Java File to String readFileAsString(String filePath)

Description

Reads the specified file into a string

License

Open Source License

Parameter

Parameter	Description
filePath	the path to the file that should be read

Exception

Parameter	Description
IOException	an exception

Return

the content of the specified file as a string or an empty string if the file does not exist

Declaration

public static String readFileAsString(String filePath)
        throws IOException 

Method Source Code

//package com.java2s;
/* The MIT License (MIT)

 Copyright (c) 2012 Jerome Wagener//w w w .  j  ava  2s  . c om

 Permission is hereby granted, free of charge, to any person obtaining a copy of
 this software and associated documentation files (the "Software"), to deal in
 the Software without restriction, including without limitation the rights to
 use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 the Software, and to permit persons to whom the Software is furnished to do so,
 subject to the following conditions:

 The above copyright notice and this permission notice shall be included in all
 copies or substantial portions of the Software.

 THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.*/

import java.io.BufferedInputStream;

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

import java.io.IOException;

public class Main {
    /** Reads the specified file into a string
     * @param filePath the path to the file that should be read
     * @return the content of the specified file as a string or an empty string if the file does not exist 
     * @throws IOException */
    public static String readFileAsString(String filePath)
            throws IOException {
        File file = new File(filePath);
        if (!file.exists()) {
            return "";
        }

        byte[] buffer = new byte[(int) new File(filePath).length()];

        BufferedInputStream bufferedInputStream = new BufferedInputStream(
                new FileInputStream(filePath));
        bufferedInputStream.read(buffer);
        bufferedInputStream.close();

        return new String(buffer);
    }
}

Related

1. fileToStringBuffer(File file)
2. fileToStringList(File f)
3. fileToStringList(String filePath)
4. fileToStringOneLine(String path)
5. readFileAsString(String filePath)
6. readFileAsString(String filePath)
7. readFileAsString(String filePath)
8. readFileAsString(String filePath)
9. readFileAsString(String filePath)