Java开发面试的相关内容

[帮助文档] 如何通过Java SDK提交Spark作业、查询Spark作业的状态和日志信息、结束Spark作业以及查询Spark历史作业

AnalyticDB MySQL湖仓版（3.0）集群支持通过Java SDK开发Spark应用和Spark SQL作业。本文介绍通过Java SDK提交Spark作业、查询Spark作业的状态和日志信息、结束Spark作业以及查询Spark历史作业的操作步骤。

Java开发面试题 | 2023

Java基础接口和抽象类的区别？Java动态代理HashMap 底层实现及put元素的具体过程currenthashmap底层实现原理？map可以放null值吗，currenthashmap为什么不能放null值synchronze和reetrantlock区别？怎样停止一个运行中的线程？什么是悲...

Java Web开发-Web应用、Tomcat、HTTP请求与响应

17 课时 |

1440 人已学 |

加入学习

Java Web开发系列课程 - Spring框架入门

25 课时 |

30070 人已学 |

加入学习

Java面向对象开发

106 课时 |

23878 人已学 |

加入学习

凭借Java开发进阶面试秘籍（核心版）逆流而上

最近参加了面试或者身边有朋友在面试的兄弟有没有发现，现在的面试不仅会问八股文，还会考察框架、项目实战、算法数据结构等等，需要准备的越来越多。其实面试的时候，并不是要求你所有的知识点都会，而是关键的问题...

毕业季-Java分布式开发面试题

缓存击穿，穿透，雪崩缓存的目标是提高程序的运行效率。mysql并发量过大，我们可以把数据放入到redis里面来分摊mysql的压力。缓存击穿是指缓存的热点数据到期了，同时并发查询该数据的线程都涌向数据库，导致数据库压力瞬间倍增。这个就是缓存击穿。缓存击穿的应对手段：1.缓存永不过期。2.使用锁（本地...

大厂贬值裁员，我却凭借Java开发进阶面试秘籍（核心版）逆流而上

最近参加了面试或者身边有朋友在面试的兄弟有没有发现，现在的面试不仅会问八股文，还会考察框架、项目实战、算法数据结构等等，需要准备的越来越多。其实面试的时候，并不是要求你所有的知识点都会，而是关键的问题答到点子上！这份《Java 开发进阶面试秘籍（核心版）》由 P8 面试官整体把控，目前已经更新了 3...

14道Java开发岗面试题

开头大家好,我是程序员Manor,我希望自己能成为国家复兴道路的铺路人,大数据领域的耕耘者,平凡但不甘于平庸的人。今天为大家带来14道Java开发岗面试题1、问：short s1 = 1; s1 = s1 + 1;有什么错? short s1 = 1; s1 += 1;有什么错?答：对于short ...

Java开发三年，花费半年时间学完这些技术栈，面试定级阿里P7

现在 Java 相关岗位薪资越来越高、涨幅越来越大。通过职友集数据可以查看，以北京 Java 相关岗位为例，其中【20k-30k】薪酬的 Java 工程师，占到了整体从业者的 30.8%！北京 Java 工程师「工资收入水平」如果你在中小型公司，其实 20K 左右，几乎已经是个极限，薪资想继续...

Java高级开发高频面试题(十二)

🍊 集群架构设计为了提高Elasticsearch服务的整体可用性，需要合理的部署集群架构。Elasticsearch集群采用主节点、数据节点和协调节点分离的架构，即将主节点和数据节点分开布置，同时引入协调节点，以实现负载均衡。在5.x版本以后，数据节点还可进一步细分为Hot-Warm的架构模式。...

Java高级开发高频面试题(十一)

🍊 磁盘优化Elasticsearch的性能会受到磁盘延迟的影响，因此为了优化磁盘性能，建议使用高速存储设备如SSD或NVMe，并选择合适的RAID级别。尽可能选择固态硬盘(SSD)，因为它比任何旋转介质机械硬盘或磁带写入数据时都会有较大的IO提升，特别是在随机写和顺序写方面。同时，应确保系统I/...

