Java Tutorial/File/LongBuffer

Convert ByteBuffer to a LongBuffer

import java.nio.ByteBuffer;
import java.nio.LongBuffer;
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();
    LongBuffer lb = ((ByteBuffer) bb.rewind()).asLongBuffer();
    System.out.println("Long Buffer");
    while (lb.hasRemaining())
      System.out.println(lb.position() + " -> " + lb.get());
  }
}
/*
 */

Long Buffer
0 -> 97

Create a long ByteBuffer

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

Loop through a LongBuffer with a while loop

import java.nio.ByteBuffer;
import java.nio.LongBuffer;
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();
    LongBuffer lb = ((ByteBuffer) bb.rewind()).asLongBuffer();
    System.out.println("Long Buffer");
    while (lb.hasRemaining())
      System.out.println(lb.position() + " -> " + lb.get());
  }
}
/*
 */

Long Buffer
0 -> 97