Чашечка Java

How Long It Take To Become a DBA (Database Administrator) in 2023? 7 days, 1 month or 1 year? Hello guys, if you want to become a Database Administrator in 2023 and wondering how long does it take to learn SQL and Database and become a professional Database Administrator or Junior DBA then you are at right place. In the past, I have shared free SQL and Database courses as well roadmap to become a Web Developer and in this article, I am going to share how long it will take you to become a DBA in 2023. Along the way, I will share best way to learn SQL and Database and what is the best way to become a DBA quickly. So continue reading and find out what it takes to become a DBA and get a job in real world. I will also share all the skills you need to become a DBA in 2023. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/how-long-it-take-to-become-dba-database.html

RabbitMQ + Spring boot + Docker. Отправляем и получаем сообщения через Producer и Consumer. Пошаговое руководство Меня зовут Андрей Вербицкий и я столкнулся с тем, что мое знакомство с RabbitMQ, а в частности его запуск на локальной машине и отправка сообщений в очередь с помощью приложения на Spring Boot, вылилась в несколько дней поисков информации о том, как это вообще работает, какие есть сущности и как в итоге переслать это сообщение. Я решил собрать все это в одном месте и сделать из этого практическое руководство, которое поможет из ничего получить рабочий прототип и понять как это работает. Эта статья ориентированная на новичков, которые только хотят познакомиться с RabbitMQ. Целью я поставил максимально простыми словами и по шагам рассказать, как быстро и легко поднять все окружение локально, отправить и получить сообщения через очередь. Читать: https://habr.com/ru/post/703352/?utm_campaign=703352

Top 10 Courses to Learn System Design and Software Architecture in 2023 - Best of Lot Software design or System design is one of the tricky concepts to master. You can quickly learn a programming language like Java or Python, but creating software using that programming language is a totally different thing. That's where software design and coding skills come to the rescue. It's actually an art to structure your program, design your modules, specify boundaries and interactions with other parts of the system so that they are easier to read, maintain, and flexible to change. It's one of the most essential skills for a software developer but often gets ignored. If you look for an online course to learn Software design and architecture, you won't find many, forget about good ones. Java Interview questions and tutorials Read: http://www.java67.com/2019/09/top-5-courses-to-learn-system-design.html

Top Java Blogs Weekly: Best of 50/2022 Best of Top Java Blogs, year 2022, week 50 Read: https://www.topjavablogs.com/news/best-of-50-2022

How to convert float, double, String, Map, List to Set, Integer, Date in Java - Example Tutorial Hello guys, converting one data type to another, for example String to Integer or String too boolean is a common task in Java and every Java programmer should be familiar with how to convert common data types like String, Integer, Long, Float, Double, Date, List, Map, Set, to each other. In the past, I have shared several tutorial where I have shown you how to carry out such conversion in Java and this article is nothing but a collection of such tutorial so that you can learn all of that knowledge in one place. You can also bookmark this page as I will be adding new data type conversion tutorials into this list as and when I write them, and you can also suggest if you struggle to convert a particular type to another and I will try to cover them here. Java Interview questions and tutorials Read: http://www.java67.com/2022/07/21-examples-to-convert-data-types-in.html

10 points on TCP/IP Protocol, Java Programmers should Know TCP/IP is one of the most important protocol as its backbone of HTTP, internet and most of the communication happens today. It's also important from technical interview perspective, you might have already seen difference between TCP and UDP multiple time during interviews ( I have seen). I believe every programmer, not just Java developer should know what is TCP/IP protocol? How it works and the below points I am going to mention. These are basic points and most of you already know but during Interview I have found many developers who doesn't really know what TCP/IP offers and how it works and what are the pros and cons of TCP/IP protocol. That's where, I think this article will help you. Anyway, let's jump into technical details now. Java Interview questions and tutorials Read: http://www.java67.com/2015/03/10-points-on-tcpip-protocol-java.html

How ThreadLocal variables works in Java? Hello guys, ThreadLocal variable is an interesting concept and class from Java API. Not many developer knows about it and very few know how to use it correctly. A couple of years ago it was also a popular Java interview questions for experienced developer but over the years, it lost the popularity as more and more people are now asking about Phaser, CompletableFuture, ForkJoinPool, and other newly added concurrency utilities. ThreadLocal variables, as name suggests is local to thread, which means every thread has there own copy. This means they don't need to look at the main memory when they want to use that variable and best thing is that the variable is not even shared between threads so no locking or synchronization is needed. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/how-threadlocal-variables-works-in-java.html

Kotlin 1.8.0 beta introduces experimental functions Read: https://www.infoworld.com/article/3682130/kotlin-180-beta-introduces-experimental-functions.html#tk.rss_java

