René's URL Explorer Experiment


Title: JavaGuide/docs/java/basis/java-basic-questions-02.md at main · ilee-y/JavaGuide · GitHub

Open Graph Title: JavaGuide/docs/java/basis/java-basic-questions-02.md at main · ilee-y/JavaGuide

X Title: JavaGuide/docs/java/basis/java-basic-questions-02.md at main · ilee-y/JavaGuide

Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试,首选 JavaGuide! - JavaGuide/docs/java/basis/java-basic-questions-02.md at main · ilee-y/JavaGuide

Open Graph Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试,首选 JavaGuide! - ilee-y/JavaGuide

X Description: 「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试,首选 JavaGuide! - ilee-y/JavaGuide

Opengraph URL: https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md

X: @github

direct link

Domain: github.com

route-pattern/:user_id/:repository/blob/*name(/*path)
route-controllerblob
route-actionshow
fetch-noncev2:18dde8cb-fa59-a12e-852d-344269de8606
current-catalog-service-hashf3abb0cc802f3d7b95fc8762b94bdcb13bf39634c40c357301c4aa1d67a256fb
request-idA186:37AB26:17D9D8:21C157:6A536884
html-safe-nonced3f42824b65fa6673c76088671f462ec133411cb5966b4a8f6ce275e37ef75c1
visitor-payloadeyJyZWZlcnJlciI6IiIsInJlcXVlc3RfaWQiOiJBMTg2OjM3QUIyNjoxN0Q5RDg6MjFDMTU3OjZBNTM2ODg0IiwidmlzaXRvcl9pZCI6IjIxODEyNTU4NDUyMTU2OTI5MzIiLCJyZWdpb25fZWRnZSI6ImlhZCIsInJlZ2lvbl9yZW5kZXIiOiJpYWQifQ==
visitor-hmac78f8562c16426dbfdcbed8f015a4d8d9aa8a6183c21273ac9e25a3a9d4d2b0d0
hovercard-subject-tagrepository:768869852
github-keyboard-shortcutsrepository,source-code,file-tree,copilot
google-site-verificationApib7-x98H0j5cPqHWwSMm6dNU4GmODRoqxLiDzdx9I
octolytics-urlhttps://collector.github.com/github/collect
analytics-location///blob/show
fb:app_id1401488693436528
apple-itunes-appapp-id=1477376905, app-argument=https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md
twitter:imagehttps://opengraph.githubassets.com/b102d87a864a3da5b830e7023266f33e0952f097d6daa6f686d5a8f411c4cf45/ilee-y/JavaGuide
twitter:cardsummary_large_image
og:imagehttps://opengraph.githubassets.com/b102d87a864a3da5b830e7023266f33e0952f097d6daa6f686d5a8f411c4cf45/ilee-y/JavaGuide
og:image:alt「Java学习+面试指南」一份涵盖大部分 Java 程序员所需要掌握的核心知识。准备 Java 面试,首选 JavaGuide! - ilee-y/JavaGuide
og:image:width1200
og:image:height600
og:site_nameGitHub
og:typeobject
hostnamegithub.com
expected-hostnamegithub.com
Noneb9a586c06a05a7a86fc7e3f4dbd03e42f6869085879aa184aa6369456dbd50fb
turbo-cache-controlno-cache
go-importgithub.com/ilee-y/JavaGuide git https://github.com/ilee-y/JavaGuide.git
octolytics-dimension-user_id94844256
octolytics-dimension-user_loginilee-y
octolytics-dimension-repository_id768869852
octolytics-dimension-repository_nwoilee-y/JavaGuide
octolytics-dimension-repository_publictrue
octolytics-dimension-repository_is_forktrue
octolytics-dimension-repository_parent_id132464395
octolytics-dimension-repository_parent_nwoSnailclimb/JavaGuide
octolytics-dimension-repository_network_root_id132464395
octolytics-dimension-repository_network_root_nwoSnailclimb/JavaGuide
turbo-body-classeslogged-out env-production page-responsive
disable-turbofalse
browser-stats-urlhttps://api.github.com/_private/browser/stats
browser-errors-urlhttps://api.github.com/_private/browser/errors
release07a982c1d40157c619b364352b704c3ce66bb332
ui-targetfull
theme-color#1e2327
color-schemelight dark

