Java Tutorial/File/DoubleBuffer

Convert ByteBuffer to DoubleBuffer

import java.nio.ByteBuffer;
import java.nio.DoubleBuffer;
public class MainClass {
  public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, "a" });
    bb.rewind();
    DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer();
    System.out.println("Double Buffer");
    while (db.hasRemaining())
      System.out.println(db.position() + " -> " + db.get());
  }
}
/*
 * 
 */

Double Buffer
0 -> 4.8E-322

Create a DoubleBuffer

import java.nio.ByteBuffer;
import java.nio.DoubleBuffer;
public class Main {
  public static void main(String[] argv) throws Exception {
    ByteBuffer buf = ByteBuffer.allocate(15);
    DoubleBuffer dbuf = buf.asDoubleBuffer();
  }
}

Use While loop to read a DoubleBuffer

import java.nio.ByteBuffer;
import java.nio.DoubleBuffer;
public class MainClass {
  public static void main(String[] args) {
    ByteBuffer bb = ByteBuffer.wrap(new byte[] { 0, 0, 0, 0, 0, 0, 0, "a" });
    bb.rewind();
    DoubleBuffer db = ((ByteBuffer) bb.rewind()).asDoubleBuffer();
    System.out.println("Double Buffer");
    while (db.hasRemaining())
      System.out.println(db.position() + " -> " + db.get());
  }
}
/*
 * 
 */

Double Buffer
0 -> 4.8E-322