import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;
public class DateTimeExample {
public static void main(String[] args) {
String datetimeString = "2021-12-31T23:59:59";
LocalDateTime dateTime = LocalDateTime.parse(datetimeString);
DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy/MM/dd HH:mm:ss");
String formattedDateTime = dateTime.format(formatter);
System.out.println("Formatted DateTime: " + formattedDateTime);
}
}
