Consider the following code:

public interface Analyzer $\{$

public int analyze$($int$...$ ints$)$;

$\}$

What is the return value of the following code?

Analyzer code $=$ new Analyzer $\{$

@Override

public int analyze$($int$...$ ints$)\{$

if $($ints $==$ null $||$ ints. length $==0)\{$

return $-1$ ;

$\}$

else if $($ints$.$length $==1)\{$

return ints$[0]$;

$\}$

else $\{$

int sum $=0$;

for $($int $i$ : ints$)\{$

$\}$

sum $+=i$;

return $($sum $/$ ints.length$)$;

$\}$

$\}$;

$\}$

code. analyze$()$;