Example usage for java.nio ByteBuffer allocate

Introduction

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

Prototype

public static ByteBuffer allocate(int capacity)

Source Link

Document

Creates a byte buffer based on a newly allocated byte array.

Usage

From source file:Main.java

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

    buf.putShort((short) 123);

    // Reset position for reading
    buf.flip();/*from ww w  .  java2s .c o  m*/

    // Retrieve the values
    short s = buf.getShort();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer bbuf = ByteBuffer.allocate(10);
    int capacity = bbuf.capacity(); // 10
    System.out.println(capacity);
    bbuf.put((byte) 0xFF);
    bbuf.position(5);/*from  ww w .  ja  v a  2s. c  o  m*/
    bbuf.put((byte) 0xFF);
    int pos = bbuf.position();
    int rem = bbuf.remaining();
    bbuf.limit(7);
    bbuf.rewind();
}

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);//w ww.  j  a  v a2  s .c  om

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

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

}

From source file:Main.java

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

    // Put values of different types
    buf.putLong(123L);//from  ww  w  .j  a  v  a  2  s  .  com

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

    // Retrieve the values
    long l = buf.getLong();

}

From source file:Main.java

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

    // Put values of different types
    buf.putFloat(12.3F);//w ww. j ava  2 s  .  c om

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

    // Retrieve the values
    float f = buf.getFloat();

}

From source file:Main.java

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

    // Put values of different types
    buf.putChar((char) 123);

    // Reset position for reading
    buf.flip();/* w w w  . j  a  v a2  s .  c  om*/

    // Retrieve the values
    char c = buf.getChar();

}

From source file:Main.java

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

    // Put values of different types
    buf.putDouble(12.3D);/*from  www  . j a  va2  s.c om*/

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

    // Retrieve the values
    double d = buf.getDouble();

}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(10);
    buf.order(ByteOrder.LITTLE_ENDIAN);
}

From source file:Main.java

public static void main(String[] argv) throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(10);

    ByteOrder order = buf.order(); // ByteOrder.BIG_ENDIAN
}

From source file:Main.java

public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.allocate(BSIZE);
    bb.asIntBuffer().put(99471142);/*from   w  w w.  ja  v a  2 s  .c  o m*/
    System.out.println(bb.getInt(0));
}