Java Text File Read Line readLines(File file)

Description

read lines.

License

Apache License

Parameter

Parameter	Description
file	file.

Exception

Parameter	Description
IOException	an exception

Return

lines.

Declaration

public static String[] readLines(File file) throws IOException 

Method Source Code

//package com.java2s;
/*/*from w  w w .  ja v a2 s.  co m*/
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */

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

public class Main {
    /**
     * read lines.
     *
     * @param file file.
     * @return lines.
     * @throws IOException
     */
    public static String[] readLines(File file) throws IOException {
        if (file == null || !file.exists() || !file.canRead()) {
            return new String[0];
        }

        return readLines(new FileInputStream(file));
    }

    /**
     * read lines.
     *
     * @param is input stream.
     * @return lines.
     * @throws IOException
     */
    public static String[] readLines(InputStream is) throws IOException {
        List<String> lines = new ArrayList<String>();
        BufferedReader reader = new BufferedReader(new InputStreamReader(is));
        try {
            String line;
            while ((line = reader.readLine()) != null) {
                lines.add(line);
            }
            return lines.toArray(new String[0]);
        } finally {
            reader.close();
        }
    }
}

Related

1. readLines(File f)
2. readLines(File file)
3. readLines(File file)
4. readLines(File file)
5. readLines(File file)
6. readLines(File file)
7. readLines(File file)
8. readLines(File file)
9. readLines(File file)