Links:

Skip to contenthttps://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#start-of-content
https://github.com/
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Filee-y%2FJavaGuide%2Fblob%2Fmain%2Fdocs%2Fjava%2Fbasis%2Fjava-basic-questions-02.md
GitHub CopilotWrite better code with AIhttps://github.com/features/copilot
GitHub Copilot appDirect agents from issue to mergehttps://github.com/features/ai/github-app
MCP RegistryNewIntegrate external toolshttps://github.com/mcp
ActionsAutomate any workflowhttps://github.com/features/actions
CodespacesInstant dev environmentshttps://github.com/features/codespaces
IssuesPlan and track workhttps://github.com/features/issues
Code ReviewManage code changeshttps://github.com/features/code-review
GitHub Advanced SecurityFind and fix vulnerabilitieshttps://github.com/security/advanced-security
Code securitySecure your code as you buildhttps://github.com/security/advanced-security/code-security
Secret protectionStop leaks before they starthttps://github.com/security/advanced-security/secret-protection
Why GitHubhttps://github.com/why-github
Documentationhttps://docs.github.com
Bloghttps://github.blog
Changeloghttps://github.blog/changelog
Marketplacehttps://github.com/marketplace
View all featureshttps://github.com/features
Enterpriseshttps://github.com/enterprise
Small and medium teamshttps://github.com/team
Startupshttps://github.com/enterprise/startups
Nonprofitshttps://github.com/solutions/industry/nonprofits
App Modernizationhttps://github.com/solutions/use-case/app-modernization
DevSecOpshttps://github.com/solutions/use-case/devsecops
DevOpshttps://github.com/solutions/use-case/devops
CI/CDhttps://github.com/solutions/use-case/ci-cd
View all use caseshttps://github.com/solutions/use-case
Healthcarehttps://github.com/solutions/industry/healthcare
Financial serviceshttps://github.com/solutions/industry/financial-services
Manufacturinghttps://github.com/solutions/industry/manufacturing
Governmenthttps://github.com/solutions/industry/government
View all industrieshttps://github.com/solutions/industry
View all solutionshttps://github.com/solutions
AIhttps://github.com/resources/articles?topic=ai
Software Developmenthttps://github.com/resources/articles?topic=software-development
DevOpshttps://github.com/resources/articles?topic=devops
Securityhttps://github.com/resources/articles?topic=security
View all topicshttps://github.com/resources/articles
Customer storieshttps://github.com/customer-stories
Events & webinarshttps://github.com/resources/events
Ebooks & reportshttps://github.com/resources/whitepapers
Business insightshttps://github.com/solutions/executive-insights
GitHub Skillshttps://skills.github.com
Documentationhttps://docs.github.com
Customer supporthttps://support.github.com
Community forumhttps://github.com/orgs/community/discussions
Trust centerhttps://github.com/trust-center
Partnershttps://github.com/partners
View all resourceshttps://github.com/resources
GitHub SponsorsFund open source developershttps://github.com/open-source/sponsors
Security Labhttps://securitylab.github.com
Maintainer Communityhttps://maintainers.github.com
Acceleratorhttps://github.com/open-source/accelerator
GitHub Starshttps://stars.github.com
Archive Programhttps://archiveprogram.github.com
Topicshttps://github.com/topics
Trendinghttps://github.com/trending
Collectionshttps://github.com/collections
Enterprise platformAI-powered developer platformhttps://github.com/enterprise
GitHub Advanced SecurityEnterprise-grade security featureshttps://github.com/security/advanced-security
Copilot for BusinessEnterprise-grade AI featureshttps://github.com/features/copilot/copilot-business
Premium SupportEnterprise-grade 24/7 supporthttps://github.com/enterprise/premium-support
Pricinghttps://github.com/pricing
Search syntax tipshttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
documentationhttps://docs.github.com/search-github/github-code-search/understanding-github-code-search-syntax
Sign in https://github.com/login?return_to=https%3A%2F%2Fgithub.com%2Filee-y%2FJavaGuide%2Fblob%2Fmain%2Fdocs%2Fjava%2Fbasis%2Fjava-basic-questions-02.md
