public Stack(T data) { count = 1; top = new StackNode <T>(data); }
public StackNode(T d) { data = d; next = null; }
public Stack() { count = 0; top = null; }
public StackNode() { next = null; }
public Stack(T data) { count = 1; top = new StackNode <T>(data); }
public StackNode(T d) { data = d; next = null; }
public Stack() { count = 0; top = null; }
public StackNode() { next = null; }