Java ByteArrayOutputStream Read Line readLine(InputStream in)

Description

read one line.

License

MIT License

Declaration

public static String readLine(InputStream in) throws IOException 

Method Source Code

//package com.java2s;
/* Copyright(c) 2013 M Hata
   This software is released under the MIT License.
   http://opensource.org/licenses/mit-license.php */

import java.io.InputStream;
import java.io.OutputStream;
import java.io.ByteArrayOutputStream;
import java.io.IOException;
import java.io.Reader;

public class Main {
    /**/*from   w  w  w  . j a  v a 2s.c om*/
     * read one line.
     */
    public static String readLine(InputStream in) throws IOException {
        ByteArrayOutputStream sb = new ByteArrayOutputStream();
        while (true) {
            int c = in.read();
            if (c < 0) {
                if (sb.size() == 0) {
                    return null; //end
                }
                break;
            } else if (c == '\r') {
            } else if (c == '\n') {
                break;
            } else {
                sb.write(c);
            }
        }
        return sb.toString();
    }

    /**
     * read one line.
     */
    public static String readLine(Reader in) throws IOException {
        StringBuilder sb = new StringBuilder();
        while (true) {
            int c = in.read();
            if (c < 0) {
                if (sb.toString().equals("")) {
                    return null; //end
                }
                break;
            } else if (c == '\r') {
            } else if (c == '\n') {
                break;
            } else {
                sb.append((char) c);
            }
        }
        return sb.toString();
    }

    public static void write(OutputStream out, String str) throws IOException {
        out.write(str.getBytes());
    }
}

Related

1. readLine()
2. readLine(final InputStream in)
3. readLine(InputStream in)
4. readLine(InputStream in)
5. readLine(InputStream in)
6. readLine(InputStream in)