Java Text File Read Line readLines(File file)

Description

read lines.

License

Apache License

Parameter

Parameter	Description
file	file.

Exception

Parameter	Description
IOException	IOException

Return

lines String[].

Declaration

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

Method Source Code

//package com.java2s;
//License from project: Apache License 

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.util.ArrayList;
import java.util.List;

public class Main {
    /**/*from   ww  w .j a v a2  s .com*/
     * read lines.
     * 
     * @param file file.
     * @return lines String[].
     * @throws IOException 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 String[].
     * @throws IOException 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();
        }
    }
}

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