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Java was originally developed as an alternative to the C/C++ programming languages. It is now mainly used for building web, desktop, mobile, and embedded applications. Java is owned and licensed through Oracle, with free and open source implementations available from Oracle and other vendors.

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advanced-java

๐Ÿ˜ฎ Core Interview Questions & Answers For Experienced Java(Backend) Developers | ไบ’่”็ฝ‘ Java ๅทฅ็จ‹ๅธˆ่ฟ›้˜ถ็Ÿฅ่ฏ†ๅฎŒๅ…จๆ‰ซ็›ฒ๏ผšๆถต็›–้ซ˜ๅนถๅ‘ใ€ๅˆ†ๅธƒๅผใ€้ซ˜ๅฏ็”จใ€ๅพฎๆœๅŠกใ€ๆตท้‡ๆ•ฐๆฎๅค„็†็ญ‰้ข†ๅŸŸ็Ÿฅ่ฏ†

  • Updated Jun 9, 2022
  • Java
DaveCTurner
DaveCTurner commented May 10, 2022

Today we don't record the start or end of a snapshot restore in the server logs by default (or even at DEBUG level). In contrast we do record regular index creation, and also the start and end of every snapshot. Snapshot restores are relatively rare, and it would definitely be helpful to see them in the logs.

I think we wouldn't want to see restores related to mounting searchable snapshots, n

>enhancement good first issue :Distributed/Snapshot/Restore Team:Distributed

mall้กน็›ฎๆ˜ฏไธ€ๅฅ—็”ตๅ•†็ณป็ปŸ๏ผŒๅŒ…ๆ‹ฌๅ‰ๅฐๅ•†ๅŸŽ็ณป็ปŸๅŠๅŽๅฐ็ฎก็†็ณป็ปŸ๏ผŒๅŸบไบŽSpringBoot+MyBatisๅฎž็Žฐ๏ผŒ้‡‡็”จDockerๅฎนๅ™จๅŒ–้ƒจ็ฝฒใ€‚ ๅ‰ๅฐๅ•†ๅŸŽ็ณป็ปŸๅŒ…ๅซ้ฆ–้กต้—จๆˆทใ€ๅ•†ๅ“ๆŽจ่ใ€ๅ•†ๅ“ๆœ็ดขใ€ๅ•†ๅ“ๅฑ•็คบใ€่ดญ็‰ฉ่ฝฆใ€่ฎขๅ•ๆต็จ‹ใ€ไผšๅ‘˜ไธญๅฟƒใ€ๅฎขๆˆทๆœๅŠกใ€ๅธฎๅŠฉไธญๅฟƒ็ญ‰ๆจกๅ—ใ€‚ ๅŽๅฐ็ฎก็†็ณป็ปŸๅŒ…ๅซๅ•†ๅ“็ฎก็†ใ€่ฎขๅ•็ฎก็†ใ€ไผšๅ‘˜็ฎก็†ใ€ไฟƒ้”€็ฎก็†ใ€่ฟ่ฅ็ฎก็†ใ€ๅ†…ๅฎน็ฎก็†ใ€็ปŸ่ฎกๆŠฅ่กจใ€่ดขๅŠก็ฎก็†ใ€ๆƒ้™็ฎก็†ใ€่ฎพ็ฝฎ็ญ‰ๆจกๅ—ใ€‚

  • Updated Jun 9, 2022
  • Java

ใ€Œไผไธš็บงไฝŽไปฃ็ ๅนณๅฐใ€ๅ‰ๅŽ็ซฏๅˆ†็ฆปๆžถๆž„SpringBoot 2.x๏ผŒSpringCloud๏ผŒAnt Design&Vue๏ผŒMybatis๏ผŒShiro๏ผŒJWTใ€‚ๅผบๅคง็š„ไปฃ็ ็”Ÿๆˆๅ™จ่ฎฉๅ‰ๅŽ็ซฏไปฃ็ ไธ€้”ฎ็”Ÿๆˆ๏ผŒๆ— ้œ€ๅ†™ไปปไฝ•ไปฃ็ ! ๅผ•้ข†ๆ–ฐ็š„ๅผ€ๅ‘ๆจกๅผOnlineCoding->ไปฃ็ ็”Ÿๆˆ->ๆ‰‹ๅทฅMERGE๏ผŒๅธฎๅŠฉJava้กน็›ฎ่งฃๅ†ณ70%้‡ๅคๅทฅไฝœ๏ผŒ่ฎฉๅผ€ๅ‘ๆ›ดๅ…ณๆณจไธšๅŠก๏ผŒๆ—ข่ƒฝๅฟซ้€Ÿๆ้ซ˜ๆ•ˆ็އ๏ผŒๅธฎๅŠฉๅ…ฌๅธ่Š‚็œๆˆๆœฌ๏ผŒๅŒๆ—ถๅˆไธๅคฑ็ตๆดปๆ€งใ€‚

