Java File Append appendFileLines(String fileName, String[] data)

Description

{ method

License

Apache License

Parameter

Parameter	Description
f	non-null of file to create
data	non-null array of lines to write

Return

true = success }

Declaration

public static boolean appendFileLines(String fileName, String[] data) 

Method Source Code

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

import java.io.*;

public class Main {
    /**// w ww . ja v  a2  s  .c  o  m
     * { method
     *
     * @param f    non-null  of file to create
     * @param data non-null array of lines to write
     * @return true = success
     *         }
     * @name appendFileLines
     * @function append the string data to the file Filename
     */
    public static boolean appendFileLines(String fileName, String[] data) {
        return appendFileLines(new File(fileName), data);
    }

    /**
     * { method
     *
     * @param f    non-null  of file to create
     * @param data non-null array of lines to write
     * @return true = success
     *         }
     * @name writeFileLines
     * @function write the string data to the file Filename
     */
    public static boolean appendFileLines(File f, String[] data) {
        try {
            PrintWriter out = openAppendPrintWriter(f);
            if (out != null) {
                for (int i = 0; i < data.length; i++)
                    out.println(data[i]);
                out.close();
                return (true);
            }
            return (false);
            // failure
        } catch (SecurityException ex) {
            return (false); // browser disallows
        }
    }

    /**
     * { method
     *
     * @param name name of file
     * @return the stream - null for failure
     *         }
     * @name openPrintWriter
     * @function open a PrintWriter to a file with name
     */
    public static PrintWriter openAppendPrintWriter(File name) {
        FileOutputStream file = null;
        try {
            file = new FileOutputStream(name, true);
            return new PrintWriter(new BufferedOutputStream(file));
        } catch (SecurityException ee) {
            return (null);
        } catch (IOException ee) {
            return (null);
        }
    }
}

Related

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5. appendFileContent(File file, String content, boolean append)
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7. appendHex(A sb, byte[] array, int offset, int len, char sep)
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9. appendHexJavaScriptRepresentation(StringBuilder sb, char c)