Example usage for java.nio ByteBuffer getInt

Introduction

In this page you can find the example usage for java.nio ByteBuffer getInt.

Prototype

public abstract int getInt();

Source Link

Document

Returns the int at the current position and increases the position by 4.

Usage

From source file:MainClass.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.allocate(BSIZE);
    bb.asIntBuffer().put(99471142);/*  w  w  w. j ava  2  s  .  co m*/
    System.out.println(bb.getInt());
}

From source file:Main.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.allocate(BSIZE);
    bb.asIntBuffer().put(99471142);/*from  w  ww. j  a  va2 s  .com*/
    System.out.println(bb.getInt());

    bb = ByteBuffer.allocate(BSIZE);
    bb.asLongBuffer().put(99472342341142L);
    System.out.println(bb.getLong());

    bb = ByteBuffer.allocate(BSIZE);

    bb.asFloatBuffer().put(99471142);
    System.out.println(bb.getFloat());

    bb = ByteBuffer.allocate(BSIZE);

    bb.asDoubleBuffer().put(99471142);
    System.out.println(bb.getDouble());

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(100);

    // Put values of different types
    buf.putInt(123);//from   w ww. j a  v a  2 s .  c o m

    // Reset position for reading
    buf.flip();

    // Retrieve the values
    int i = buf.getInt();

}

From source file:GetData.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.allocate(BSIZE);
    // Allocation automatically zeroes the ByteBuffer:
    int i = 0;// ww w.j  a v a  2  s . c om
    while (i++ < bb.limit())
        if (bb.get() != 0)
            System.out.println("nonzero");
    System.out.println("i = " + i);
    bb.rewind();
    // Store and read a char array:
    bb.asCharBuffer().put("Howdy!");
    char c;
    while ((c = bb.getChar()) != 0)
        System.out.print(c + " ");
    System.out.println();
    bb.rewind();
    // Store and read a short:
    bb.asShortBuffer().put((short) 471142);
    System.out.println(bb.getShort());
    bb.rewind();
    // Store and read an int:
    bb.asIntBuffer().put(99471142);
    System.out.println(bb.getInt());
    bb.rewind();
    // Store and read a long:
    bb.asLongBuffer().put(99471142);
    System.out.println(bb.getLong());
    bb.rewind();
    // Store and read a float:
    bb.asFloatBuffer().put(99471142);
    System.out.println(bb.getFloat());
    bb.rewind();
    // Store and read a double:
    bb.asDoubleBuffer().put(99471142);
    System.out.println(bb.getDouble());
    bb.rewind();

}

From source file:Main.java

public static long getUnsignedInt(ByteBuffer bb) {
    return ((long) bb.getInt() & 0xffffffffL);
}

From source file:Main.java

public static String readMAString(ByteBuffer in) {
    int tmp = in.getInt();
    byte[] dst = new byte[tmp];
    in.get(dst);//from   ww w  .  j  a  v a 2 s. co m
    String ret = Charset.forName("UTF-8").decode(ByteBuffer.wrap(dst)).toString();
    return ret;
}

From source file:Main.java

public static long getUnsignedInt(final ByteBuffer pByteBuffer) {
    return pByteBuffer.getInt() & 0xFFFFFFFFL;
}

From source file:Main.java

static public int[] getArray(ByteBuffer data, int dataSize) {
    int size = data.getInt();
    int[] result = new int[size];
    for (int i = 0; i < result.length; i++) {
        if (dataSize == 2)
            result[i] = data.getShort();
        if (dataSize == 4)
            result[i] = data.getInt();// www.j ava  2s .c om
    }
    return result;
}

From source file:Main.java

public static int fromArray(byte[] payload) {
    ByteBuffer buffer = ByteBuffer.wrap(payload);
    buffer.order(ByteOrder.LITTLE_ENDIAN);
    return buffer.getInt();
}

From source file:Main.java

private static void receive(Map<Integer, byte[]> map, DatagramSocket socket, int[] length) {
    byte[] b = new byte[limit + 4];
    DatagramPacket p = new DatagramPacket(b, b.length);
    try {//from  w  w  w .j a  va2s.  c  o  m
        socket.receive(p);
    } catch (IOException ex) {
        ex.printStackTrace();
    }
    if (p.getLength() != 0) {
        ByteBuffer buf = ByteBuffer.wrap(b);
        int key = buf.getInt();
        byte[] bytes = new byte[p.getLength() - 4];
        length[0] += bytes.length;
        buf.get(bytes);
        map.put(key, bytes);
        receive(map, socket, length);
    }
}