Java InputStreamReader Read readFile(String file)

Description

Get a String representation of a text file

License

Apache License

Parameter

Parameter	Description
file	text file name

Exception

Parameter	Description
IOException	@see Reader#read(char[],int,int)

Return

String representation

Declaration

public static String readFile(String file) throws IOException 

Method Source Code

//package com.java2s;
/*/* w  w w .j a  va  2s.com*/
 * Copyright 2011 cruxframework.org.
 * 
 * Licensed under the Apache License, Version 2.0 (the "License"); you may not
 * use this file except in compliance with the License. You may obtain a copy of
 * the License at
 * 
 * http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
 * WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 * License for the specific language governing permissions and limitations under
 * the License.
 */

import java.io.BufferedReader;

import java.io.FileInputStream;

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

public class Main {
    private static final int READ_BUFFER = 8192;

    /**
     * Get a String representation of a text file
     * 
     * @param file text file name
     * @return String representation
     * @throws IOException @see {@link Reader#read(char[], int, int)}
     */
    public static String readFile(String file) throws IOException {
        FileInputStream stream = new FileInputStream(file);
        try {
            return readFile(stream);
        } finally {
            stream.close();
        }
    }

    /**
     * Get a String representation of a text file
     * 
     * @param file text file
     * @return String representation
     * @throws IOException @see {@link Reader#read(char[], int, int)}
     */
    public static String readFile(FileInputStream stream) throws IOException {
        try {
            Reader reader = new BufferedReader(new InputStreamReader(stream));
            StringBuilder builder = new StringBuilder();
            char[] buffer = new char[READ_BUFFER];
            int read;
            while ((read = reader.read(buffer, 0, buffer.length)) > 0) {
                builder.append(buffer, 0, read);
            }
            return builder.toString();
        } finally {
            stream.close();
        }
    }
}

Related

1. readFile(Reader simpleReader)
2. readFile(String aFile)
3. readFile(String f)
4. readFile(String f, String delim)
5. readFile(String file)
6. readFile(String file)
7. readFile(String file)
8. readFile(String file)
9. readFile(String file)