The AsciiReader can read ascii data files : BufferedReader « File Input Output « Java






  1. Java
  2. File Input Output
  3. BufferedReader

The AsciiReader can read ascii data files

       
//package jsslib.util;

import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.text.SimpleDateFormat;
import java.util.Date;

/**
 *  The AsciiReader can read ascii data files
 *  @author Robert Schuster
 */
public class AsciiReader extends BufferedReader {

    public AsciiReader(String Filename) throws FileNotFoundException {
        super(new FileReader(Filename));
    }

    /**
     * Read a line of Text and parse it to the DataTypes in the Format Array
     * @param Format        an array of the types Float, Double, Intger, Long or Date
     *                      the default date-format is dd.MM.yy
     * @param delimiter
     * @return              null if the end of the file is reached
     */
    public Object[] ReadLine(Object[] Format, String delimiter) {
        Object[] result = new Object[Format.length];
        try {
            //read a line from the file
            String line = this.readLine();
            if (line == null) return null;
            //Split the String
            String[] words = line.split(delimiter);
            //loop over each element in the result array
            for (int i=0;i<Format.length;i++) {
                if (Format[i].getClass() == Float.class) result[i] = Float.parseFloat(words[i]);
                else if (Format[i].getClass() == Double.class) result[i] = Double.parseDouble(words[i]);
                else if (Format[i].getClass() == Integer.class) result[i] = Integer.parseInt(words[i]);
                else if (Format[i].getClass() == Long.class) result[i] = Long.parseLong(words[i]);
                else if (Format[i].getClass() == Date.class) {
                    SimpleDateFormat sd = new SimpleDateFormat("dd.MM.yy");
                    result[i] = sd.parse(words[i]);
                }
            }
        } catch (Exception ex) {
            ex.printStackTrace();
            return null;
        }
        return result;
    }


}








Related examples in the same category

1.Create BufferedReader from System.in
2.Create BufferedReader from InputStreamReader
3.Create BufferedReader from StringReader
4.Create BufferedReader out of FileReader
5.Create BufferedReader from URL
6.Create BufferedReader from FileReader and Read / display lines from file
7.Create BufferedReader from InputStreamReader and System.in, read console input
8.Use BufferedReader to Read and process lines from console
9.Tab filter: Convert tab to space characters
10.List of lines in a file with BufferedReader
11.Use BufferedReader to read line by line
12.A simple FilterReader that strips HTML tags out of a stream of characters
13.Using BufferedReader to read input number from user
14.Read lines of text from a file with the BufferedReader class
15.Read from a file using a BufferedReader
16.Read each line in a comma separated file into an array
17.Read content of a file
18.Reading Text from a File
19.Read a text file
20.Call the static method PressAnykey to keep to "DOS" window open.
21.A standalone program that reads a list of classes and builds a database of packages, classes, and class fields and methods
22.ReadLines: read file to list of strings
23.Count the number of lines in the buffer