Java高级开发高频面试题(十)

🍊 Dubbo容错机制容错机制介绍：在分布式系统中，由于网络不稳定、服务提供者宕机等原因，可能会出现服务调用失败的情况。为了提高系统的可靠性，Dubbo提供了多种容错机制。Failover（失败重试）：当服务调用失败时，Failover机制会自动重试其他服务提供者。重试...

共有57条

< 1 2 3 4 ... 6 >

跳转至： GO

更新时间 2024-03-15 16:11:30

本页面内关键词为智能算法引擎基于机器学习所生成，如有任何问题，可在页面下方点击"联系我们"与我们沟通。

产品推荐

{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1iJox2Br0gK0jSZFnXXbRRXXa-200-200.png","contentLink":"https://www.aliyun.com/product/arms","title":"应用实时监控服务 ARMS","des":"应用实时监控服务ARMS 包含前端监控，应用监控、云拨测等模块，覆盖小程序、APP、网站等客户端及ECS、Serverless、容器等环境，为分布式、微服务应用提供端到端性能监控与全链路追踪诊断， 让运维监控更加高效便捷。","link1":"https://common-buy.aliyun.com/?spm=5176.26849858.J_5253785160.3.3887564cBbVoUd&commodityCode=arms_serverless_public_cn","btn1":"立即开通（每月50GB额度）","link2":"https://common-buy.aliyun.com/?spm=5176.8140086.1280672.buy11.30f2bb91uujI1A&commodityCode=arms_app_bag#/buy","btn2":"资源包购买（旧版计费）","btn3":"帮助文档","link3":"https://help.aliyun.com/zh/arms/application-monitoring/getting-started/overview?spm=a2c4g.11186623.0.0.502edf6bVmoHkw","infoGroup":[{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://www.aliyun.com/activity/middleware/ObservabilityConference2022?spm=5176.26849857.J_5253785160.2.1f4415e9ite0CU","firstContentName":"新老用户限时钜惠","lastContentLink":"https://www.aliyun.com/activity/middleware/observability","lastContentName":"最新实践 & 公开课"}},{"infoName":"相关推荐","infoContent":{"firstContentLink":"https://www.aliyun.com/activity/middleware/Application_monitoring?spm=5176.8140086.J_4084816840.3.1db8be45A6RecL","firstContentName":"应用监控-Java监控","lastContentName":"前端监控-Web应用监控","lastContentLink":"https://www.aliyun.com/activity/middleware/web_monitoring?spm=5176.26849857.J_9938243310.4.640115e9rV41KE"}},{"infoName":"产品入门","infoContent":{"firstContentName":"快速接入","lastContentName":"计费说明","firstContentLink":"https://help.aliyun.com/zh/arms/application-monitoring/getting-started/monitor-java-applications-1/?spm=a2c4g.11186623.0.0.36badf6bscAkU3","lastContentLink":"https://help.aliyun.com/zh/arms/application-monitoring/product-overview/billing-description?spm=a2c4g.11186623.0.0.41ba1a08NHoPA3"}},{"infoName":"相关推荐","infoContent":{"firstContentName":" 云拨测-网络测速","firstContentLink":"https://www.aliyun.com/activity/middleware/website/performance/test?spm=5176.20960838.0.0.6d33305emfVIyC","lastContentLink":"","lastContentName":""}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"应用实时监控服务ARMS","subtitle":"","linkUrl":"","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}

