New JDK Features

Java 8

• PermGen replaced by Metaspace
• Optional
• Lamba
  • Why is it there apart from synthetic sugar ?
    • Does not create objects
    • java_lambdas_jvm_internals_deep_dive
• Stream api
• Default and static methods in Interfaces
  • Why Default
    • To introduce backward compatibility - (of collection framework ?)
• Concurrency improvements
• forEach()

Java 9

• Set.of()
• modules

Java 11

Java 17

Java 21

• Virtual threads

References

Good Articles

Java 8 - https://medium.com/@ucgorai/exploring-the-key-features-of-java-11-b1efb8425690 java 9 -

• https://medium.com/@ucgorai/the-java-9-revolution-new-features-every-developer-should-know-c18d134229c6
• https://medium.com/@realNameHiddenN/java-10s-set-of-explained-b2b6d79e4357 Java 11 - https://freedium-mirror.cfd/https://medium.com/@ucgorai/exploring-the-key-features-of-java-11-b1efb8425690 https://www.geeksforgeeks.org/java/arraylist-foreach-method-in-java/