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Sep 16, 2021
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Update Java基础知识.md #1398

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2 changes: 1 addition & 1 deletion docs/java/basis/Java基础知识.md
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Expand Up @@ -252,7 +252,7 @@ return 用于跳出所在方法，结束该方法的运行。return 一般有两

Java 泛型（generics）是 JDK 5 中引入的一个新特性, 泛型提供了编译时类型安全检测机制，该机制允许程序员在编译时检测到非法的类型。泛型的本质是参数化类型，也就是说所操作的数据类型被指定为一个参数。

Java 的泛型是伪泛型，这是因为 Java 在编译期间，所有的泛型信息都会被擦掉，这也就是通常所说类型擦除 。
Java 的泛型是伪泛型，这是因为 Java 在运行期间，所有的泛型信息都会被擦掉，这也就是通常所说类型擦除 。

```java
List<Integer> list = new ArrayList<>();
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