What output is generated by the follow

class Output $\{$

private string $s$;

public Output$($String $s)\{$

this. $s=s$;

public String gets$()\{$

return s;

$\}$

public vold output $()\{$

System.out. print $ln(s)$;

$\}$

public static vold korld$($String s$)\{$

$s=$ "Korld";

$\}$

public static void change$($Output a$)$ f

a$.$ output $()$ ;

world $(a*getS())$;

a$.$ output$()$;

$a=$ neu Output $("$World$")$;

a$.$ output$()$;

$\}$

public static vold main$($String$[]$ args$)$ f

Output a $=$ neu Output $("$Hello$")$;

a$.$ output $()$;

change $($a$)$ ;

a$.$ output$()$;

$)$