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for迴圈、while迴圈、字串

秋招】2019秋招總結二:460道Java後端高頻面試題 Java學習 09-07 1388 上一篇文章分享了我的 Java 轉行之路,本文主要分享 Java 後端面試高頻題目,重要程度按照背景顏色進行區分。由於個人水平有限,如若文章中有錯誤之處,敬請指正。

本文按照我平時複習的模組進行題目劃分,由於題目較多,未貼出答案。如果想要答案版資料,可加我的微信(微訊號:pcwl_Java),備註:面試題

第一篇:Java 轉行之路

第二篇:Java 面試必備知識點

第三篇:秋招面經集…


2020年阿里春招+秋招+JAVA後端開發面試題總結(附答案)
weixin_53170315的部落格 12-29 253 前言 大家好,首先說一下這套題目是我朋友分享給我的,他作為阿里校 的面試官,分享一下他經常問的一些問題。目的是希望幫助參加校 的舉一反三,當然也希望更多的同學能加入他的團隊!

基於BIO實現的Server端, 當建立了100個連線時, 會有多少個執行緒?如果基於NIO, 又會是多少個執行緒?為什麼?
通常來說基於NIO實現的Server端, 會用多少個執行緒去處理IO事件, 為什麼?
c glib和Java的動態代理相比, 具體有什麼不同?
用Executors.new Cached ThreadPool建立的



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        <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/banzhuanhu"><span class="name ">退役的bug程式設計師</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">原創不易,繼續加油,已收藏。</span><span class="date" title="2020-12-21 16:57:21">9天前</span><span class="new-opt-floating"><a class="btn-bt  btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt  btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14289490"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img 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"></span></a><span class="text">回覆</span><span class="colon">:</span><span class="text"></span><span class="new-comment">加油</span><span class="date" title="2020-12-22 19:39:45">8天前</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14306313"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" style="display:none" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><img class="comment-like-img clickedImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><span></span></div></div></div></li></ul></li></ul><ul class="comment-list"><li class="comment-line-box d-flex" data-commentid="14409241" data-replyname="weixin_44671737"><div style="display: flex;width: 100%;"> <a target="_blank" href="https://blog.csdn.net/weixin_44671737"><img src="https://profile.csdnimg.cn/E/3/5/3_weixin_44671737" username="weixin_44671737" alt="weixin_44671737" class="avatar"></a> <div class="right-box "> <div class="new-info-box clearfix"> <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/weixin_44671737"><span class="name ">興趣使然的程式猿</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">不錯,點個贊,也可以來看下我寫的哦</span><span class="date" title="2020-12-30 13:14:58">19小時前</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14409241"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" style="display:none" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><img class="comment-like-img clickedImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><span>1</span></div></div></div></li></ul><ul class="comment-list"><li class="comment-line-box d-flex" data-commentid="14405987" data-replyname="m0_50030753"><div style="display: flex;width: 100%;"> <a target="_blank" href="https://blog.csdn.net/m0_50030753"><img src="https://profile.csdnimg.cn/2/B/D/3_m0_50030753" username="m0_50030753" alt="m0_50030753" class="avatar"></a> <div class="right-box "> <div class="new-info-box clearfix"> <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">碼哥<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="碼哥"></a><a target="_blank" href="https://blog.csdn.net/m0_50030753"><span class="name ">Jill_bony</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">vector執行緒安全吧,效率慢,底層程式碼方法有鎖</span><span class="date" title="2020-12-30 10:12:49">22小時前</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14405987"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" style="display:none" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><img class="comment-like-img clickedImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><span>1</span></div></div></div></li></ul><ul class="comment-list"><li class="comment-line-box d-flex" data-commentid="14400484" data-replyname="a12355556"><div style="display: flex;width: 100%;"> <a target="_blank" href="https://blog.csdn.net/a12355556"><img src="https://profile.csdnimg.cn/B/C/0/3_a12355556" username="a12355556" alt="a12355556" class="avatar"></a> <div class="right-box "> <div class="new-info-box clearfix"> <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/a12355556"><span class="name ">霧進</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">學到了,Mark一波~學到了,Mark一波~</span><span class="date" title="2020-12-29 19:20:14">昨天</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14400484"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" 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">竹蜻蜓飛行</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">學到了,點贊支援,一起加油 (ง •̀o•́)ง (ง •̀o•́)ง</span><span class="date" title="2020-12-29 16:15:33">昨天</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14397562"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" style="display:none" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><img class="comment-like-img clickedImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><span>1</span></div></div></div></li></ul><ul class="comment-list"><li class="comment-line-box d-flex" data-commentid="14396928" data-replyname="qq_40542534"><div style="display: flex;width: 100%;"> <a target="_blank" href="https://blog.csdn.net/qq_40542534"><img src="https://profile.csdnimg.cn/D/D/E/3_qq_40542534" username="qq_40542534" alt="qq_40542534" class="avatar"></a> <div class="right-box "> <div class="new-info-box clearfix"> <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/qq_40542534"><span class="name ">strive_day</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">文章知識點挺全面的,看懂了,等空閒時間操作一下,感謝博主分享。</span><span class="date" title="2020-12-29 15:47:19">昨天</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14396928"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img class="comment-like-img comment-like-img-hover" style="display:none" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><img class="comment-like-img clickedImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentActiveHeart.png" title="點贊"><span>1</span></div></div></div></li></ul><ul class="comment-list"><li class="comment-line-box d-flex" data-commentid="14394766" data-replyname="weixin_44671737"><div style="display: flex;width: 100%;"> <a target="_blank" href="https://blog.csdn.net/weixin_44671737"><img src="https://profile.csdnimg.cn/E/3/5/3_weixin_44671737" username="weixin_44671737" alt="weixin_44671737" class="avatar"></a> <div class="right-box "> <div class="new-info-box clearfix"> <a class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/weixin_44671737"><span class="name ">興趣使然的程式猿</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">學習的道路上一起進步,也期待你的關注與支援!</span><span class="date" title="2020-12-29 14:08:52">昨天</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span 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class="comment-tag" target="_blank" href="https://blog.csdn.net/blogdevteam/article/details/103478461">愛碼士<img class="comment-tag-img" src="https://csdnimg.cn/release/blogv2/dist/components/img/commentTagArrowWhite.png" title="愛碼士"></a><a target="_blank" href="https://blog.csdn.net/weixin_44671737"><span class="name ">興趣使然的程式猿</span></a><span class="colon">:</span><span class="floor-num"></span><span class="new-comment">寫的不錯 共勉~,最近也在開始寫部落格。大佬們來翻牌啊!</span><span class="date" title="2020-12-29 13:11:38">昨天</span><span class="new-opt-floating"><a class="btn-bt btn-reply" data-type="reply" data-flag="true">回覆</a><a class="btn-bt btn-report"><img class="btn-report-img" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentMore.png" title=""><span data-type="report" class="hide-report">舉報</span></a></span></div><div class="comment-like " data-commentid="14393834"><img class="comment-like-img unclickImg" src="https://csdnimg.cn/release/blogv2/dist/pc/img/commentUnHeart.png" title="點贊"><img 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2020年10月 後端開發面試總結(一)(個人心得) qq_21829121的部落格 10-30 736 2020年10月 後端 開發面試 總結(一)(個人心得) 目錄2020年10月 後端 開發面試 總結(一)(個人心得)01-為什麼選擇 Java軟體 開發的道路02-面試使用的 聘軟體03-簡歷的建議04-面試的過程05-反思 01-為什麼選擇 Java軟體 開發的道路 一個剛打算入行的個人經歷,大佬勿噴。自己的學習生涯其實挺坎坷的,高中的時候比較貪玩,沉迷於電腦遊戲(LOL)等,導致高考成績一般般。15年就讀一個很普通的大專學校,我是憑興趣選擇的自己的專業<計算機與網路技術>,這裡還是很感謝父母的支援的。剛上 刷完500道BAT面試題,我能去面試大廠了嗎? xingduan5153的部落格 01-03 1193 面試之前先刷幾篇面經,或者做幾道熱門 面試題,想必是大家很熟悉的一種複習方式了,就像我們當年經常做五年高考三年模擬一樣。但是可不要把 面試題和麵經當成你的主要複習方式,它只是錦上添花,絕非雪中送炭!


