Java InputStreamReader Read readfile(String filename)

Description

Read the contents of a file.

License

Open Source License

Parameter

Parameter	Description
filename	file to read, '-'|null => stdin.

Exception

Parameter	Description
IOException	an exception

Return

The contents of the file as a string

Declaration

static public String readfile(String filename) throws IOException 

Method Source Code

//package com.java2s;
/*/*from www .  j av a 2  s  .c  o  m*/
This software is released under the Licence terms
described in the file LICENSE.txt.
*/

import java.io.*;

public class Main {
    /**
     * Read the contents of a file.
     *
     * @param filename file to read, '-'|null => stdin.
     * @return The contents of the file as a string
     * @throws IOException
     */

    static public String readfile(String filename) throws IOException {
        InputStream input = null;
        if (filename == null)
            input = System.in;
        else
            input = new FileInputStream(filename);
        InputStreamReader rdr = new InputStreamReader(input, "UTF-8");
        int c = 0;
        StringBuilder buf = new StringBuilder();
        while ((c = rdr.read()) >= 0) {
            buf.append((char) c);
        }
        input.close();
        return buf.toString();
    }
}

Related

1. readFile(String fileName)
2. readFile(String fileName)
3. readFile(String fileName)
4. readFile(String fileName)
5. readFile(String fileName)
6. readFile(String filename, boolean addEOL)
7. readFile(String fileName, Class clazz)
8. readFile(String fileName, String characterEncoding)
9. readFile(String fileName, String characterEncoding)