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面渣逆袭集合框架篇最后的Hashmap putVal #68

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xuyuechi opened this issue Mar 13, 2023 · 1 comment
Open

面渣逆袭集合框架篇最后的Hashmap putVal #68

xuyuechi opened this issue Mar 13, 2023 · 1 comment

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@xuyuechi
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这里这个是“存在”吧,如果有值返回老值,然后Hashset的add比较!=null,返回false表明插入失败

@itwanger
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这一部分在哪个位置啊,,😁

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