What is the purpose of LocalDateTime in Java?

The LocalDateTime class in Java is used to represent dates and times without time zone information. It provides a range of methods for manipulating dates and times, such as retrieving the current date and time, formatting date and time text, and comparing dates and times. The LocalDateTime class can represent a specific date and time, for example, October 20, 2021 at 3:30 PM.

The functions of the LocalDateTime class include but are not limited to the following aspects:

1. You can fetch the current date and time by using the LocalDateTime.now() method.
2. Format date and time: You can customize the format of dates and times using the DateTimeFormatter class, converting a LocalDateTime object to a string based on the specified format.
3. To compare dates and times: You can use the compareTo() method to compare the order of two LocalDateTime objects.
4. Calculate dates and times: You can use the plusXXX() and minusXXX() methods to perform addition and subtraction operations on the current date and time, such as adding one day or subtracting one hour.
5. Extract different parts of the date and time: The getXXX() method can be used to retrieve the year, month, day, hour, minute, second, and other parts of a LocalDateTime object.
6. Create a specific date and time: You can use the LocalDateTime.of() method to construct a specified date and time.

In conclusion, the LocalDateTime class offers convenient methods for handling dates and times, allowing developers to easily manipulate and process date and time operations.