Java 11 and Java 14 are two significant releases in the Java platform, each bringing several improvements, features, and changes. Here are some key differences between Java 11 and Java 14.
1. JEPs (Java Enhancement Proposals)
- Java 11 introduced various JEPs such as the HTTP Client (JEP 321), Epsilon: A No-Op Garbage Collector (JEP 318), and Launch Single-File Source-Code Programs (JEP 330).
- Java 14 introduced new JEPs including Pattern Matching for instanceof (JEP 305), Non-Volatile Mapped Byte Buffers (JEP 352), and Packaging Tool (JEP 343).
2. Switch Expressions
- Java 11 introduced the initial version of switch expressions as a preview feature.
- Java 14 enhanced switch expressions by making them a standard feature and adding additional functionality, such as allowing multiple constants in a single case label and introducing a new yield statement.
3. Records
- Java 14 introduced records, a new language feature aimed at reducing boilerplate code for simple data-carrying classes.
- Java 11 does not include records.
4. Garbage Collectors
- Both Java 11 and Java 14 include various garbage collectors, but Java 14 may introduce further refinements and optimizations.
5. JVM Improvements
- Java 11 and Java 14 include optimizations and improvements to the JVM, enhancing performance, stability, and security.
6. Text Blocks
- Java 13 introduced text blocks as a preview feature, allowing multi-line string literals.
- Java 14 made text blocks a standard feature, refining and stabilizing this functionality.
7. Deprecations and Removals
- Java 14 may include additional deprecations and removals compared to Java 11. For example, certain APIs or features may be deprecated or removed in Java 14 that were present in Java 11.
8. New APIs
- Java 14 may introduce new APIs and classes, expanding the capabilities of the Java platform compared to Java 11.
9. Language and API Enhancements
- Both Java 11 and Java 14 include various language and API enhancements, bug fixes, and performance optimizations, improving developer productivity and efficiency.
10. Preview Features
- Java 14 may include additional preview features compared to Java 11. Preview features are introduced to gather feedback from the community before being stabilized in future releases.
These are some of the key differences between Java 11 and Java 14.
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