{"action":"opened","issue":{"url":"https://api.github.com/repos/android-cn/android-discuss/issues/109","labels_url":"https://api.github.com/repos/android-cn/android-discuss/issues/109/labels{/name}","comments_url":"https://api.github.com/repos/android-cn/android-discuss/issues/109/comments","events_url":"https://api.github.com/repos/android-cn/android-discuss/issues/109/events","html_url":"https://github.com/android-cn/android-discuss/issues/109","id":63897749,"number":109,"title":"[问答]HashMap有哪些考察点？","user":{"login":"miao1007","id":8223766,"avatar_url":"https://avatars.githubusercontent.com/u/8223766?v=3","gravatar_id":"","url":"https://api.github.com/users/miao1007","html_url":"https://github.com/miao1007","followers_url":"https://api.github.com/users/miao1007/followers","following_url":"https://api.github.com/users/miao1007/following{/other_user}","gists_url":"https://api.github.com/users/miao1007/gists{/gist_id}","starred_url":"https://api.github.com/users/miao1007/starred{/owner}{/repo}","subscriptions_url":"https://api.github.com/users/miao1007/subscriptions","organizations_url":"https://api.github.com/users/miao1007/orgs","repos_url":"https://api.github.com/users/miao1007/repos","events_url":"https://api.github.com/users/miao1007/events{/privacy}","received_events_url":"https://api.github.com/users/miao1007/received_events","type":"User","site_admin":false},"labels":[],"state":"open","locked":false,"assignee":null,"milestone":null,"comments":0,"created_at":"2015-03-24T03:56:05Z","updated_at":"2015-03-24T03:56:05Z","closed_at":null,"body":"虽然我经常用HashMap，但是我还没有真正接触过正式的面试，所以想问一下HashMap在面试时经常考察什么？\r\n\r\n目前我已经了解到的有：\r\n\r\n* HashMap实现了Map接口，无同步锁；\r\n* HashMap按照HashCode把key-value均匀的填入数组中，如果出现冲突，就使用链地址法挂上链表遍历；\r\n\r\n除了上面两点，还有什么可能出现的考点吗？求各位前辈赐教"}}