class MutableCharArray implements CharSequence, Cloneable {

  public MutableCharArray subSequence(int start, int end) {
    return new MutableCharArray(buffer, start, end - start);
  }

  public  MutableCharArray();
  public  MutableCharArray(CharSequence seq);
  public  MutableCharArray(char[] buffer);
  public  MutableCharArray(char[] buffer, int start, int length);

}