Example usage for java.io DataOutputStream writeLong

Introduction

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

Prototype

public final void writeLong(long v) throws IOException

Source Link

Document

Writes a long to the underlying output stream as eight bytes, high byte first.

Usage

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("C:/WriteLong.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    long l = 65;/*from  ww  w.  j  a va  2  s. com*/
    dos.writeLong(l);
    dos.close();
}

From source file:Main.java

public static void main(String[] args) throws Exception {
    FileOutputStream fos = new FileOutputStream("C:/WriteLong.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    long l = 65;//from   w ww  .j  a va  2s.co m
    dos.writeLong(l);

    for (int i = 0; i < 10; i++)
        dos.writeInt(i);

    dos.close();
}

From source file:Main.java

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

    long[] l = { 1234567890L, 987654321L };
    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);
    for (long j : l) {
        dos.writeLong(j);
    }/*from   w ww.j  a v  a  2  s .  c o  m*/
    dos.flush();
    InputStream is = new FileInputStream("c:\\test.txt");

    DataInputStream dis = new DataInputStream(is);
    while (dis.available() > 0) {
        long k = dis.readLong();
        System.out.print(k);
    }
}

From source file:Main.java

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

    long[] l = { 1234567898765L, 12345678909876L };

    FileOutputStream fos = new FileOutputStream("c:\\test.txt");
    DataOutputStream dos = new DataOutputStream(fos);

    for (long j : l) {
        dos.writeLong(j);
    }//from w  ww.j av  a2s .c  om
    dos.flush();

    InputStream is = new FileInputStream("c:\\test.txt");
    DataInputStream dis = new DataInputStream(is);

    while (dis.available() > 0) {
        long k = dis.readLong();
        System.out.print(k);
    }
}

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);//from   ww w.j  av a 2  s. c o 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[]) {
    try {/*  w w w . ja v a  2s  . c  om*/

        FileOutputStream fos = new FileOutputStream(args[0]);

        DataOutputStream dos = new DataOutputStream(fos);

        dos.writeBoolean(false);
        dos.writeByte(Byte.MAX_VALUE);
        dos.writeChar('A');
        dos.writeDouble(Double.MAX_VALUE);
        dos.writeFloat(Float.MAX_VALUE);
        dos.writeInt(Integer.MAX_VALUE);
        dos.writeLong(Long.MAX_VALUE);
        dos.writeShort(Short.MAX_VALUE);

        fos.close();
    } catch (Exception e) {
        System.out.println("Exception: " + e);
    }
}

From source file:com.splout.db.dnode.TCPStreamer.java

/**
 * This main method can be used for testing the TCP interface directly to a
 * local DNode. Will ask for protocol input from Stdin and print output to
 * Stdout//from   w  w  w  .jav a2s.  co m
 */
public static void main(String[] args) throws UnknownHostException, IOException, SerializationException {
    SploutConfiguration config = SploutConfiguration.get();
    Socket clientSocket = new Socket("localhost", config.getInt(DNodeProperties.STREAMING_PORT));

    DataInputStream inFromServer = new DataInputStream(new BufferedInputStream(clientSocket.getInputStream()));
    DataOutputStream outToServer = new DataOutputStream(
            new BufferedOutputStream(clientSocket.getOutputStream()));

    BufferedReader reader = new BufferedReader(new InputStreamReader(System.in));
    System.out.println("Enter tablespace: ");
    String tablespace = reader.readLine();

    System.out.println("Enter version number: ");
    long versionNumber = Long.parseLong(reader.readLine());

    System.out.println("Enter partition: ");
    int partition = Integer.parseInt(reader.readLine());

    System.out.println("Enter query: ");
    String query = reader.readLine();

    outToServer.writeUTF(tablespace);
    outToServer.writeLong(versionNumber);
    outToServer.writeInt(partition);
    outToServer.writeUTF(query);

    outToServer.flush();

    byte[] buffer = new byte[0];
    boolean read;
    do {
        read = false;
        int nBytes = inFromServer.readInt();
        if (nBytes > 0) {
            buffer = new byte[nBytes];
            int inRead = inFromServer.read(buffer);
            if (inRead > 0) {
                Object[] res = ResultSerializer.deserialize(ByteBuffer.wrap(buffer), Object[].class);
                read = true;
                System.out.println(Arrays.toString(res));
            }
        }
    } while (read);

    clientSocket.close();
}

From source file:Main.java

public static void writeLong(DataOutputStream os, long l) throws IOException {
    os.writeLong(Long.reverseBytes(l));
}

From source file:MainClass.java

public static byte[] makeBytes(long t, double q) {
    try {//from   w  w w.j  a  va2s .c  om
        ByteArrayOutputStream byteOut = new ByteArrayOutputStream();
        DataOutputStream dataOut = new DataOutputStream(byteOut);
        dataOut.writeLong(t);
        dataOut.writeDouble(q);
        return byteOut.toByteArray();
    } catch (IOException e) {
        return new byte[0];
    }
}

From source file:Main.java

public static byte[] longToByteArray(long number) {
    try {/*w  ww  .j a  v a2s.c om*/
        ByteArrayOutputStream bos = new ByteArrayOutputStream();
        DataOutputStream dos = new DataOutputStream(bos);
        dos.writeLong(number);
        dos.flush();
        // lenth have to be 2 byte
        byte[] d = bos.toByteArray();
        dos.close();

        return d;
    } catch (IOException e) {
        throw new RuntimeException(e);
    }
}