New features in java 9

Java 9, released in 2017, introduced several new features and improvements to the Java programming language. Here are some of the notable new features in Java 9:

1. Java Platform Module System (JPMS): Java 9 introduced a new module system, which allows developers to organize their code into modules and manage dependencies more effectively.
2. Optional Features: Java 9 introduced a new way to declare optional features, which allows developers to provide alternative implementations for certain features.
3. Local-Variable Type Inference: Java 9 introduced a new feature called local-variable type inference, which allows developers to omit the type declaration for local variables.
4. Private Methods in Interfaces: Java 9 allowed developers to declare private methods in interfaces, which can be used to provide implementation details for methods.
5. HTTP/2 Support: Java 9 introduced support for HTTP/2, a new version of the HTTP protocol that provides better performance and efficiency.
6. Improved Garbage Collection: Java 9 introduced several improvements to the garbage collection algorithm, including a new garbage collector called the "G1" garbage collector.
7. Improved JavaFX: Java 9 included several improvements to the JavaFX library, including support for new features such as 3D graphics and improved performance.
8. Improved Java Mission Control: Java 9 included several improvements to the Java Mission Control tool, which provides developers with a way to monitor and debug Java applications.
9. Improved Java Flight Recorder: Java 9 included several improvements to the Java Flight Recorder tool, which provides developers with a way to monitor and analyze the performance of Java applications.
10. Improved Java Compiler: Java 9 included several improvements to the Java compiler, including support for new language features and improved performance.
11. Improved Java Runtime: Java 9 included several improvements to the Java runtime, including support for new features and improved performance.
12. Improved Java Security: Java 9 included several improvements to the Java security features, including support for new security protocols and improved encryption.
13. Improved Java Networking: Java 9 included several improvements to the Java networking features, including support for new protocols and improved performance.
14. Improved Java XML Processing: Java 9 included several improvements to the Java XML processing features, including support for new XML features and improved performance.
15. Improved Java JSON Processing: Java 9 included several improvements to the Java JSON processing features, including support for new JSON features and improved performance.

Some of the other notable features in Java 9 include:

• Improved support for lambda expressions: Java 9 included several improvements to the lambda expression feature, including support for new lambda expression syntax and improved performance.
• Improved support for method references: Java 9 included several improvements to the method reference feature, including support for new method reference syntax and improved performance.
• Improved support for functional interfaces: Java 9 included several improvements to the functional interface feature, including support for new functional interface syntax and improved performance.
• Improved support for varargs: Java 9 included several improvements to the varargs feature, including support for new varargs syntax and improved performance.
• Improved support for try-with-resources: Java 9 included several improvements to the try-with-resources feature, including support for new try-with-resources syntax and improved performance.

Overall, Java 9 introduced several new features and improvements that make it easier to develop and maintain Java applications.