What is the output of the following code?

$)<mi\; id="EditorElement\_15537042">(</mi><mn\; id="EditorElement\_15537036">4</mn><mi\; id="EditorElement\_15537032">\}</mi>$

$x=x+1$

$\{$

System.out.print is $"+x$;

$x$ is $3$

$x$ is $1$

$x$ is $2$

$x$ is $0$

$x$ is $4$