面經的意義

面經是別人的面試經驗,所謂前車之鑑,後事之師。我們可以通過麵筋對自己的不足查缺補漏,卻不能把這些面試題等同於我們所要掌握的知識點。原因很簡單,兩篇面經可能會有很多的重複知識點,100…


2020你熬夜背過的那些 Java 後端 開發 面試題,含淚整理出來... 12-30 春招+ 秋招+ 】 目錄 前言 Java記憶體模型 1、我們 開發人員編寫的 Java程式碼是怎麼讓電腦認識的 Java檔案編譯的過程 2、為什麼說 java是跨平臺語言... 【年末 總結】2020年 java 面試題合集, 春招+ 秋招整理(附答案) 12-27 不論是校 還是 都避免不了各種⾯試、筆試,如何去準備這些東⻄就顯得格外重要。不論是筆試還是⾯試都是有章可循的,我這個“有章可循”說的意思只是說應... 2019年春招彙總,技術類校千道面試題,幾百份大廠面經(附答案+考點) weixin_45235982的部落格 06-18 3367 由於篇長限制,在這裡小編都是用連結來代替的,整理不易希望大家多多點贊關注,謝謝。 小夥伴們需要資料的話,下方有資料獲取方式 Java千道 面試題 一、 JavaSE部分 二、 JavaEE部分 三、JDBC程式設計 四、JDBC程式設計,計算機網路,作業系統,演算法與資料結構 五,設計模式,場景題 《點選, Java學習、面試;文件、視訊資源免費獲取》, Java面經 【VIVO】vivo Java 後端 秋招提前批面... 位元組跳動後端工程師面試經歷 blaze_jack 12-05 1747 一面是上來就問基礎,還是老套的c++虛擬函式,多型載入過程(c和 java)。我好久沒看c了,答不上來。

