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Java 8 vs Java 11 vs Java 17 Comparison and Key Features

Published at

11/27/2024

Categories

java

Author

Code Green

Main Article

https://dev.to/codegreen/java-8-vs-java-11-vs-java-17-comparison-and-key-features-1pi5

Categories

1 categories in total

Java 8 vs Java 11 vs Java 17 Comparison and Key Features

Comparison of Key Features in Java 8, 11, and 17

Feature	Java 8	Java 11	Java 17
Lambda Expressions	Introduced lambda expressions for functional programming.	No new changes; continued support.	No new changes; continued support.
Stream API	Added Stream API for processing sequences of elements.	No new changes; continued support.	No new changes; continued support.
Optional Class	Introduced `Optional` to avoid null references.	No new changes; continued support.	No new changes; continued support.
Default Methods in Interfaces	Allowed interfaces to have default methods.	No new changes; continued support.	No new changes; continued support.
New Date and Time API	Introduced `java.time` package.	No new changes; continued support.	No new changes; continued support.
Nashorn JavaScript Engine	Introduced Nashorn for executing JavaScript.	Deprecated in later versions.	Removed Nashorn.
Garbage Collection	G1 Garbage Collector became the default.	Improved G1 GC, better performance.	Further improvements in G1 GC and new garbage collection options.
HTTP Client API	Not included.	Introduced a new HttpClient API.	Continued support and enhancements.
String Methods	New methods like `String.join()` added.	No new changes; continued support.	New methods such as `String.repeat()`, `String.lines()`, and `String.strip()`.
Local-Variable Type Inference	Not included.	Introduced `var` for local variable type inference.	Continued support for `var`.
Flight Recorder	Not available.	Introduced as an open-source feature.	Continued support with enhancements.
Sealed Classes	Not included.	Not included.	Introduced sealed classes for more control over inheritance.
Pattern Matching for `instanceof`	Not included.	Not included.	Introduced for cleaner type checks.
Enhanced Switch Expressions	Not included.	Not included.	Introduced enhanced switch expressions for simpler syntax.
Deprecation of Applet API	Not included.	Deprecated the Applet API.	Continued deprecation; Applet API removed in future versions.

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