Sign up https://github.com/signup?ref_cta=Sign+up&ref_loc=header+logged+out&ref_page=%2F%3Cuser-name%3E%2F%3Crepo-name%3E%2Fblob%2Fshow&source=header-repo&source_repo=ilee-y%2FJavaGuide
Reloadhttps://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md
Reloadhttps://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md
Reloadhttps://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md
ilee-y https://github.com/ilee-y
JavaGuidehttps://github.com/ilee-y/JavaGuide
Snailclimb/JavaGuidehttps://github.com/Snailclimb/JavaGuide
Notifications https://github.com/login?return_to=%2Filee-y%2FJavaGuide
Fork 0 https://github.com/login?return_to=%2Filee-y%2FJavaGuide
Star 0 https://github.com/login?return_to=%2Filee-y%2FJavaGuide
Code https://github.com/ilee-y/JavaGuide
Pull requests 0 https://github.com/ilee-y/JavaGuide/pulls
Actions https://github.com/ilee-y/JavaGuide/actions
Projects https://github.com/ilee-y/JavaGuide/projects
Security and quality 0 https://github.com/ilee-y/JavaGuide/security
Insights https://github.com/ilee-y/JavaGuide/pulse
Code https://github.com/ilee-y/JavaGuide
Pull requests https://github.com/ilee-y/JavaGuide/pulls
Actions https://github.com/ilee-y/JavaGuide/actions
Projects https://github.com/ilee-y/JavaGuide/projects
Security and quality https://github.com/ilee-y/JavaGuide/security
Insights https://github.com/ilee-y/JavaGuide/pulse
https://github.com/ilee-y/JavaGuide
JavaGuidehttps://github.com/ilee-y/JavaGuide/tree/main
docshttps://github.com/ilee-y/JavaGuide/tree/main/docs
javahttps://github.com/ilee-y/JavaGuide/tree/main/docs/java
basishttps://github.com/ilee-y/JavaGuide/tree/main/docs/java/basis
Historyhttps://github.com/ilee-y/JavaGuide/commits/main/docs/java/basis/java-basic-questions-02.md
https://github.com/ilee-y/JavaGuide/commits/main/docs/java/basis/java-basic-questions-02.md
JavaGuidehttps://github.com/ilee-y/JavaGuide/tree/main
docshttps://github.com/ilee-y/JavaGuide/tree/main/docs
javahttps://github.com/ilee-y/JavaGuide/tree/main/docs/java
basishttps://github.com/ilee-y/JavaGuide/tree/main/docs/java/basis
Rawhttps://github.com/ilee-y/JavaGuide/raw/refs/heads/main/docs/java/basis/java-basic-questions-02.md
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#面向对象基础
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#面向对象和面向过程的区别
面向过程:面向过程性能比面向对象高??https://github.com/Snailclimb/JavaGuide/issues/431
https://camo.githubusercontent.com/0f478de8223a3fa06860cec71452da173f9ef6ac5feb5dd18bb137f12cba03e5/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f62617369732f706f702d76732d6f6f702d706572666f726d616e63652e706e67
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#创建一个对象用什么运算符对象实体与对象引用有何不同
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#对象的相等和引用相等的区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#如果一个类没有声明构造方法该程序能正确执行吗
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#构造方法有哪些特点是否可被-override
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#面向对象三大特征
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#封装
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#继承
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#多态
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#接口和抽象类有什么共同点和区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#接口和抽象类的共同点
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#接口和抽象类的区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#深拷贝和浅拷贝区别了解吗什么是引用拷贝
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#浅拷贝
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#深拷贝
https://camo.githubusercontent.com/f43fdb020d66750f273cc61ced7144999a067218fdfe2853125a87b89fd12783/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f62617369732f7368616c6c6f7726646565702d636f70792e706e67
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#object
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#object-类的常见方法有哪些
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#-和-equals-的区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#hashcode-有什么用
