Example usage for java.io ByteArrayOutputStream toByteArray

Introduction

In this page you can find the example usage for java.io ByteArrayOutputStream toByteArray.

Prototype

public synchronized byte[] toByteArray()

Source Link

Document

Creates a newly allocated byte array.

Usage

From source file:Main.java

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

    byte[] bs = { 65, 66, 67, 68, 69 };

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    baos.write(bs);//from  w  w w .j  a v a  2 s .  c o  m

    for (byte b : baos.toByteArray()) {
        baos.write(b);

        System.out.println(b);
    }

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    Path sourceFile = FileSystems.getDefault().getPath("C:/home/docs/users.txt");
    ByteArrayOutputStream outputStream = new ByteArrayOutputStream();
    Files.copy(sourceFile, outputStream);
    byte arr[] = outputStream.toByteArray();
    System.out.println("The contents of " + sourceFile.getFileName());
    for (byte data : arr) {
        System.out.print((char) data);
    }/* ww  w.ja v a2s  .  co  m*/

}

From source file:Main.java

public static void main(String[] args) throws Exception {
    int size = 200;
    BufferedImage image = new BufferedImage(size, size, BufferedImage.TYPE_INT_ARGB);

    Graphics2D g = image.createGraphics();
    g.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    g.setColor(Color.BLUE);//from   w  w  w. j a  v  a2  s .c om
    for (int i = 0; i < size; i += 5) {
        g.drawOval(i, i, size - i, size - i);
    }
    g.dispose();

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    ImageIO.write(image, "png", baos);

    String data = DatatypeConverter.printBase64Binary(baos.toByteArray());
    String imageString = "data:image/png;base64," + data;
    String html = "<html><body><img src='" + imageString + "'></body></html>";
    System.out.println(html);
}

From source file:MainClass.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream("2.pdf"));
    document.open();//from www  .ja va  2s  .  co  m
    document.add(new Paragraph("Hello World"));
    document.close();
    PdfReader reader = new PdfReader("2.pdf");
    System.out.println("Tampered? " + reader.isTampered());
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("2.pdf"));
    HashMap info = reader.getInfo();
    info.put("Subject", "subject");
    info.put("Author", "author");
    info.put("Keywords", "keywords");
    info.put("Title", "title");
    info.put("Creator", "creator");
    stamper.setMoreInfo(info);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XmpWriter xmp = new XmpWriter(baos, info);
    xmp.close();
    stamper.setXmpMetadata(baos.toByteArray());
    stamper.close();
}

From source file:HelloWorldAddMetadata.java

public static void main(String[] args) throws Exception {
    Document document = new Document();
    PdfWriter.getInstance(document, new FileOutputStream("HelloWorld.pdf"));
    document.open();// w w w  .j av  a 2 s.  c o  m
    document.add(new Paragraph("Hello World"));
    document.close();

    PdfReader reader = new PdfReader("HelloWorld.pdf");
    System.out.println("Tampered? " + reader.isTampered());
    PdfStamper stamper = new PdfStamper(reader, new FileOutputStream("HelloWorldStampedMetadata.pdf"));
    System.out.println("Tampered? " + reader.isTampered());
    HashMap<String, String> info = reader.getInfo();
    info.put("Subject", "Hello World");
    info.put("Author", "your name");
    info.put("Keywords", "iText pdf");
    info.put("Title", "Hello World stamped");
    info.put("Creator", "your name");
    stamper.setMoreInfo(info);
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    XmpWriter xmp = new XmpWriter(baos, info);
    xmp.close();
    stamper.setXmpMetadata(baos.toByteArray());
    stamper.close();
}

From source file:Main.java

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

    byte[] buf = { 87, 64, 72, 31, 90 };
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    DataOutputStream dos = new DataOutputStream(baos);

    dos.write(buf, 2, 3);/*from w  ww  .  jav a2s . co m*/

    dos.flush();

    for (byte b : baos.toByteArray()) {
        System.out.println(b);
    }
}

From source file:Main.java

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

    byte[] bs = { 65, 66, 67, 68, 69 };
    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    // write byte array to the output stream
    baos.write(bs, 3, 2);// w  ww  .  j a  va2s .c  o  m

    // read all the bytes in the output stream
    for (byte b : baos.toByteArray()) {
        System.out.println(b);
    }

}

From source file:Main.java

public static void main(String args[]) throws Exception {
    String sessionCookie = null;//from ww  w.  j av a2 s .  co  m
    URL url = new java.net.URL("http://127.0.0.1/yourServlet");
    URLConnection con = url.openConnection();
    if (sessionCookie != null) {
        con.setRequestProperty("cookie", sessionCookie);
    }
    con.setUseCaches(false);
    con.setDoOutput(true);
    con.setDoInput(true);
    ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
    DataOutputStream out = new DataOutputStream(byteOut);
    out.flush();
    byte buf[] = byteOut.toByteArray();
    con.setRequestProperty("Content-type", "application/octet-stream");
    con.setRequestProperty("Content-length", "" + buf.length);
    DataOutputStream dataOut = new DataOutputStream(con.getOutputStream());
    dataOut.write(buf);
    dataOut.flush();
    dataOut.close();
    DataInputStream in = new DataInputStream(con.getInputStream());
    int count = in.readInt();
    in.close();
    if (sessionCookie == null) {
        String cookie = con.getHeaderField("set-cookie");
        if (cookie != null) {
            sessionCookie = parseCookie(cookie);
            System.out.println("Setting session ID=" + sessionCookie);
        }
    }

    System.out.println(count);
}

From source file:Main.java

public static void main(String[] arg) throws Throwable {
    File f = new File(arg[0]);
    InputStream in = new FileInputStream(f);

    byte[] buff = new byte[8000];

    int bytesRead = 0;

    ByteArrayOutputStream bao = new ByteArrayOutputStream();

    while ((bytesRead = in.read(buff)) != -1) {
        bao.write(buff, 0, bytesRead);/*from ww w.j  av a  2  s  .  com*/
    }
    in.close();

    byte[] data = bao.toByteArray();

    ByteArrayInputStream bin = new ByteArrayInputStream(data);
    System.out.println(bin.available());
}

From source file:Main.java

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

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    BufferedOutputStream bos = new BufferedOutputStream(baos);

    int b = 87;/*from   w w  w. j  ava2 s.c om*/

    bos.write(b);

    bos.flush();

    byte[] bytes = baos.toByteArray();

    System.out.println(bytes[0]);

}