Чашечка Java

Один день из жизни JVM-инженера Можно разрабатывать на Java, а можно разрабатывать Java. Есть люди, чей код исполняет виртуальная машина — а есть люди, чей код и есть виртуальная машина. Вроде бы те и другие существуют в одной Java-экосистеме, но задачи совершенно разные. Поэтому редкое место, где они пересекаются и могут что-то поведать друг другу — Java-конференции. Мы проводим их регулярно (уже в апреле будет JPoint). И на прошлой нашей конференции Иван Углянский dbg_nsk поделился с Java-разработчиками тем, как всё выглядит с его стороны. Чем он вообще занимается? Почему JVM-инженеры всё так медленно делают? На каком языке стоит писать рантайм, а на каком компилятор? Как «папка бога» в Windows привела к неожиданным последствиям? Может ли «обычный джавист» стать JVM-инженером? Поскольку все эти вопросы из доклада звучат интересно, мы решили для Хабра сделать его текстовую версию (а для тех, кому удобнее видео, прикладываем ссылку на ютуб). Далее повествование идёт от лица Ивана. Читать: https://habr.com/ru/post/719614/?utm_campaign=719614

Top 5 Hibernate and Spring Data JPA Online Courses in 2023 - Best of Lot Hello Java programmers, if you want to learn Hibernate and Spring Data JPA, two of the leading persistence framework for enterprise Java development, and need the best resources like books, tutorials, and online courses then you have come to the right place. In the last article, I have shared the best Spring framework courses, and best Hibernate books, and today, I am going to share the best online courses to learn both Hibernate and Spring Data JPA in 2023. These are the top-quality courses from popular online learning platforms and sites like Udemy, Pluralsight, and Baeldung and are trusted by thousands of Java developers around the world to learn these essential frameworks for Java developers. Java Interview questions and tutorials Read: http://www.java67.com/2021/11/best-hibernate-and-spring-data-jpa-courses.html

Java News Roundup: JEP Updates, JReleaser 1.5, Spring Updates, Vert.x, Project Reactor, Ktor This week's Java roundup for February 27th, 2023 features news from OpenJDK, JDK 20, JDK 21, Spring Framework 6.0.6, Spring Boot 3.0.4, Spring Data 2022.0.3 and 2021.2.9, Spring Shell 3.1.0-M1, 3.0.1 and 2.1.7, Quarkus 2.16.4, Micronaut 3.8.6, Eclipse Vert.x 4.4.0, Project Reactor 2022.0.4, Apache Tomcat 9.0.73, Hibernate 6.2 CR3, JReleaser 1.5.0, Ktor 2.2.4 and Gradle 8.0.2. By Michael Redlich Read: https://www.infoq.com/news/2023/03/java-news-roundup-feb27-2023/

Top 5 Java Performance Courses for Experienced Developers to Learn in 2023 - Best of Lot Hello guys, if you have been doing Java development for few years, then you know that Performance is the key for any Java application. As a senior Java developer, one should know how to improve the performance of Java applicationsand understand memory management and garbage collection, which often causes Performance in Java applications. These are some advanced skills that take some effort to develop. It doesn't come by default even if you have been programming in Java for years, as most people don't touch these topics. Many of them are afraid or take the performance tuning work and always look up to the most senior or brilliant developers in their team. Java Interview questions and tutorials Read: http://www.java67.com/2020/04/top-5-advanced-courses-to-learn-java-perofrmance-concurrency-memory-management.html

Top 20 Selenium Interview Questions Answers for Programmers and Automation Test Engineers Hello guys, if you are preparing for Selenium Developer or Automation Testing Engineer interview and looking for frequently asked Selenium Interview Questions then you have come to the right place. Earlier, I have shared 130+ Core Java Interview Questionsand 20 JUnit Interview Questionsand in this article, I am going to share 20 common Selenium questions from interviews with answers. If you have worked with Selenium or used Selenium in your project then most likely you can answer all of these questions but if you struggle to answer any of these Selenium interview questions then you have always go back and check one of these best Selenium online courseto learn and revise key Selenium concepts. Java Interview questions and tutorials Read: http://www.java67.com/2022/06/selenium-interview-questions-answers.html

