Consider the following UML and the corresponding suggested implementation.

Find all the coupling between classes; make sure to identify the type of the

coupling.

Redesign the model in order to decrease the coupling as much as possible.

public teacher $($string name, int id$)$

$\{$

this.name$=$name;

this.id$=$id;

$\}$

public add $($string name, int id$,$ Boolean $x)$

$\{$

controller $c=$ new controller $()$;

if$($x$)|$

$\{$

Student s$=$new student $($name$,$ id$)$;

c$.$addStudent$($s$)$;

$\}$

else

$\{$

Teacher $t=$ new teacher $($name$,$ id$)$;

c$.$addTeacher$($t$)$;

$\}$

$\}$