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Update java新特性总结.md

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docs/java/new-features/java新特性总结.md
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@ -60,7 +60,7 @@ jshell 是 Java 9 新增的一个实用工具。为 Java 提供了类似于 Pyth
```java
List.of("Java", "C++");
Set.of("Java", "C++");
Map.of("Java", 1, "C++", 2)`;
Map.of("Java", 1, "C++", 2);
```
使用 `of()` 创建的集合为不可变集合，不能进行添加、删除、替换、 排序等操作，不然会报 `java.lang.UnsupportedOperationException` 异常。
@ -945,4 +945,4 @@ Java 15 并没有对此特性进行调整，继续预览特性，主要用于接
- Oracle Java14 record <https://docs.oracle.com/en/java/javase/14/language/records.html>
- java14-features <https://www.techgeeknext.com/java/java14-features>
- Java 14 Features : <https://www.journaldev.com/37273/java-14-features>
- What is new in Java 15: https://mkyong.com/java/what-is-new-in-java-15/
- What is new in Java 15: https://mkyong.com/java/what-is-new-in-java-15/