add logseq-java
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logseq-java/pages/泛型.md
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logseq-java/pages/泛型.md
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- 含有不同类型数据时,集合在 [[向下转型]] 时报错
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- 用来规范集合中元素类型的一种技术
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- 格式
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- <数据类型>
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- [[泛型类]]
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- [[泛型方法]]
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- [[泛型接口]]
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- [[泛型擦除]]
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- 代码在编译期间,有编译器自动将Student替换原有的E
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- ```java
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List<Student> student = new ArrayList<Student>();
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```
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