explain new feature in java (labda, functional interface, default) , what is stream api , filter value not contain null, what is microservice, explain in real time , what is http vs https, inner join , outer join

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Explanation of Java features, Stream API, microservices, HTTP vs HTTPS, and SQL joins.

Lambda expressions allow for concise syntax to implement functional interfaces.
Stream API provides a way to process collections of objects in a functional style.
Microservices architecture breaks down applications into smaller, independent services.
HTTP is unencrypted protocol, HTTPS is encrypted using SSL/TLS for secure communication.
Inner join combines rows from two tables based on a related column, outer join includes unmatched rows.

explain new feature in java (labda, functional interface, default) , what is stream api , filter value not contain null, what is microservice, explain in real time , what is http vs https, inner join , outer join

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