void add char c;
void freeze;
id initWithCapacity int capacity;
protected id initWithEnumerator Enumerator e;
char removeAt int index;
void removeElements (int, int) (start, length);
void resize (int, int) (start, num);
void set char c at int index;
CharNumber removeAt int index;
void set All object at int index;
void swap (int, int) (i, j);