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Java / Java8 streams

Difference between the old and new Date Time API in Java 8.

Old API.New Date and Time API (Java 8).
Date object is mutable.In Java 8, all date and time classes like LocalDate, LocalTime, or LocalDateTime are Immutable.
SimpleDateFormat is not thread-safe.Formatter is thread-safe.
Old Date and Calendar API has just one class Date to represent date and time.Java 8 has separated classes for Date and Time e.g. LocalDate and LocalTime.
In the old Date and Calendar API, the Year starts with 1900, month starts from 0, and day starts from 1.Java 8 has got corrected numbers.

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