Java Reader Read Line readLines(Reader input)

Description

Get the contents of a Reader as a list of Strings, one entry per line.

License

Open Source License

Parameter

Parameter	Description
input	the <code>Reader</code> to read from, not null

Exception

Parameter	Description
NullPointerException	if the input is null
IOException	if an I/O error occurs

Return

the list of Strings, never null

Declaration

public static List readLines(Reader input) throws IOException 

Method Source Code

//package com.java2s;
/**/*  www  .  j av  a 2s. com*/
 * Copyright (C) 2016 LibRec
 * <p>
 * This file is part of LibRec.
 * LibRec is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * <p>
 * LibRec 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.
 * <p>
 * You should have received a copy of the GNU General Public License
 * along with LibRec. If not, see <http://www.gnu.org/licenses/>.
 */

import java.io.*;
import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * Get the contents of an <code>InputStream</code> as a list of Strings,
     * one entry per line, using the default character encoding of the platform.
     * <p>
     * This method buffers the input internally, so there is no need to use a
     * <code>BufferedInputStream</code>.
     *
     * @param input the <code>InputStream</code> to read from, not null
     * @return the list of Strings, never null
     * @throws NullPointerException if the input is null
     * @throws IOException          if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List readLines(InputStream input) throws IOException {
        InputStreamReader reader = new InputStreamReader(input);
        return readLines(reader);
    }

    /**
     * Get the contents of an <code>InputStream</code> as a list of Strings,
     * one entry per line, using the specified character encoding.
     * <p>
     * Character encoding names can be found at
     * <a href="http://www.iana.org/assignments/character-sets">IANA</a>.
     * <p>
     * This method buffers the input internally, so there is no need to use a
     * <code>BufferedInputStream</code>.
     *
     * @param input    the <code>InputStream</code> to read from, not null
     * @param encoding the encoding to use, null means platform default
     * @return the list of Strings, never null
     * @throws NullPointerException if the input is null
     * @throws IOException          if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List readLines(InputStream input, String encoding) throws IOException {
        if (encoding == null) {
            return readLines(input);
        } else {
            InputStreamReader reader = new InputStreamReader(input, encoding);
            return readLines(reader);
        }
    }

    /**
     * Get the contents of a <code>Reader</code> as a list of Strings,
     * one entry per line.
     * <p>
     * This method buffers the input internally, so there is no need to use a
     * <code>BufferedReader</code>.
     *
     * @param input the <code>Reader</code> to read from, not null
     * @return the list of Strings, never null
     * @throws NullPointerException if the input is null
     * @throws IOException          if an I/O error occurs
     * @since Commons IO 1.1
     */
    public static List readLines(Reader input) throws IOException {
        BufferedReader reader = new BufferedReader(input);
        List list = new ArrayList();
        String line = reader.readLine();
        while (line != null) {
            list.add(line);
            line = reader.readLine();
        }
        return list;
    }
}

Related

1. readLines(BufferedReader reader)
2. readLines(final BufferedReader aReader)
3. readLines(final Reader input)
4. readLines(Reader in)
5. readLines(Reader in, boolean trim)
6. readLines(Reader input)
7. readLines(Reader input)
8. readLines(Reader input)
9. readLines(Reader input)