How can date type data be defined in Java?

In Java, date data types are typically represented using the java.util.Date class. You can create a Date object that represents the current time using new Date(), or you can create a Date object that represents a specific time using new Date(long date), where long date is a timestamp in milliseconds.

Java 8 and beyond also introduced the java.time package, which includes a set of new date and time classes such as LocalDate, LocalTime, and LocalDateTime, allowing for more flexible and convenient handling of date and time data. With these classes, it is easier to represent different types of time data like dates, times, and date times, and provide rich methods and functions for date and time operations and calculations.