Code télégram

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.IOException;
import java.util.StringTokenizer;

/*
 * Created on Dec 19, 2005
 *
 */

/**
 * @author Fery.P
 *
 */
public class Telegram {
	public static final int MAX_CHAR_PER_LINE = 80;
	public static final int MAX_CHAR_PER_WORD = 12;

	private int wordsCount;
	private StringBuffer text;
	private StringBuffer currentLine;
	private BufferedReader reader;

	public Telegram(String fileName) throws TelegException {
		super();
		wordsCount = 0;
		text = new StringBuffer();
		try {
			parseFile(fileName);
		} catch (IOException e) {
			throw new TelegException(TelegException.EXC_CANNOT_OPEN_FILE);
		} finally {
			try {
				reader.close();
			} catch (Exception e) {
				e.printStackTrace();
			}
		}
	}

	private void parseFile(String fileName) throws IOException {
		reader = new BufferedReader(new FileReader(fileName));
		StringTokenizer tok = null;
		String line = "";
		String wordTemp = "";
		currentLine = new StringBuffer();

		while ((line = reader.readLine()) != null) {
			System.out.println(line);
			tok = new StringTokenizer(line, " ");
			while (tok.hasMoreElements()) {
				String word = (String)tok.nextElement();
				while (word.length() > MAX_CHAR_PER_WORD) {
					wordTemp = word.substring(0, MAX_CHAR_PER_WORD);
					append(wordTemp);
					word = word.substring(MAX_CHAR_PER_WORD);
				}
				append(word);
			}

		}
	}

	private void append(String word6char) {
		int calculatedLineLength = currentLine.length() + word6char.length();
		if (calculatedLineLength > MAX_CHAR_PER_LINE) {
			int diff = calculatedLineLength - MAX_CHAR_PER_LINE;
			currentLine.append(word6char.substring(0, word6char.length() - diff)).append("\n\r");
			wordsCount++;
			text.append(currentLine);
			currentLine.delete(0, currentLine.length());
			currentLine.append(word6char.substring(word6char.length() - diff)).append(" ");
			wordsCount++;
		} else if (calculatedLineLength == MAX_CHAR_PER_LINE) {
			currentLine.append(word6char).append("\n\r");
			text.append(currentLine);
			wordsCount++;
			currentLine.delete(0, currentLine.length());
		} else {
			currentLine.append(word6char).append(" ");
			wordsCount++;
		}

	}

	class TelegException extends Exception {
		public static final String EXC_CANNOT_OPEN_FILE = "Impossible d'ouvrir le fichier";
		public static final String EXC_DEFAULT_MESSAGE = "Un problème indéterminé est survenu";
		private String msg;

		public TelegException() {
			this(EXC_DEFAULT_MESSAGE);
		}

		public TelegException(String msg) {
			this.msg = msg;
		}

		public String getMessage() {
			return msg;
		}
	}

	private String getText() {
		return text.toString();
	}

	public int getWordsCount() {
		return wordsCount;
	}


	public static void main(String[] args) {
		try {
			String filePath = "d:/teleg.txt";
			Telegram tel = new Telegram(filePath);
			System.out.println("Le fichier '"+filePath+"' contient "+tel.getWordsCount()+" mots");
			System.out.println(tel.getText());
		} catch (TelegException e) {
			e.printStackTrace();
		}
	}
}