Example usage for java.io DataOutputStream DataOutputStream

Introduction

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

Prototype

public DataOutputStream(OutputStream out)

Source Link

Document

Creates a new data output stream to write data to the specified underlying output stream.

Usage

From source file:Main.java

public static void main(String[] args) throws IOException {
    String s = "Hello from java2s.com!";

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    dos.writeBytes(s);//from ww  w .ja  va 2 s  .  co  m
    dos.flush();

    System.out.println(s + " in bytes:");
    for (byte b : baos.toByteArray()) {
        System.out.print(b + ",");
    }
}

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 . ja v a  2  s .  c  o 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[] buf = { 12, 15, 18, 20, 22, 24 };

    ByteArrayOutputStream baos = new ByteArrayOutputStream();

    DataOutputStream dos = new DataOutputStream(baos);

    for (byte b : buf) {
        dos.writeByte(b);/*from w  w  w  .  ja  va2  s. c  om*/
    }
    dos.flush();

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

}

From source file:Main.java

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

    int[] buf = { 65, 66, 67, 68, 69, 70, 71 };

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    for (int i : buf) {
        dos.write(i);/* w  w  w  .  j  a  va  2s  . com*/
    }

    dos.flush();

    for (byte b : baos.toByteArray()) {
        char c = (char) b;
        System.out.print(c);
    }
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    MessageDigest md = MessageDigest.getInstance("MD5");
    SomeObject testObject = new SomeObject();

    dos.writeInt(testObject.count);// w  w  w  . ja v a  2  s .co  m
    dos.writeLong(testObject.product);
    dos.writeDouble(testObject.stdDev);
    dos.writeUTF(testObject.name);
    dos.writeChar(testObject.delimiter);
    dos.flush();

    byte[] hashBytes = md.digest(baos.toByteArray());
    BigInteger testObjectHash = new BigInteger(hashBytes);

    System.out.println("Hash " + testObjectHash);

    dos.close();

}

From source file:MainClass.java

public static void main(String[] args) throws IOException {
    DataOutputStream out2 = new DataOutputStream(new BufferedOutputStream(new FileOutputStream("Data.txt")));
    out2.writeDouble(3.14159);//from  ww  w.ja  v  a 2 s  .  c  o m
    out2.writeUTF("Square root of 2");
    out2.close();

    DataInputStream in5 = new DataInputStream(new BufferedInputStream(new FileInputStream("Data.txt")));

    System.out.println(in5.readDouble());
    System.out.println(in5.readUTF());
}

From source file:Main.java

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

    boolean[] bools = { true, false, false, true, true, true };

    ByteArrayOutputStream baos = new ByteArrayOutputStream();
    DataOutputStream dos = new DataOutputStream(baos);

    for (boolean bool : bools) {
        dos.writeBoolean(bool);// w  w  w.j  a v a  2  s .  c  o m
    }

    dos.flush();

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

From source file:Main.java

public static void main(String[] argv) throws Exception {
    FileOutputStream fileOut = new FileOutputStream("data.txt");
    BufferedOutputStream buffer = new BufferedOutputStream(fileOut);
    DataOutputStream dataOut = new DataOutputStream(buffer);
    dataOut.writeUTF("Hello!");
    dataOut.writeInt(4);/*from  w  w w  . jav a 2  s  .com*/
    dataOut.writeDouble(100.0);
    dataOut.close();
    buffer.close();
    fileOut.close();
}

From source file:DataIODemo.java

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

    FileOutputStream fout = new FileOutputStream("Test.dat");
    DataOutputStream out = new DataOutputStream(fout);

    out.writeDouble(98.6);/*from   w ww .java2s . c  o  m*/
    out.writeInt(1000);
    out.writeBoolean(true);

    out.close();

    FileInputStream fin = new FileInputStream("Test.dat");
    DataInputStream in = new DataInputStream(fin);

    double d = in.readDouble();
    int i = in.readInt();
    boolean b = in.readBoolean();

    System.out.println("Here are the values:  " + d + " " + i + " " + b);

    in.close();
}

From source file:Test.java

public static void main(String[] args) throws Exception {
    LinkedBlockingQueue<String> queue = new LinkedBlockingQueue<String>();
    FileOutputStream fos = new FileOutputStream("out.log");
    DataOutputStream dos = new DataOutputStream(fos);
    while (!queue.isEmpty()) {
        dos.writeUTF(queue.take());// w w  w .j  a  v  a  2  s .  c om
    }
}