  • Updated Jun 10, 2022
  • Java
leakcanary
eygraber
eygraber commented Oct 28, 2020

I have a CoordinatorLayout that I am using as a fragment container, and I started getting leak reports after fragments are getting destroyed, because their View's are referenced by the container's mPreSortedChildren.

Looking at the ViewGroup source, it seems like that gets cleared when buildOrderedChildList is called, but I'm not fully sure what would trigger that (seems like a draw will,

about learning Spring Boot via examples. Spring Boot ๆ•™็จ‹ใ€ๆŠ€ๆœฏๆ ˆ็คบไพ‹ไปฃ็ ๏ผŒๅฟซ้€Ÿ็ฎ€ๅ•ไธŠๆ‰‹ๆ•™็จ‹ใ€‚

  • Updated Feb 9, 2022
  • Java

ใ€Šไปฃ็ ้šๆƒณๅฝ•ใ€‹LeetCode ๅˆท้ข˜ๆ”ป็•ฅ๏ผš200้“็ปๅ…ธ้ข˜็›ฎๅˆท้ข˜้กบๅบ๏ผŒๅ…ฑ60wๅญ—็š„่ฏฆ็ป†ๅ›พ่งฃ๏ผŒ่ง†้ข‘้šพ็‚นๅ‰–ๆž๏ผŒ50ไฝ™ๅผ ๆ€็ปดๅฏผๅ›พ๏ผŒๆ”ฏๆŒC++๏ผŒJava๏ผŒPython๏ผŒGo๏ผŒJavaScript็ญ‰ๅคš่ฏญ่จ€็‰ˆๆœฌ๏ผŒไปŽๆญค็ฎ—ๆณ•ๅญฆไน ไธๅ†่ฟท่Œซ๏ผ๐Ÿ”ฅ๐Ÿ”ฅ ๆฅ็œ‹็œ‹๏ผŒไฝ ไผšๅ‘็Žฐ็›ธ่งๆจๆ™š๏ผ๐Ÿš€

  • Updated Jun 10, 2022
dbeaver
KOLANICH
KOLANICH commented Jan 11, 2019

Sometimes it is needed to store compressed data in the DB. Unfortunately not all the DBs have built-in compression and FUSE compressed FSes are not available for every OS. So it may make sense to store compressed binary blobs in the DB.

Unfortunately when one sees them in DBeaver he sees them compressed, but often they are needed uncompressed. So it'd be nice to have a feature to decompress the

