Чашечка Java

​МегаФон ищет Backend разработчика (Java) Офис в любом филиале компании или удалённо по РФ Что нужно делать: — заниматься разработкой и поддержкой сервисов взаимодействия с клиентами на Java 8-17, Spring; — участвовать в планировании микросервисной архитектуры; — взаимодействовать с разработчиками back/front, аналитиками, тестировщиками; — участвовать в Code review. Оставляйте свой отклик тут Или пишите рекрутеру: @helend4216 #вакансия

Как я написал книгу по Java Статья о том, как я написал и полностью довёл до издания мою первую книгу по Java, про что эта книга, какие у неё особенности и где можно её купить. Приводится список глав с кратким описанием их содержания. Читать: https://habr.com/ru/post/709176/?utm_campaign=709176

Just, a New CLI for Spring Boot Applications Just, a command line tool requiring zero configuration, increases the Java development experience while building Spring Boot applications. Just automatically reloads the application when there is a change in source code, build files or Docker compose files. The project also supports the creation of (native) applications and (native) Docker images. By Johan Janssen Read: https://www.infoq.com/news/2023/01/just-spring-boot-cli/

Java News Roundup: Ideal Graph Visualizer Open-Sourced, TomEE MicroProfile 5.0 Certification This week's Java roundup for January 2nd, 2023, features news from JDK 20, JDK 21, Ideal Graph Visualizer open-sourced, Spring Tools 4.17.1, Open Liberty 23.0.0.1, Quarkus 2.15.2, Quarkus OpenAPI Generator 2.0, Apache Tomcat CVE, Apache TomEE certification, Apache James 3.7.3, Apache Camel 3.20.1, MyFaces Core 4.0-RC3, Ktor 2.2.2, JHipster Lite 0.25, JobRunr 5.3.3, SourceBuddy 2.1, CircleCI CVE. By Michael Redlich Read: https://www.infoq.com/news/2023/01/java-news-roundup-jan02-2023/

How to Calculate Area and Perimeter of Square in Java? Example Tutorial Hello guys, if you are learning and looking for programming exercises then you have come to the right place. I have share many programming exercises and homework in this blog and today, I am going to share another simple programming assignment for beginners. Yes, we ae going to write a program which will calculate the area and perimeter of a square in Java. If you don't remember,area of a square is nothing but the multiplication of side with itself or square of side, while perimeter of a square is 4 times of its side because in case of square, each side is equal. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/how-to-calculate-square-area-perimeter.html

Теория категорий в API для консистентности Apache Cassandra Для Apache Cassandra проектирование структуры таблиц выполняется для нужд одного конкретного приложения, а перед программистом встают проблемы дублирования данных (один запрос читает одну таблицу, в которой есть все нужные поля) и контроля инициализации значений для колонок, входящих в первичный ключ В статье предлагается вариант организации клиентского API для решения проблем с консистентностью данных и инициализации требуемых полей на базе комбинации паттернов проектирования Factory Method, Builder и Finite State Machine TLDR: Если представить паттерн Factory Method как предел в терминах теории категорий, т.е. кортеж с проекциями, и инициализировать фабрику при помощи паттерна Builder, то можно получить удобный API для создания объектов с дублирующимся данными Читать: https://habr.com/ru/post/709508/?utm_campaign=709508

Top Java Blogs Weekly: Best of 2/2023 Best of Top Java Blogs, year 2023, week 2 Read: https://www.topjavablogs.com/news/best-of-2-2023

How to write File with try-with-resource in Java? Example Tutorial Hello Java programmers and all people learning Java, if you are familiar withtry-wit-resource statement then you know that its a great language functionality and tool to open files, sockets, streams, and network connections or any resource which are require closing. Before try-with-resource was introduce in Java 7, Java developers have to manually write try catch finally block to close the connections for both success and failure cases to prevent resource leak but it was also tricky and many programmer make mistakes which actually resulted in resource leaks. One common example of that is running out of file descriptors which is used for both opening file and socket in Java. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/how-to-write-file-in-java-with-try.html

Top 30 Advanced Java Interview Questions for Experienced Developers Hello guys, I have shared a lot of questions from Java Interviews in this article, so much so that many of my reader search Javarevisited for any Java interview question they come across. While In the past, I have shared Java concurrency questions, Java collections questions, Java questions on design patterns, and many tricky Java questions but a lot of people asked me to share more practical questions for experienced Java developers. Means, more advanced Java questions for 5 to 7 and even 10 years of experienced Java developers. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/advanced-java-interview-questions-for.html

C++ wins programming language of the year award Read: https://www.infoworld.com/article/3684848/c-plus-plus-wins-programming-language-of-the-year-award.html#tk.rss_java

How to Enable Disable Spring Security in Spring Boot? Example Tutorial Hello guys, if you are wondering how to enable and disable Spring Security in a Spring Boot based Java application then you have come to the right place. In the past, I have shared best Spring security courses, 25 Spring Security questions, as well multiple Spring security tutorials like how to use HTTP Basic auth in Spring Security etc.  and in this article, I will share multiple ways to enable and disable Spring Security in a Spring boot application. But, before that, if you are new to Spring Security then find out what is Spring Security and how does it work?  At its core, Spring Security is simply a bunch of servlet filters that assist you with adding authentication and authorization to your web application. Java Interview questions and tutorials Read: http://www.java67.com/2022/09/how-to-enable-disable-spring-security.html

