$1****$

Accessor method to determine whether this sequence has a specified

current element $($a Ball or nu$11)$ that can be retrieved with the

getCurrent method. This depends on the status of the cursor.

@param $-$ none

ereturn

true $($there is a current element$)$ or false $($there is no current element at the moment$)$

$**1$

public boolean isCurrent $)$

$\{$

assert wellFormed$()$ : "invariant failed at start of isCurrent";

$//$ TODO: Implement this code.

$\}$

Can help me to complete todo