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- Java基础知识.md

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Original file line number	Diff line number	Diff line change
`@@ -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`
`252`	`252`
`253`	`253`	`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。`
`254`	`254`
`255`		`-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。`
	`255`	`+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。`
`256`	`256`
`257`	`257`	```java
`258`	`258`	`List<Integer> list = new ArrayList<>();`

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