How to Find Lowest Common Ancestor of a Binary Tree in Java? Example Tutorial Hello guys, if you are wondering how to find the lowest common ancestor of a binary tree in Java then you are at the right place. Earlier, I have shared 40+ binary tree questions and today I am going to share solution of one of the popular binary tree question here. To find the lowest common ancestor of a binary tree in java requires that we run through a binary search tree and how it operates. What then is a binary search tree? A Binary tree is a data structure in which each node can have at most two children. That is, each node in the binary tree will have data, left child and right child. The first node of the tree is called the Root. Java Interview questions and tutorials Read: http://www.java67.com/2022/01/how-to-find-lowest-common-ancestor-of.html

GlassFish 7.0 Delivers Support for JDK 17 and Jakarta EE 10 The Eclipse Foundation has released the latest version of its open-source application server, GlassFish 7.0, which is now available. The new release includes support for the MicroProfile Config, MicroProfile JWT Propagation, and Jakarta MVC 2.0 specifications. Changes to the API and JSON parts of the Jakarta Standard Tag Library and new Jakarta Authentication methods are also essential features. By A N M Bazlur Rahman Read: https://www.infoq.com/news/2023/01/glassfish-delivers-support-jdk17/

React Native vs Flutter? Which is better to learn for App Development in 2023? Hello guys, if you are wondering whether to learn Flutter or React Native for App Development in 2023 then you have come to the right place. Earlier, I have shred best courses to learn Flutter and React Native and in this article, I will share my thoughts on which one is better suited for App development in 2023 and which mobile app development framework beginner should learn in 2023. In the recent decade, the mobile application community has grown tremendously. The total number of applications on the play store surpassed one million in the year 2013 and by mid-2020, it was estimated that there are more than 2.8 million applications on the google play store. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/react-native-vs-flutter-which-is-better.html

Angular vs React vs Vue.js ? Which is better to learn web development in 2023? JavaScript web frameworks are important parts of modern web development. Several JavaScript web framework and libraries are active today. If you plan to become a web developer, you may encounter these web frameworks. A web developer, especially a front-end web developer should be skilled in at least one of these frameworks. Angular and React are the two most popular web frameworks and libraries today. Vue.js is the rising star. In this article, we will compare these three frameworks on different parameters like Community support, Performance, ease of Learning, and jobs to find out which frontend development framework between Angular, React.js and Vue.js you should learn in 2023. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/angular-vs-react-vs-vuejs-which-is.html

Top 11 JavaScript Frameworks and Libraries to Learn in 2023 - Best of Lot There is no doubt that JavaScript is now the #1 programming language in the world and also the king of web development. If you want to become a web developer who can quickly create websites like you see on the internet, then a good knowledge of JavaScript and various, popular JavaScript web development frameworks is essential for you. These frameworks have completely changed the way people developed web applications a decade ago. After node.js, it's even possible to create a complete web application from front to back using just one programming language, JavaScript. That's why it has become the preferred programming language of all Full-stack Web Developers. Java Interview questions and tutorials Read: http://www.java67.com/2019/01/top-10-javascript-frameworks-and-libraries-for-web-developers.html

Top 10 Google Cloud Certifications You can Aim in 2023 - Best of Lot Hello guys, If you are aiming for Cloud Certifications in 2023 then Google Cloud Platform is one of the most in-demand platforms to go for. It's backed by Google and there is a huge demand for people who know Google Cloud Platform or have some experience in using Google Cloud Platform for DevOps, Machine Learning, and Big Data. Getting certified is a good way to learn both essential skills and get recognition and that's why I am sharing the 10 best Google Cloud computing certifications you can aim for in 2023. Java Interview questions and tutorials Read: http://www.java67.com/2021/01/top-10-google-cloud-certifications.html

How Long Does It Take To Learn Data Science in 2023? Hello guys, if you want to become a Data Scientist in 2023 but wondering how long it take to learn all the Data Science skills requiredto become to a Data Scientist then you are at the right place. Earlier, I have shared best Data Science courses and Data Science Interview Questions for Job Interviews and in this article, I will talk about the time it take to become a Data Scientist in 2023.  Data science is a simple term, is preparing the data for analysis starting by cleaning, aggregating, and manipulating data for this action using scientific methods, statistics, machine learning algorithms to extract insights from this data and power business decisions. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/how-long-it-take-to-learn-data-science.html

Java News Roundup: Jakarta Data Initial Release, Micronaut 3.8, JReleaser 1.4, Gradle 8.0-RC1 It was very quiet for the week of December 26th, 2022, but InfoQ found a few news items of interest that include: Jakarta NoSQL 1.0.0-b5, Jakarta Data 1.0.0-b1, Micronaut 3.8.0, Apache Groovy 4.0.7, Gradle 8.0.0-RC1, JReleaser 1.4.0. By Michael Redlich Read: https://www.infoq.com/news/2023/01/java-news-roundup-dec26-2022/

10 Projects You can Build to Learn TypeScript in 2023 - Best of Lot Hello guys, if you want to learn TypeScript then there is no better way to learn then building projects. In my 20 years of experience in Software development, this is the most valuable lesson I have learned. Its Ok to read books and watch online courses but until you build something those knowledge will go in vain. You will forget most of them within few weeks. That's why its important to build project and keep building them. If you are looking for interesting TypeScript project ideas then you have come to the right place. Earlier, I have shared best TypeScript courses and best JavaScript courses and in this article, I am going to share 10 projects you can build to learn TypeScript in 2023. I have carefully chose these projects so that both beginner and intermediate TypeScript developer can benefit. Java Interview questions and tutorials Read: http://www.java67.com/2023/01/typescript-project-ideas-for-beginners.html