public CharBlockArray append(CharSequence chars, int start, int length) {int end = start + length;for (int i = start; i < end; i++) {append(chars.charAt(i));}return this;}

public CharBlockArray append ( CharSequence chars , int start , int length ) { int end = start + length ; for ( int i = start ; i < end ; i ++ ) { append ( chars . charAt ( i ) ) ; } return this ; }
public virtual CharBlockArray Append(ICharSequence chars, int start, int length){int end = start + length;for (int i = start; i < end; i++){Append(chars[i]);}return this;}
