DateTime conversion to various types in java 8

DateTimeConvertTest.java

import java.time.LocalDateTime;
import java.time.ZoneId;
import java.time.ZoneOffset;
import java.time.ZonedDateTime;

public class DateTimeConvertTest {


    public static void main(String[] args) {

        var localDateTime = LocalDateTime.now();
        System.out.println("localDateTime: " + localDateTime);

        var zonedDateTime = localDateTime.atZone(ZoneId.of("CET"));
        System.out.println("zonedDateTime: " + zonedDateTime);

        var offsetDateTime = zonedDateTime.toOffsetDateTime();
        System.out.println("offsetDateTime: " + offsetDateTime);

        var localDateTimeUtc = offsetDateTime
            .withOffsetSameInstant(ZoneOffset.UTC).toLocalDateTime();
        System.out.println("localDateTimeUtc: " + localDateTimeUtc);

        var zonedDatetimeRes = localDateTimeUtc.atZone(ZoneId.of("CET"));
        System.out.println("zonedDatetimeRes: " + zonedDatetimeRes);

        var offsetDateTimeRes = zonedDatetimeRes.toOffsetDateTime();
        System.out.println("offsetDateTimeRes: " + offsetDateTimeRes);
    }

}