What is the output of following code segment?

public class Test $\{$

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

char $r={?}^{\text{'}}x\text{'}$;

System.out.println$("$z$")$;

else $\text{'})$

System.out. println$("$y$")$;

else if $\text{'}x\text{'})$

System.out.println$("$x$")$;

$\}$

$\}$

y

x

z

r