然後就是程序和執行緒的區別,哪些資源是共享的,程序之間的通訊方式,尤其是fork函式,出了道題目,答不上來,瞎猜了個答案,明顯猜錯了。

又問計算機網路的模型,我哪裡記得。get和post的區別,就答了一下get沒有body,然後又扯了幾個,感覺答得不好。

問我怎麼檢視資料庫語句效率,還好實習的…


2020年 Java面試中頻繁被問到的點 總結合集( 春招+ 秋招+ ) 12-30 StringBuffer表示內容可以修改的字串,String覆蓋了equals()方法和hashcode()方法,而StringBuffer沒有覆蓋兩個方法,,所以StringBuffer物件儲存到 java集合類中時會出現... 2020年 Java後臺 開發 秋招面試 總結_pitt1997的部落格 12-18 記錄一下自己剛結束的2020 秋招之旅,從8月初開始到9月底結束,感慨很多,期間有激動、焦慮、失望等各種情緒,雖然沒有拿到大廠的offer,但是收穫還是蠻多的,也發現自己... 秋招沒拿到心儀offer,春招還有機會嗎?該如何準備? Java學習 01-13 1509 最近很多 秋招不理想或者考研不理想的同學問我這樣一個問題:網際網路公司 春招還有沒有機會?其實我相信大部分同學問這個問題的時候,心裡都是有答案的,只不過想找一個他認為可以讓他安心的人說出這個答案。那今天我就來當這個人,可以很明確的告訴大家: 春招有機會。基本上每家公司都是有 春招的,本文分享下我個人對 春招的一些看法以及給準備 春招的同學一些建議(僅供參考)。

一、春招的特點

說明:本文針對的是一般…


vivo軟體開發工程師(Java方向)(2019年春招 趙小雷的部落格 04-10 2088 vivo軟體 開發工程師( Java方向)(2019年 春招

總結

2019-03-27 初面
2019-04-02 hr面
2019-04-04 簽約通知

首先,文章開頭還是要感謝我的面試官給我這個機會,讓我過了這個面試。感謝他們相信我的能力。我當時已經經歷了秋招春招,壓力太大了,特別是2019年那個春招相當寒冷,如果沒過,我可能就崩潰了…


...2020 Java高階 開發 面試題合集包涵( 春招+ 秋招+ ... 12-26 StringBuffer表示內容可以修改的字串,String覆蓋了equals()方法和hashcode()方法,而StringBuffer沒有覆蓋兩個方法,,所以StringBuffer物件儲存到 java集合類中時會出現... 2019年 秋招 2020 春招 java中高階 面試題彙總_qq_4317021... 10-12 13、 Java記憶體模型 http://blog.csdn.net/zhaojw_420/article/details/70477903 二、資料庫(MySql) 1、 面試題: http://blog.csdn.net/zhaojw_420/article/deta... 大學四年Java後端學習路線規劃,所有私藏資料我都貢獻出來了,不看畢業肯定後悔!!! 阿甘的碼路 04-09 4326 永遠不要跟著學校的節奏走,一定要自學,按照自己的路線走

想吃IT飯別管學沒學,這些事情統統做起來先,很重要!!!
首先我不是來打廣告的,此篇內容會涉及到很多產品,我只是貢獻出來學習工具途徑,讀者自己衡量。

github開通賬號,將自己以後所有的專案放到這個上面管理,別問是什麼先開通
開通雲筆記(印象筆記或者有道雲筆記),以後所有的學習筆記統統放進去,不丟失
開通CSDN賬號,簡書賬號,至少一…


java面試題文件(QA) javanewber的部落格 04-27 9085 關注公眾號『 Java專欄』,傳送『面試』 獲取該專案完整PDF [外鏈圖片轉存失敗,源站可能有防盜鏈機制,建議將圖片儲存下來直接上傳(img-dzm8O4kR-1587954091979)(qr_code.jpg)]

基礎篇

1、 Java語言有哪些特點
2、面向物件和麵向過程的區別
3 、八種基本資料型別的大小,以及他們的封裝類
4、識別符號的命名規則。
5、instanceof 關鍵字的…


2020年京東 Java研發崗 面經(面試經歷+真題 總結+經驗分享)! 12-26 本篇先以日曆形式回顧 秋招之路,方便各位參考某廠的處理進度;然後是 總結歸納春 秋招 Java 面試題庫;最後做個 總結還有展望,開始新的征程~面試經歷京東面試真題面試經驗... ...京東 秋招 Java 開發崗面經,面歷+原題回顧+面試心... 12-5 本篇先以日曆形式回顧 秋招之路,方便各位參考某廠的處理進度;然後是 總結歸納春 秋招 Java 面試題庫;最後做個 總結還有展望,開始新的征程~面試經歷 京東面試真題 面試經驗... ©️2020 CSDN 面板主題: 黑客帝國 設計師:上身試試 返回首頁