Java InputStreamReader Read readFile(File file)

Description

read File

License

Open Source License

Declaration

public static String readFile(File file) throws FileNotFoundException, UnsupportedEncodingException 

Method Source Code

//package com.java2s;
/******************************************************************************
 * Product: OSeB http://code.google.com/p/oseb                                *
 * Copyright (C) 2012 Mario Grigioni                                          *
 * This program is free software; you can redistribute it and/or modify it    *
 * under the terms version 2 of the GNU General Public License as published   *
 * by the Free Software Foundation. This program is distributed in the hope   *
 * that it will be useful, but WITHOUT ANY WARRANTY; without even the implied *
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.           *
 * See the GNU General Public License for more details.                       *
 * You should have received a copy of the GNU General Public License along    *
 * with this program; if not, write to the Free Software Foundation, Inc.,    *
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.                     *
 *****************************************************************************/

import java.io.BufferedReader;

import java.io.File;
import java.io.FileInputStream;
import java.io.FileNotFoundException;

import java.io.IOException;
import java.io.InputStreamReader;

import java.io.UnsupportedEncodingException;

import java.util.ArrayList;

public class Main {
    /** ENCODING        */
    public static final String UTF8 = "UTF-8";

    /**// w  w w .  j  a va2  s  . com
     * readFile
     * Reads a file and return the lines into a string
     * @param  File
     * @return String dados
     * @throws FileNotFoundException
     * @throws UnsupportedEncodingException 
     */
    public static String readFile(File file, String encoding)
            throws FileNotFoundException, UnsupportedEncodingException {

        String[] array = readFile(file.toString(), encoding);
        StringBuilder dados = new StringBuilder();
        for (int i = 0; i < array.length; i++) {
            dados.append(array[i]);
        }

        return dados.toString();
    }

    public static String readFile(File file) throws FileNotFoundException, UnsupportedEncodingException {
        return readFile(file, UTF8);
    }

    /**
     * readFile
     * Reads a file and return the lines into a string array
     * @param  String FileName (FilePath)
     * @return String[] lines
     * @throws FileNotFoundException
     * @throws UnsupportedEncodingException 
     */
    public static String[] readFile(String FileName, String encoding)
            throws FileNotFoundException, UnsupportedEncodingException {

        ArrayList<String> list = new ArrayList<String>();

        FileInputStream stream = new FileInputStream(FileName);
        InputStreamReader streamReader = new InputStreamReader(stream, encoding);
        BufferedReader reader = new BufferedReader(streamReader);

        // Neste while lemos o arquivo linha a linha
        String line = null;
        try {
            while ((line = reader.readLine()) != null) {
                list.add(line);
            }
            reader.close();
            streamReader.close();
            stream.close();
        } catch (IOException e) {
            e.printStackTrace();
        } finally {
            reader = null;
            streamReader = null;
            stream = null;
        }

        String[] lines = new String[list.size()];
        list.toArray(lines);
        return lines;
    }

    public static String[] readFile(String FileName) throws FileNotFoundException, UnsupportedEncodingException {
        return readFile(FileName, UTF8);
    }
}

Related

1. readFile(File f)
2. readFile(File f)
3. readFile(File file)
4. readFile(File file)
5. readFile(File file)
6. readFile(File file)
7. readFile(File file)
8. readFile(File file)
9. readFile(File file)