get Line List from text file - Java File Path IO

Java examples for File Path IO:Text File

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Description

get Line List from text file

Demo Code

/**/*w w  w  .  j  a  va 2s  .  c o  m*/
 * Copyright (c) 2016, Search Solution Corporation. All rights reserved.
 * 
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 * 
 *   * Redistributions of source code must retain the above copyright notice, 
 *     this list of conditions and the following disclaimer.
 * 
 *   * Redistributions in binary form must reproduce the above copyright 
 *     notice, this list of conditions and the following disclaimer in 
 *     the documentation and/or other materials provided with the distribution.
 * 
 *   * Neither the name of the copyright holder nor the names of its contributors may be used to endorse or promote products 
 *     derived from this software without specific prior written permission.
 * 
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, 
 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 
 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 
 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE 
 * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 
 */
//package com.java2s;

import java.io.File;
import java.io.FileInputStream;

import java.io.IOException;

import java.io.InputStreamReader;
import java.io.LineNumberReader;

import java.util.ArrayList;

public class Main {
    public static void main(String[] argv) throws Exception {
        String filename = "java2s.com";
        System.out.println(getLineList(filename));
    }

    public static ArrayList<String> getLineList(String filename)
            throws IOException {

        if (filename == null)
            return null;

        File file = new File(filename);
        if (!file.exists()) {
            return null;
        }
        ArrayList<String> resultList = new ArrayList<String>();
        FileInputStream fis = new FileInputStream(file);
        InputStreamReader reader = new InputStreamReader(fis, "UTF-8");

        LineNumberReader lineReader = new LineNumberReader(reader);
        String line;

        while ((line = lineReader.readLine()) != null) {
            if (line.trim().equals(""))
                continue;
            resultList.add(line.trim());
        }
        lineReader.close();
        reader.close();
        fis.close();
        return resultList;
    }
}

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