Question: import java.util.optional; public class ExceptionDemo { public static void main ( String [ ] args ) { string a = null; Optionalb = empty (

import java.util.optional;
public class ExceptionDemo {
public static void main(String[] args){
string a= null;
Optionalb=empty()a=b=
import java.util.optional; public class ExceptionDemo { public static void main(String[] args){

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