Example usage for java.io FileOutputStream write

Introduction

In this page you can find the example usage for java.io FileOutputStream write.

Prototype

public void write(byte b[], int off, int len) throws IOException

Source Link

Document

Writes len bytes from the specified byte array starting at offset off to this file output stream.

Usage

From source file:FileSplitter.java

public static void main(String args[]) throws Exception {
    FileInputStream fis = new FileInputStream(args[0]);
    int size = 1024;
    byte buffer[] = new byte[size];

    int count = 0;
    while (true) {
        int i = fis.read(buffer, 0, size);
        if (i == -1)
            break;

        String filename = args[1] + count;
        FileOutputStream fos = new FileOutputStream(filename);
        fos.write(buffer, 0, i);
        fos.flush();//from  www . j  a  v  a 2s.co  m
        fos.close();

        ++count;
    }
}

From source file:Main.java

public static void main(String args[]) throws Exception {
    byte[] b = new byte[1];
    URL url = new URL("http://www.server.com/a.gif");
    URLConnection urlConnection = url.openConnection();
    urlConnection.connect();//from  w ww . j  a va  2  s  . c o  m
    DataInputStream di = new DataInputStream(urlConnection.getInputStream());

    FileOutputStream fo = new FileOutputStream("a.gif");
    while (-1 != di.read(b, 0, 1))
        fo.write(b, 0, 1);
    di.close();
    fo.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {

    byte[] b = { 65, 66, 67, 68, 69 };
    int i = 0;//from   w  w w  .j a va 2 s.  c o  m

    FileOutputStream fos = new FileOutputStream("C://test.txt");

    // writes byte to the output stream
    fos.write(b, 2, 3);

    // flushes the content to the underlying stream
    fos.flush();

    // create new file input stream
    FileInputStream fis = new FileInputStream("C://test.txt");

    // read till the end of the file
    while ((i = fis.read()) != -1) {
        // convert integer to character
        char c = (char) i;
        System.out.print(c);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    int sChunk = 8192;

    String zipname = "a.txt.gz";
    String source = "a.txt";
    FileInputStream in = new FileInputStream(zipname);
    GZIPInputStream zipin = new GZIPInputStream(in);
    byte[] buffer = new byte[sChunk];
    FileOutputStream out = new FileOutputStream(source);
    int length;//  w w w .  j  av a2s.co  m
    while ((length = zipin.read(buffer, 0, sChunk)) != -1)
        out.write(buffer, 0, length);
    out.close();
    zipin.close();
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    String zipname = "data.txt.gz";
    String source = "data.txt.gz";
    GZIPInputStream zipin;//from   www.j a v  a  2s. c om

    FileInputStream in = new FileInputStream(zipname);
    zipin = new GZIPInputStream(in);

    byte[] buffer = new byte[sChunk];
    // decompress the file
    FileOutputStream out = new FileOutputStream(source);
    int length;
    while ((length = zipin.read(buffer, 0, sChunk)) != -1)
        out.write(buffer, 0, length);
    out.close();

    zipin.close();
}

From source file:MainClass.java

public static void main(String[] args) {
    File originFile = new File("c:\\file1.txt");
    File destinationFile = new File("c:\\file1.txt");
    if (!originFile.exists() || destinationFile.exists()) {
        return;//w  w  w .j a  v a  2 s.c o m
    }
    try {
        byte[] readData = new byte[1024];
        FileInputStream fis = new FileInputStream(originFile);
        FileOutputStream fos = new FileOutputStream(destinationFile);
        int i = fis.read(readData);

        while (i != -1) {
            fos.write(readData, 0, i);
            i = fis.read(readData);
        }
        fis.close();
        fos.close();
    } catch (IOException e) {
        System.out.println(e);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {

    FileInputStream fin = null;//from  w  ww .  ja  v  a  2s.  c o  m
    FileOutputStream fout = null;

    File file = new File("C:/myfile1.txt");

    fin = new FileInputStream(file);
    fout = new FileOutputStream("C:/myfile2.txt");

    byte[] buffer = new byte[1024];
    int bytesRead;
    while ((bytesRead = fin.read(buffer)) > 0) {
        fout.write(buffer, 0, bytesRead);
    }
    fin.close();
    fout.close();
}

From source file:Main.java

public static void main(String[] args) throws IOException {
    Deflater def = new Deflater();
    byte[] input = new byte[1024];
    byte[] output = new byte[1024];

    FileInputStream fin = new FileInputStream("a.dat");
    FileOutputStream fout = new FileOutputStream("b.dat");

    int numRead = fin.read(input);

    def.setInput(input, 0, numRead);/*  www .  j  a  v  a2  s.  c  o  m*/

    while (!def.needsInput()) {
        int numCompressedBytes = def.deflate(output, 0, output.length);
        if (numCompressedBytes > 0) {
            fout.write(output, 0, numCompressedBytes);
        }
    }
    def.finish();
    fin.close();
    fout.flush();
    fout.close();
    def.reset();
}

From source file:com.graphhopper.tools.Bzip2.java

public static void main(String[] args) throws IOException {
    if (args.length == 0) {
        throw new IllegalArgumentException("You need to specify the bz2 file!");
    }//  www. j a  v a  2s . c  om

    String fromFile = args[0];
    if (!fromFile.endsWith(".bz2")) {
        throw new IllegalArgumentException("You need to specify a bz2 file! But was:" + fromFile);
    }
    String toFile = Helper.pruneFileEnd(fromFile);

    FileInputStream in = new FileInputStream(fromFile);
    FileOutputStream out = new FileOutputStream(toFile);
    BZip2CompressorInputStream bzIn = new BZip2CompressorInputStream(in);
    try {
        final byte[] buffer = new byte[1024 * 8];
        int n = 0;
        while (-1 != (n = bzIn.read(buffer))) {
            out.write(buffer, 0, n);
        }
    } finally {
        out.close();
        bzIn.close();
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    String destinationname = "d:\\";
    byte[] buf = new byte[1024];
    ZipInputStream zipinputstream = null;
    ZipEntry zipentry;/*w ww .  j a  va  2 s.  co  m*/
    zipinputstream = new ZipInputStream(new FileInputStream("fileName"));
    zipentry = zipinputstream.getNextEntry();
    while (zipentry != null) {
        String entryName = zipentry.getName();
        FileOutputStream fileoutputstream;
        File newFile = new File(entryName);
        String directory = newFile.getParent();

        if (directory == null) {
            if (newFile.isDirectory())
                break;
        }
        fileoutputstream = new FileOutputStream(destinationname + entryName);
        int n;
        while ((n = zipinputstream.read(buf, 0, 1024)) > -1) {
            fileoutputstream.write(buf, 0, n);
        }
        fileoutputstream.close();
        zipinputstream.closeEntry();
        zipentry = zipinputstream.getNextEntry();
    }
    zipinputstream.close();
}