Given the classes above, what output is produced by the following code? $($Since the code loops over the elements of an array of objects, write the output produced as the loop passes over each element of the array separately.$)$

C$[]$ elements $=\{$new A$(),$ new B$(),$ new C$(),$ new D$()\}$;

for $($int i $=0$; i $$ elements.length; i$++)\{$

System.out.println$($elements$[$i$])$;

elements$[$i$].$method$1()$;

System.out.println$()$;

elements$[$i$].$method$2()$;

System.out.println$()$;

System.out.println$()$;

$\}$