​VK проводит Weekend Offer для бэкенд-разработчиков на C++ и мобильных разработчиков Всё пройдёт в 3 этапа: первые встречи, выступление руководителей проекта и финальные технические интервью, на которых можно пообщаться с командой и спросить всё, что интересно. Взамен предлагают официальную зарплату, гибкий график, бонусы и скидки от партнёров, офис в центре города и ДМС. Когда: 11-12 марта, отклики принимают до 9 марта включительно. Не упустите шанс пообщаться и получить оффер в одну из команд крупнейшей социальной сети в РФ и СНГ. Узнать подробнее и оставить отклик: https://tprg.ru/Pa5L Реклама ООО "ВКонтакте"

How to read files from the resources folder in Spring Boot? Example Tutorial Hello everyone, welcome to the blog post. In this article, we are going to take a look at a frequently asked question in spring boot on how to read files from the resources folder. A resource is any file that contains information relevant to your project, including configuration files, picture files, data files, or other types of files. In this article, we will look at various methods and techniques that both spring boot and ordinary Java code allow us to read a file from the resources directory. Our goal is not simply to list these approaches; rather, we will describe each strategy with the help of an example so that, everyone can easily grasp the topic. Without further ado, let's get started. Java Interview questions and tutorials Read: http://www.java67.com/2023/03/how-to-read-files-from-resources-folder.html

Top Java Blogs Weekly: Best of 10/2023 Best of Top Java Blogs, year 2023, week 10 Read: https://www.topjavablogs.com/news/best-of-10-2023

Версионная миграция данных в мире DTO Доброе время суток, уважаемое Хабр коммьюнити. В этой публикации я хотел бы показать несколько известных мне подходов к версионной миграции данных в контексте DTO. Примеры будут продемонстрированы на языке Java. Читать: https://habr.com/ru/post/720478/?utm_campaign=720478

​Представляете, сколько получают IT-шники? Причём даже те, кто вообще не умеют программировать и за всю жизнь ни строчки кода не написали Средняя зп в IT — 140 тыс. (по данным hh.ru). Новички получают от 70 тыс. При этом имеют кучу льгот, удалёнку и свободный график. Сейчас IT-компании готовы брать даже совсем зелёных новичков, без дипломов и опыта работы. И таким новичком можете стать вы. Запишитесь на бесплатный марафон, чтобы узнать как попасть в крупную IT-компанию, пообщаться с профессионалами об их опыте и разобраться в том, какая именно профессия вам подходит: https://tprg.ru/9XWl Реклама ОАНО ДПО «Скаэнг»

Java web: от сокетов в сервлеты в spring web Всем привет! И снова данная статья является сугубо базовым познавательным обзором для новичков. Здесь не будет ничего сложного, поэтому тех, кто изголодался по сложным статьям, прошу сильно помидорами не закидывать) Итак, допустим мы хотим написать web-server с rest-like API на java, но пока не знаем никаких фреймворков, стандартов и библиотек. Читать: https://habr.com/ru/post/720414/?utm_campaign=720414

Top 20 Advanced Java Questions on Anonymous Class, Nested Static and Inner Class for Interviews Hello guys, static class and nested classes are one of the tricky topic to master in Java and that's why they are quite popular on Java Interviews. Not many Java developer knows about Anonymous class or how Lambda is compiled into Anonymous class by JVM etc. If you are going for Java Interview, I highly recommend you to prepare nested class topic well in Java. Just like in the past, I have shared many Java in-depth questions on different topics like Lambda Expression, Stream API, Generics, Collections, Multithreading, String, array, Design Patterns, OOP, Spring Framework, Hibernate etc, Java Interview questions and tutorials Read: http://www.java67.com/2022/12/nested-static-and-inner-class-java.html

