
Understand default methods in interfaces, introduced in Java 8, which provide common functionality with a body. Learn how this avoids breaking changes when adding new methods.
Functional Interface Part 3
Explore the predefined functional interface consumer in Java, showing how it accepts a single input and returns no value, with Java 8 examples and an email demo.
Compare sequential streams and parallel streams by filtering even numbers from a 70,000-integer list and collecting results; parallel streams deliver up to five times the performance of sequential streams.
Learn to retrieve current local time details and create specific dates and times using LocalDate, LocalTime, and LocalDateTime, with examples like 15th August 1947 and 2019 March 5th.
Explore private methods in interfaces from Java 9 onwards to reuse logic and reduce redundancy. A helper generates random numbers used by display methods and isn't visible to implementing classes.
Discover how jlink creates a custom runtime image by including only needed modules, saving memory on small devices. The lecture demonstrates building a Hello module and running it with Java.
Explore whether java long-term support is provided, using java -version checks to compare versions, and confirm that java 11 offers long-term support.
Steps:
Please create a java project
Copy contents from the attached zip file into ‘src’ folder
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