What is the output of the following Java program?

public class Test $\{$

public static void main$($String$[]$ args$)\{$

String $[]sa=\{AA,B{B}^{\text{'}},CC\}$;

int $x=$yMethod$(sa)$;

System.out.print $ln(sa[]+n+x)$;

$\}$

public static int yMethod$($string a$[])\{$

$a=$ new string $[5]$;$a[]="$DD$"$; $a[1]="$EE$"$;

return a$.$length;

$\}$

$\}//$Test