Top 5 Free Courses to Learn Jenkins, Docker, DevOps, Maven, and Kubernetes in 2023 - Best of Lot Hello guys, you might have heard about DevOps and all the attention it is getting now. DevOps is a new phenomenon, and there is a mad race among senior developers to become aDevOps engineer. Well, I am not one of them as my passion is for becoming a software architect, but I have indeed spent some time learning DevOps just to increase my knowledge of the field as I strongly believe in the phrase, jack of all and master of one :-). In the DevOps world, tools matter a lot, and the whole of the DevOps phenomenon to create an automated pipeline for delivering quality software heavily relies on clever uses of tools like Maven, Jenkins, Docker, Kubernetes, and others. Java Interview questions and tutorials Read: http://www.java67.com/2019/03/5-free-devops-courses-to-learn-jenkins.html

Java 21 set to include sequenced collections, string templates Read: https://www.infoworld.com/article/3689880/java-21-set-to-include-sequenced-collections-string-templates.html#tk.rss_java

My Favorite Courses to learn React.js in Depth in 2023 - Best of Lot Hello guys, if you want to learn React.js in 2023 and looking for the best resources like books, online courses, tutorials, and guides, then you have come to the right place. In the past, I have shared the best free React.js courses, best React books, websites, projects, and even a complete React.js Developer RoadMap and in this article, I am going to share the best online courses to learn React.js in 2023.  You've come to the correct spot if you're a web developer or someone who is passionate about web development and want to learn React or React JS, a popular JavaScript framework for developing a component-based user interface. Java Interview questions and tutorials Read: http://www.java67.com/2022/03/top-5-reactjs-courses-for-beginners-to.html

Sealed классы Java в действии: создание надежных и безопасных приложений Sealed (закрытые или запечатанные) классы были представлены в Java 15 в качестве способа ограничить иерархию наследования класса или интерфейса. Sealed класс или интерфейс ограничивает набор классов, которые могут наследовать или реализовывать его, что может помочь предотвратить потенциальные ошибки и сделать код более удобным в сопровождении. Читать: https://habr.com/ru/post/720044/?utm_campaign=720044

Gradle 8.0 Provides Improved Kotlin DSL and Build Times The Gradle team announced Gradle 8.0 which reduces the build duration and improves the Kotlin DSL, for example, Kotlin API 1.8 and Java 11 features may now be used in the build scripts. By Johan Janssen Read: https://www.infoq.com/news/2023/03/gradle-8-0/

Top 20 Data Analyst Interview Questions Answers for 1 to 3 Years Experienced Hello guys, if you are preparing for Data Analyst interview and looking for frequently asked Data Analysis questions then you have come to the right place. Earlier, I have shared common Data Science questions, Machine Learning Questions, and AI questions from interviews and in this article, I am going to share common Data Analyst Interview Questions with answers for 1 to 3 years experienced people. If you have worked in the field of Data Analysis then most likely you will know the answers of all of them but if you cannot answer then I suggest you to join a good Data Analysis course like Google's Data Analyst Professional certificate on Coursera to learn and revise essential Data Analysis concepts. Java Interview questions and tutorials Read: http://www.java67.com/2022/06/data-analyst-interview-questions.html

Top 5 Courses to learn Docker in Depth - Best of Lot Hello Java programmer, if you want to learn Docker and looking for the best Docker Courses from Java and Spring Boot developer point of view, then you have come to the right place. Earlier, I shared free Spring Boot coursesand Docker courses,and in this article, I will share the best Docker courses for Java and Spring developers. Java is one of the most popular and widely used programming languages. It is an evergreen programming language. For Java developers, Docker is a game-changer. Docker is emerging rapidly, and it's now one of the most essential tools for all kinds of programmers, and there are reasons for it like Docker makes both development and deployment easier. Java Interview questions and tutorials Read: http://www.java67.com/2021/04/top-5-courses-to-learn-docker-for-java.html

Developing Software to Manage Distributed Energy Systems at Scale Functional programming techniques can make software more composable, reliable, and testable. For systems at scale, trade-offs in edge vs. cloud computing can impact speed and security. By Ben Linders Read: https://www.infoq.com/news/2023/03/software-energy-systems/