Java ByteBuffer iterate

import java.nio.ByteBuffer;

public class Main {
  public static void main(String[] args) {
    // Create a byte buffer of capacity 8
    ByteBuffer bb = ByteBuffer.allocate(8);

    int limit = bb.limit();
    System.out.println("Position = " + bb.position() + ", Limit = " + limit);
    System.out.print("Data: ");
    while (bb.hasRemaining()) {
      System.out.print(bb.get() + " ");
    }//  w ww. j a  v a2 s.co m

    // call flip() to reset the position to zero because
    bb.flip();

    // Populate buffer elements from 50 to 57
    int i = 50;
    while (bb.hasRemaining()) {
      bb.put((byte) i++);
    }
    // Call flip() again to reset the position to zero,
    // put() call incremented the position
    bb.flip();

    // Print the buffer info
    System.out.println("After populating data:");
    limit = bb.limit();
    System.out.println("Position = " + bb.position() + ", Limit = " + limit);
    System.out.print("Data: ");
    while (bb.hasRemaining()) {
      System.out.print(bb.get() + " ");
    }
  }

}