data Graph From Embers

License

Open Source License

Declaration

public static HashMap<String, Double> loadRealDataGraphFromEmbers(String fileName, String splitter) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.io.*;

import java.util.*;

public class Main {
    public static HashMap<String, Double> loadRealDataGraphFromEmbers(String fileName, String splitter) {
        HashMap<String, Double> graph = new HashMap<String, Double>();
        BufferedReader br = null;
        try {/*from w  ww  . java  2 s  . c  o  m*/
            String sCurrentLine;
            br = new BufferedReader(new FileReader(fileName));
            while ((sCurrentLine = br.readLine()) != null) {
                String[] str = sCurrentLine.split(splitter);
                String edgeName = str[0];
                Double distance = Double.parseDouble(str[1]);
                graph.put(edgeName, distance);
            }
            if (!graph.isEmpty()) {
                System.out.println("total number of the graph edges is : " + graph.size());
            } else {
                System.out.println("there does not exist any information in the file!!");
                System.exit(0);
            }
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            try {
                if (br != null)
                    br.close();
            } catch (IOException ex) {
                ex.printStackTrace();
            }
        }
        return graph;
    }
}

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