Java I/O How to - Use while loop to read a CharBuffer

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Question

We would like to know how to use while loop to read a CharBuffer.

Answer

/*from ww w  .ja  v  a2s .  c  o  m*/
import java.nio.ByteBuffer;
import java.nio.CharBuffer;

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();
    CharBuffer cb = ((ByteBuffer) bb.rewind()).asCharBuffer();
    System.out.println("Char Buffer");
    while (cb.hasRemaining())
      System.out.println(cb.position() + " -> " + cb.get());
  }
}

The code above generates the following result.

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