Using recursion, complete the body of the following static method. Note the use of a Java switchstatement. See Slides $44-49$ in Statement for the syntax, purpose, and behavior of this construct.

$/***$ Reports the number of calls to primitive instructions $($move$,$ turnleft, $*$ turnright, infect, skip$)$ in a given $\{$@code Statement$\}.**$ @param s $*$ the $\{$@code Statement$\}*$ @return the number of calls to primitive instructions in $\{$@code s$\}*$ @ensures