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

@SuppressWarnings({ "rawtypes", "unchecked" })
public static List readLines(Reader input) throws IOException 

Method Source Code

//package com.java2s;

import java.io.BufferedReader;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;

import java.io.Reader;

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**//from   ww w . jav  a 2 s. c  o m
     * 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
     */
    @SuppressWarnings("rawtypes")
    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
     */
    @SuppressWarnings("rawtypes")
    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
     */
    @SuppressWarnings({ "rawtypes", "unchecked" })
    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(Reader in)
2. readLines(Reader in, boolean trim)
3. readLines(Reader input)
4. readLines(Reader input)
5. readLines(Reader input)
6. readLines(Reader input)
7. readLines(Reader input)
8. readLines(Reader input)
9. readLines(Reader input)