Given:

String str $="123"$;

int x;

Which of the following statements will convert str to an integer value?

A$.$

x $=$ Integer.parseInt$($str$)$;

B$.$

x $=$ Convert.toInteger$($str$)$;

C$.$

x $=$ atol$($str$)$;

D$.$

Can't be done without writing a small conversion routine.