Which of the following best describes the purpose of the DateTimeFormatter class in Java 8?

Java MCQ: Which of the following best describes the purpose of the DateTimeFormatter class in Java 8?

Answer:

Explanation:

The DateTimeFormatter class in Java 8 is used to convert a date-time object to a String and vice versa. It is part of the java.time.format package and provides a flexible and comprehensive way to format and parse date-time objects.

Here’s an example of using DateTimeFormatter:

import java.time.LocalDateTime;
import java.time.format.DateTimeFormatter;

public class DateTimeFormatterExample {
    public static void main(String[] args) {
        LocalDateTime now = LocalDateTime.now();
        DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss");
        String formattedDate = now.format(formatter);
        System.out.println("Formatted DateTime: " + formattedDate);
    }
}

In this example, DateTimeFormatter is used to format the current date and time (LocalDateTime.now()) into a string with the pattern "yyyy-MM-dd HH:mm:ss". The format() method is called on the LocalDateTime object, and the formatted string is printed.

DateTimeFormatter also supports parsing strings into date-time objects, allowing for easy conversion between string representations and LocalDate, LocalTime, LocalDateTime, and other date-time types in the java.time package.

Reference links:

https://www.rameshfadatare.com/learn-java-programming/
https://www.javaguides.net/p/java-tutorial-learn-java-programming.html