john has written the following code in java $7$ and he wants to convert it to java $8,$ then which of the given option is the correct java $8$ alternative?

code:

Arrays. sort $($teststrings$,$ new comparator

$()\{$

@override

public int compare $($String s$1,$ string s$2)\{$

return$($s$1.$lenght$()-$s$2.$length$())$;

$\}$

$\})$;