spring-boot-demo

่ฏฅ้กน็›ฎๅทฒๆˆๅŠŸ้›†ๆˆ actuator(็›‘ๆŽง)ใ€admin(ๅฏ่ง†ๅŒ–็›‘ๆŽง)ใ€logback(ๆ—ฅๅฟ—)ใ€aopLog(้€š่ฟ‡AOP่ฎฐๅฝ•web่ฏทๆฑ‚ๆ—ฅๅฟ—)ใ€็ปŸไธ€ๅผ‚ๅธธๅค„็†(json็บงๅˆซๅ’Œ้กต้ข็บงๅˆซ)ใ€freemarker(ๆจกๆฟๅผ•ๆ“Ž)ใ€thymeleaf(ๆจกๆฟๅผ•ๆ“Ž)ใ€Beetl(ๆจกๆฟๅผ•ๆ“Ž)ใ€Enjoy(ๆจกๆฟๅผ•ๆ“Ž)ใ€JdbcTemplate(้€š็”จJDBCๆ“ไฝœๆ•ฐๆฎๅบ“)ใ€JPA(ๅผบๅคง็š„ORMๆก†ๆžถ)ใ€mybatis(ๅผบๅคง็š„ORMๆก†ๆžถ)ใ€้€š็”จMapper(ๅฟซ้€Ÿๆ“ไฝœMybatis)ใ€PageHelper(้€š็”จ็š„Mybatisๅˆ†้กตๆ’ไปถ)ใ€mybatis-plus(ๅฟซ้€Ÿๆ“ไฝœMybatis)ใ€BeetlSQL(ๅผบๅคง็š„ORMๆก†ๆžถ)ใ€upload(ๆœฌๅœฐๆ–‡ไปถไธŠไผ ๅ’Œไธƒ็‰›ไบ‘ๆ–‡ไปถไธŠไผ )ใ€redis(็ผ“ๅญ˜)ใ€ehcache(็ผ“ๅญ˜)ใ€email(ๅ‘้€ๅ„็ง็ฑปๅž‹้‚ฎไปถ)ใ€task(ๅŸบ็ก€ๅฎšๆ—ถไปปๅŠก)ใ€quartz(ๅŠจๆ€็ฎก็†ๅฎšๆ—ถไปปๅŠก)ใ€xxl-job(ๅˆ†ๅธƒๅผๅฎšๆ—ถไปปๅŠก)ใ€swagger(APIๆŽฅๅฃ็ฎก็†ๆต‹่ฏ•)ใ€security(ๅŸบไบŽRBAC็š„ๅŠจๆ€ๆƒ้™่ฎค่ฏ)ใ€SpringSession(Sessionๅ…ฑไบซ)ใ€Zookeeper(็ป“ๅˆAOPๅฎž็Žฐๅˆ†ๅธƒๅผ้”)ใ€RabbitMQ(ๆถˆๆฏ้˜Ÿๅˆ—)ใ€Kafka(ๆถˆๆฏ้˜Ÿๅˆ—)ใ€websocket(ๆœๅŠก็ซฏๆŽจ้€็›‘ๆŽงๆœๅŠกๅ™จ่ฟ่กŒไฟกๆฏ)ใ€socket.io(่Šๅคฉๅฎค)ใ€ureport2(ไธญๅ›ฝๅผๆŠฅ่กจ)ใ€ๆ‰“ๅŒ…ๆˆwarๆ–‡ไปถใ€้›†ๆˆ ElasticSearch(ๅŸบๆœฌๆ“ไฝœๅ’Œ้ซ˜็บงๆŸฅ่ฏข)ใ€Async(ๅผ‚ๆญฅไปปๅŠก)ใ€้›†ๆˆDubbo(้‡‡็”จๅฎ˜ๆ–น็š„starter)ใ€MongoDB(ๆ–‡ๆกฃๆ•ฐๆฎๅบ“)ใ€neo4j(ๅ›พๆ•ฐๆฎๅบ“)ใ€docker(ๅฎนๅ™จๅŒ–)ใ€JPAๅคšๆ•ฐๆฎๆบใ€Mybatisๅคšๆ•ฐๆฎๆบใ€ไปฃ็ ็”Ÿๆˆๅ™จใ€GrayLog(ๆ—ฅๅฟ—ๆ”ถ้›†)ใ€JustAuth(็ฌฌไธ‰ๆ–น็™ปๅฝ•)ใ€LDAP(ๅขžๅˆ ๆ”นๆŸฅ)ใ€ๅŠจๆ€ๆทปๅŠ /ๅˆ‡ๆขๆ•ฐๆฎๆบใ€ๅ•ๆœบ้™ๆต(AOP + Guava RateLimiter)ใ€ๅˆ†ๅธƒๅผ้™ๆต(AOP + Redis + Lua)ใ€ElasticSearch 7.x(ไฝฟ็”จๅฎ˜ๆ–น Rest High Level Client)ใ€HTTPSใ€Flyway(ๆ•ฐๆฎๅบ“ๅˆๅง‹ๅŒ–)ใ€UReport2(ไธญๅ›ฝๅผๅคๆ‚ๆŠฅ่กจ)ใ€‚

  • Updated May 16, 2022
  • Java
WxJava

ๅพฎไฟกๅผ€ๅ‘ Java SDK ๏ผŒๆ”ฏๆŒๅŒ…ๆ‹ฌๅพฎไฟกๆ”ฏไป˜๏ผŒๅผ€ๆ”พๅนณๅฐ๏ผŒๅฐ็จ‹ๅบ๏ผŒไผไธšๅพฎไฟก๏ผŒๅ…ฌไผ—ๅท็ญ‰็š„ๅŽ็ซฏๅผ€ๅ‘

  • Updated Jun 10, 2022
  • Java

Created by James Gosling

Released May 23, 1995

Website
www.oracle.com/technetwork/java/javase/overview/index.html
Wikipedia
Wikipedia