What are the advantages of new Date and Time API in Java 8 over old Date API?

Some of the advantages of Java 8 Date Time API over existing Date API are:

  • Concurrency: Existing Date Time classes (such as java.util.Date and SimpleDateFormatter) are not thread-safe. This does not work well in concurrent applications. In new Date Time API, developer does not have to deal with concurrency issues while writing date-handling code.
  • Better Design: Date/Time classes prior to Java 8 have poor API design. For example, years in java.util.Date start at 1900, months start at 1, and days start at 0. It is not very intuitive. Java 8 Date Time API handles it very well.
  • No need for 3rd Party Libraries: With the popularity of third-party Date/Time libraries like Joda Time, Java has to make its native Date/Time API comparable. Now we can use the Java API instead of using 3rd party libraries.

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