Java Reader Read Line readLines(Reader input)

Description

read Lines

License

Apache License

Declaration

public static List readLines(Reader input) throws IOException

Method Source Code

//package com.java2s;
/*//from www  . ja  v  a  2  s.c om
 * Copyright 2014 Hyberbin.
 *
 * 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.
 * Email:hyberbin@qq.com
 */

import java.io.BufferedReader;
import java.io.File;

import java.io.FileInputStream;

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

import java.io.Reader;

import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * <p>
     * Reads the contents of a file line by line to a List of Strings.
     * </p>
     * <p>
     * There is no readLines method without encoding parameter because the
     * default encoding can differ between platforms and therefore results in
     * inconsistent results.
     * </p>
     *
     * @param file the file to read
     * @param encoding the encoding to use, null means platform default
     * @return the list of Strings representing each line in the file
     * @throws IOException in case of an I/O error
     * @throws UnsupportedEncodingException if the encoding is not supported by
     * the VM
     * @since Commons IO 1.1
     */
    public static List readLines(File file, String encoding) throws IOException {
        InputStream in = new FileInputStream(file);
        try {
            return readLines(in, encoding);
        } finally {
            closeQuietly(in);
        }
    }

    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);
        }
    }

    public static List readLines(InputStream input) throws IOException {
        InputStreamReader reader = new InputStreamReader(input);
        return readLines(reader);
    }

    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;
    }

    public static void closeQuietly(OutputStream output) {
        try {
            if (output != null) {
                output.close();
            }
        } catch (IOException ioe) {
            // ignore
        }
    }

    /**
     * Unconditionally close an <code>InputStream</code>.
     * <p>
     * Equivalent to {@link InputStream#close()}, except any exceptions will be
     * ignored. This is typically used in finally blocks.
     *
     * @param input the InputStream to close, may be null or already closed
     */
    public static void closeQuietly(InputStream input) {
        try {
            if (input != null) {
                input.close();
            }
        } catch (IOException ioe) {
            // ignore
        }
    }
}

Java Reader Read Line readLines(Reader input)

Description

License

Declaration

Method Source Code

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