{"$env":{"JSON":{}},"$page":{"env":"production"},"$context":{"optioninfo":{"dynamic":"ture","static":"true"},"simplifiedDisplay":"newEdition","newCard":[{"ifIcon":"img","link":"https://img.alicdn.com/tfs/TB1XY8hGYr1gK0jSZFDXXb9yVXa-1740-328.png","icon":"","iconImg":"https://img.alicdn.com/tfs/TB1iJox2Br0gK0jSZFnXXbRRXXa-200-200.png","contentLink":"https://www.aliyun.com/product/arms","title":"应用实时监控服务 ARMS","des":"应用实时监控服务ARMS 包含前端监控，应用监控、云拨测等模块，覆盖小程序、APP、网站等客户端及ECS、Serverless、容器等环境，为分布式、微服务应用提供端到端性能监控与全链路追踪诊断， 让运维监控更加高效便捷。","link1":"https://common-buy.aliyun.com/?spm=5176.26849858.J_5253785160.3.3887564cBbVoUd&commodityCode=arms_serverless_public_cn","btn1":"立即开通（每月50GB额度）","link2":"https://common-buy.aliyun.com/?spm=5176.8140086.1280672.buy11.30f2bb91uujI1A&commodityCode=arms_app_bag#/buy","btn2":"资源包购买（旧版计费）","btn3":"帮助文档","link3":"https://help.aliyun.com/zh/arms/application-monitoring/getting-started/overview?spm=a2c4g.11186623.0.0.502edf6bVmoHkw","infoGroup":[{"infoName":"最佳实践","infoContent":{"firstContentLink":"https://www.aliyun.com/activity/middleware/ObservabilityConference2022?spm=5176.26849857.J_5253785160.2.1f4415e9ite0CU","firstContentName":"新老用户限时钜惠","lastContentLink":"https://www.aliyun.com/activity/middleware/observability","lastContentName":"最新实践 & 公开课"}},{"infoName":"相关推荐","infoContent":{"firstContentLink":"https://www.aliyun.com/activity/middleware/Application_monitoring?spm=5176.8140086.J_4084816840.3.1db8be45A6RecL","firstContentName":"应用监控-Java监控","lastContentName":"前端监控-Web应用监控","lastContentLink":"https://www.aliyun.com/activity/middleware/web_monitoring?spm=5176.26849857.J_9938243310.4.640115e9rV41KE"}},{"infoName":"产品入门","infoContent":{"firstContentName":"快速接入","lastContentName":"计费说明","firstContentLink":"https://help.aliyun.com/zh/arms/application-monitoring/getting-started/monitor-java-applications-1/?spm=a2c4g.11186623.0.0.36badf6bscAkU3","lastContentLink":"https://help.aliyun.com/zh/arms/application-monitoring/product-overview/billing-description?spm=a2c4g.11186623.0.0.41ba1a08NHoPA3"}},{"infoName":"相关推荐","infoContent":{"firstContentName":" 云拨测-网络测速","firstContentLink":"https://www.aliyun.com/activity/middleware/website/performance/test?spm=5176.20960838.0.0.6d33305emfVIyC","lastContentLink":"","lastContentName":""}}]}],"card":[],"search":[],"infoCard":[{"bannerUrl":"https://img.alicdn.com/tfs/TB1Xf81a3gP7K4jSZFqXXamhVXa-5169-974.jpg","bannerTitle":"mPaaS 小程序","bannerContent":"源自于支付宝小程序框架，亿级线上业务体量的锤炼，安全性媲美支付宝原生能力。<br>不仅面向自有 App 投放小程序，更可快速构建打包，覆盖支付宝、淘宝、钉钉等应用。","liveButtonName":"查看详情","liveButtonLink":"https://www.aliyun.com/product/mobilepaas/mpaas-miniprogram","contentTitle":"提供即开即用的端上体验","homePageLink":"https://common-buy.aliyun.com/?spm=5176.14673561.J_8751524360.2.56702709BussF3&commodityCode=mpaas_beta#/open","homePageName":"免费试用","linkGroup":[{"linkContent":"发布包大小极致优化，节省流量和存储。"},{"linkContent":"服务迭代不再受发版限制，快速发布，快速迭代。"},{"linkContent":"业务开发效率更加优秀，一次开发，多端运行。"}]}],"title":{"mainTitle":"应用实时监控服务ARMS","subtitle":"","linkUrl":"","btnText":"查看详情"},"visual":{"topbg":"https://img.alicdn.com/tfs/TB1bQuBIYH1gK0jSZFwXXc7aXXa-3840-740.gif","icon":"","textColor":"dark"},"dataList":[{"summary":"啦啦啦","author":"wuwu","linksUrl":"#"}],"sceneCard":[],"txt":[]}}