{"action":"closed","issue":{"url":"https://api.github.com/repos/dongyuanlongwang/coder/issues/397","repository_url":"https://api.github.com/repos/dongyuanlongwang/coder","labels_url":"https://api.github.com/repos/dongyuanlongwang/coder/issues/397/labels{/name}","comments_url":"https://api.github.com/repos/dongyuanlongwang/coder/issues/397/comments","events_url":"https://api.github.com/repos/dongyuanlongwang/coder/issues/397/events","html_url":"https://github.com/dongyuanlongwang/coder/issues/397","id":375334706,"node_id":"MDU6SXNzdWUzNzUzMzQ3MDY=","number":397,"title":"HashMap 在resize 是否会形成闭环","user":{"login":"dongyuanlongwang","id":17469224,"node_id":"MDQ6VXNlcjE3NDY5MjI0","avatar_url":"https://avatars1.githubusercontent.com/u/17469224?v=4","gravatar_id":"","url":"https://api.github.com/users/dongyuanlongwang","html_url":"https://github.com/dongyuanlongwang","followers_url":"https://api.github.com/users/dongyuanlongwang/followers","following_url":"https://api.github.com/users/dongyuanlongwang/following{/other_user}","gists_url":"https://api.github.com/users/dongyuanlongwang/gists{/gist_id}","starred_url":"https://api.github.com/users/dongyuanlongwang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongyuanlongwang/subscriptions","organizations_url":"https://api.github.com/users/dongyuanlongwang/orgs","repos_url":"https://api.github.com/users/dongyuanlongwang/repos","events_url":"https://api.github.com/users/dongyuanlongwang/events{/privacy}","received_events_url":"https://api.github.com/users/dongyuanlongwang/received_events","type":"User","site_admin":false},"labels":[{"id":726492563,"node_id":"MDU6TGFiZWw3MjY0OTI1NjM=","url":"https://api.github.com/repos/dongyuanlongwang/coder/labels/dataConstruction","name":"dataConstruction","color":"d5ff9e","default":false}],"state":"closed","locked":false,"assignee":null,"assignees":[],"milestone":{"url":"https://api.github.com/repos/dongyuanlongwang/coder/milestones/1","html_url":"https://github.com/dongyuanlongwang/coder/milestone/1","labels_url":"https://api.github.com/repos/dongyuanlongwang/coder/milestones/1/labels","id":2896686,"node_id":"MDk6TWlsZXN0b25lMjg5NjY4Ng==","number":1,"title":"java基础","description":"2. 对比Exception 和 error，运行时异常和一般异常的区别？\r\n    #235\r\n3. 谈谈final，finally和finalize有什么不同？#236\r\n5. 理解String ，StringBuffer StringBuilder 的本质区别 \r\n     String 现在做了很多的优化，比如说字符串凭借，编译的时候，直接切换成StringBuilder.从而避免中间String对象的大量生成。至于StringBuffer  作为一个线程安全的存在，可以说，之后高并发的时候，才会考虑。\r\n\r\n6. 谈谈java 反射机制，动态代理的原理？\r\n7.  int 和integer 的区别，integer值的缓存范围是什么？\r\n8.  ","creator":{"login":"dongyuanlongwang","id":17469224,"node_id":"MDQ6VXNlcjE3NDY5MjI0","avatar_url":"https://avatars1.githubusercontent.com/u/17469224?v=4","gravatar_id":"","url":"https://api.github.com/users/dongyuanlongwang","html_url":"https://github.com/dongyuanlongwang","followers_url":"https://api.github.com/users/dongyuanlongwang/followers","following_url":"https://api.github.com/users/dongyuanlongwang/following{/other_user}","gists_url":"https://api.github.com/users/dongyuanlongwang/gists{/gist_id}","starred_url":"https://api.github.com/users/dongyuanlongwang/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/dongyuanlongwang/subscriptions","organizations_url":"https://api.github.com/users/dongyuanlongwang/orgs","repos_url":"https://api.github.com/users/dongyuanlongwang/repos","events_url":"https://api.github.com/users/dongyuanlongwang/events{/privacy}","received_events_url":"https://api.github.com/users/dongyuanlongwang/received_events","type":"User","site_admin":false},"open_issues":19,"closed_issues":26,"state":"open","created_at":"2017-11-08T08:12:36Z","updated_at":"2018-10-30T07:06:02Z","due_on":null,"closed_at":null},"comments":1,"created_at":"2018-10-30T06:06:46Z","updated_at":"2018-10-30T07:06:02Z","closed_at":"2018-10-30T07:06:02Z","author_association":"OWNER","body":"1. java7 中resize中的链表重新分配，为重新计算hash，然后链表倒置，从而导致了闭环现象的产生\r\n2. java8 中resize中的链表重新分配，为`(e.hash & oldCap) == 0` 【oldCap 必然为2的幂数，即为10000........。进行且操作。如果不为0，表示会落到新桶，中，而为0还在旧桶中。】还是原来链表的顺序，没有进行倒置，所以不会形成闭环现象。"}}
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