Java Text File Read fileAsString(String fileName)

Description

Returns the contents of the specified file as a string.

License

BSD License

Parameter

Parameter	Description
fileName	The fully qualified file name.

Return

The contents of the file as a string. Returns null if there was an error reading the file.

Declaration

public static String fileAsString(String fileName) 

Method Source Code

//package com.java2s;
/**/*  ww  w . j a va 2s .c o m*/
 * New BSD License
 * http://www.opensource.org/licenses/bsd-license.php
 * Copyright 2009-2011 RaptorProject (http://code.google.com/p/raptor-chess-interface/)
 * All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
 *
 * Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
 * Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
 * Neither the name of the RaptorProject nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission.
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

import java.io.BufferedReader;
import java.io.File;

import java.io.FileReader;
import java.io.IOException;

public class Main {
    /**
     * Returns the contents of the specified file as a string.
     * 
     * @param fileName
     *            The fully qualified file name.
     * @return The contents of the file as a string. Returns null if there was
     *         an error reading the file.
     */
    public static String fileAsString(String fileName) {
        File f = null;
        BufferedReader reader = null;
        try {
            f = new File(fileName);

            reader = new BufferedReader(new FileReader(f));
            StringBuilder result = new StringBuilder(10000);
            String line = null;
            while ((line = reader.readLine()) != null) {
                result.append(line + "\n");
            }
            return result.toString();
        } catch (IOException e) {
            throw new RuntimeException("Error reading file: " + f.getAbsolutePath(), e);
        } finally {
            try {
                reader.close();
            } catch (Throwable t) {
            }
        }
    }
}

Related

1. fileAsString(File file)
2. fileAsString(String filePath)
3. fileContentsToString(File errFile)
4. fileContentsToString(String file)
5. getChars(File file)