https://camo.githubusercontent.com/0cce4c1a66c9af6c4f0c3def39759401c77c339f1f8bb8726a80ecc58847fd3d/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f62617369732f6a6176612d68617368636f64652d6d6574686f642e706e67
https://hg.openjdk.org/jdk8u/jdk8u/hotspot/file/87ee5ee27509/src/share/vm/runtime/globals.hpphttps://hg.openjdk.org/jdk8u/jdk8u/hotspot/file/87ee5ee27509/src/share/vm/runtime/globals.hpp
https://hg.openjdk.org/jdk8u/jdk8u/hotspot/file/87ee5ee27509/src/share/vm/runtime/synchronizer.cpphttps://hg.openjdk.org/jdk8u/jdk8u/hotspot/file/87ee5ee27509/src/share/vm/runtime/synchronizer.cpp
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#为什么要有-hashcode
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#为什么重写-equals-时必须重写-hashcode-方法
Java hashCode() 和 equals()的若干问题解答https://www.cnblogs.com/skywang12345/p/3324958.html
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#string
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#stringstringbufferstringbuilder-的区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#string-为什么是不可变的
如何理解 String 类型值的不可变? - 知乎提问https://www.zhihu.com/question/20618891/answer/114125846
issue 675https://github.com/Snailclimb/JavaGuide/issues/675
https://camo.githubusercontent.com/b71951fe5f998e20ebba35e47f866d6360c272dbb54e815382d80d994cb22d30/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a646b392d737472696e672d6c6174696e312e706e67
https://openjdk.java.net/jeps/254https://openjdk.java.net/jeps/254
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#字符串拼接用-还是-stringbuilder
https://camo.githubusercontent.com/97ec34bf84319541b85526157611d547b1c088ff223f89ea17918bde39f2d8e3/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f696d6167652d32303232303432323136313633373932392e706e67
https://camo.githubusercontent.com/9ce61a7f400a0020dbb96373f9ae36a759f74bdff3448efbec07b9de7e9d2987/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f696d6167652d32303232303432323136313332303832332e706e67
https://camo.githubusercontent.com/1e36db481740668e7fe9bfbf038672437ef6d31f532b3249cd2ac7f225f85a91/68747470733a2f2f6f73732e6a61766167756964652e636e2f6769746875622f6a61766167756964652f6a6176612f696d6167652d32303232303432323136323332373431352e706e67
JEP 280https://openjdk.org/jeps/280
StringBuilder?来重温一下字符串拼接吧https://juejin.cn/post/7182872058743750715
issue#2442https://github.com/Snailclimb/JavaGuide/issues/2442
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#stringequals-和-objectequals-有何区别
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#字符串常量池的作用了解吗
Java 内存区域详解https://javaguide.cn/java/jvm/memory-area.html
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#string-s1--new-stringabc这句话创建了几个字符串对象
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#stringintern-方法有什么作用
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#string-类型的变量和常量做运算时发生了什么
https://camo.githubusercontent.com/86142f2478141a105097ca5d090421327700022f2281e61a54a0e16d7185b793/68747470733a2f2f6f73732e6a61766167756964652e636e2f6a6176612d67756964652d626c6f672f696d6167652d32303231303831373132333235323434312e706e67
https://camo.githubusercontent.com/c1ae0f32889aae0fac056bd9669b4ec3925d11f7582d17d37871e07fad966ae2/68747470733a2f2f6f73732e6a61766167756964652e636e2f6a61766167756964652f696d6167652d32303231303831373134323731353339362e706e67
https://github.com/ilee-y/JavaGuide/blob/main/docs/java/basis/java-basic-questions-02.md#参考
https://tech.meituan.com/2014/03/06/in-depth-understanding-string-intern.htmlhttps://tech.meituan.com/2014/03/06/in-depth-understanding-string-intern.html
http://keaper.cn/2020/09/08/java-string-mian-mian-guan/http://keaper.cn/2020/09/08/java-string-mian-mian-guan/
https://www.zhihu.com/question/55976094/answer/147302764https://www.zhihu.com/question/55976094/answer/147302764
https://github.com
Termshttps://docs.github.com/site-policy/github-terms/github-terms-of-service
Privacyhttps://docs.github.com/site-policy/privacy-policies/github-privacy-statement
Securityhttps://github.com/security
Statushttps://www.githubstatus.com/
Communityhttps://github.community/
Docshttps://docs.github.com/
Contacthttps://support.github.com?tags=dotcom-footer

Viewport: width=device-width


URLs of crawlers that visited me.