package com.tutego.insel.solutions.lang;

import java.io.*;
import java.util.HashMap;
import java.util.StringTokenizer;

public class FrequenzLeser
{
  private static HashMap<String, Double> map = new HashMap<String, Double>();

  static
  {
    try
    {
      RandomAccessFile lesen = new RandomAccessFile("c:/freq.txt", "r");

      String zeile1, zeile2;

      while (true)
      {
        zeile1 = lesen.readLine();

        if (zeile1 == null)
          break;

        zeile2 = lesen.readLine();

        if (zeile2 == null)
          break;

        String freqString = new StringTokenizer(zeile2).nextToken().replace(',', '.');

        double freq = Double.parseDouble(freqString);

        map.put( zeile1, new Double(freq) );
        
        //  System.out.println(zeile1 + " : " + freq);
      }
    }
    catch (IOException e)
    {
      System.err.println("Fehler beim Dateizugriff");
    }
  }

  static double toFreq(String s)
  {
    Object o = map.get( s );
    
    return ((Double)o).doubleValue();
  }

  public static void main(String args[])
  {
    toFreq( "SWR 1" );
  }
}