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Snailclimb merged 1 commit into from
Oct 26, 2023
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Update java9.md #2193

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4 changes: 2 additions & 2 deletions docs/java/new-features/java9.md
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Expand Up @@ -138,7 +138,7 @@ try (scanner;writer) {

**什么是 effectively-final 变量？** 简单来说就是没有被 `final` 修饰但是值在初始化后从未更改的变量。

正如上面的代码所演示的那样，即使 `writer` 变量没有被显示声明为 `final`，但它在第一次被复制后就不会改变了，因此，它就是 effectively-final 变量。
正如上面的代码所演示的那样，即使 `writer` 变量没有被显示声明为 `final`，但它在第一次被赋值后就不会改变了，因此，它就是 effectively-final 变量。

## Stream & Optional 增强

Expand Down Expand Up @@ -258,4 +258,4 @@ System.out.println(currentProcess.info());
- New Features in Java 9:https://www.baeldung.com/new-java-9
- Java – Try with Resources：https://www.baeldung.com/java-try-with-resources

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