What is Normalization in SQL? 1NF, 2nd NF, and 3rd NF Example Tutorial What is Normalization? Normalization is the process or technique to remove duplicate data from tables and thus reduce the storage size. It also helps to maintain integrity of data. Normalization likewise assists with coordinating the information in the data set. It is a multi-step process that sets the information into even structure and eliminates the copied information from the relational tables. Normalization coordinates the segments and tables of a data set to guarantee that data set integrity constraints appropriately execute their conditions. It is an orderly method of deteriorating tables to take out information overt repetitiveness (redundant) and unfortunate qualities like Insertion, Update, and Deletion anomalies. Java Interview questions and tutorials Read: http://www.java67.com/2022/08/what-is-normalization-in-sql-1nf-2nd-nf.html

OmniFish on Providing Support for Jakarta EE 10 and GlassFish 7 OmniFish, the Estonia-based Jakarta EE consulting company, launched support for Jakarta EE in September 2022. This includes JakartaEE 10, GlassFish 7, and Piranha Cloud and its components like Mojarra. OmniFish recently also joined the Jakarta EE Working Group as a participant member. InfoQ spoke to Arjan Tijms, David Matějček, and Ondro Mihályi about OmniFish. By Shaaf Syed Read: https://www.infoq.com/news/2022/12/omnifish-jakartaee-glassfish/

Spring Boot Backend + Vuejs Example [Java tutorial] - Part 1 In this tutorial, we will show you the Vue.js HTTP client and Spring Boot Server example that uses Spring JPA to do the CRUD with the H2 database and Vue.js as frontend technology to make requests and receive responses. But before moving to the Spring Boot and VueJs Example, Let's discuss what is Vuejs and its use cases. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/spring-boot-backend-vuejs-example-java.html

​Какие есть особенности у языка Groovy? Уже сегодня 28 ноября в 20:00 пройдет бесплатный открытый урок «Магия строк в Groovy» в OTUS. Вебинар приурочен к старту нового потока онлайн-курса «Groovy Developer». На вебинаре изучат особенности использования и реализации строк в Groovy: как применять и какие фокусы можно делать со строками. На занятии затронут темы: — String и GString, подстановки — Переопределение операторов и строки — Приведение типов — Аннотация @ToString Кому будет полезно? Java-разработчикам и разработчикам на других языках программирования, которые хотят познакомиться с особенностями языка Groovy. Пройдите вступительный тест, чтобы записаться на урок: https://otus.pw/fmSm/ Реклама ООО «Отус онлайн-образование» LjN8KD8VJ

​Хотите освоить Groovy-фреймворки для бэкенд-разработки? Начните с одного их основных фреймворков — Jenkins 8 декабря в 20:00 Андрей Поляков, старший разработчик в Unlimint, проведет вебинар «Настройка пайплайнов в Jenkins 123» Кому будет полезно? DevOps-инженерам и Java-разработчикам, которые хотят научиться создавать и настраивать сборки Java Backend проектов. Больше полезных навыков будет ждать вас на онлайн-курсе «Groovy Developer» от OTUS. Что интересного? На открытом уроке мы посмотрим, из каких шагов и блоков состоят пайплайны в Jenkins, а также научимся писать Groovy-скрипты для создания пайплайнов и изучим их составные части: - Настройка скриптов в Jenkins; - pipeline (agent, options, environment); - stages, stage; - steps, when, script, вызов функций. Пройдите вступительный тест для регистрации на урок: https://otus.pw/1RIu/ Реклама ООО «Отус Онлайн-Образование» LjN8KD8VJ

Top 21 Groovy Interview Questions with Answers for Java developers in 2023 Hello guys, if you are preparing for Groovy Developer interview or a Java Developer interview where Groovy is mentioned as required skill then you should prepare for it. If you are looking for common Groovy Interview questions and their answers then you have come to the right place. Earlier, I have shared best Groovy books and online courses to learn Groovy and in this article article, I am going to share frequently asked Groovy Interview Questions with answers.  These Groovy questions covers essential features of Groovy programming language and suitable for both beginners and programmers with 1 to 3 years of experience. Java Interview questions and tutorials Read: http://www.java67.com/2022/07/groovy-interview-questions-with-answers.html

AWS Lambda SnapStart Accelerates Java Functions At the recent re:Invent, AWS announced an update to its FaaS offering Lambda with SnapStart feature that reduces the cold start for Java Functions. By Steef-Jan Wiggers Read: https://www.infoq.com/news/2022/12/aws-lambda-snapstart-accelerate/

Article: Using Serverless WebSockets To Enable Real-time Messaging This article reviews some of the most common live-user experiences with examples, discusses event-driven architectures to support real-time updates, and introduces common technology choices. By Matthew O’Riordan Read: https://www.infoq.com/articles/serverless-websockets-realtime-messaging/

8 Examples of Primitive Data Types In Java (int, long, boolean, float, double, byte, char, and short) Hello guys, Data types are first few things you should learn when you start learning a programming language and when it comes to learn Java, there are 8 primitive data types which you should know. These are divided into three categories, numeric, text, and boolean values. Numeric data types can be further divided into two like natural numbers and floating pointing numbers. But, Before we get to a list of the 10 examples of primitive data types in Java, let me tell you a little bit more about what the primitive data types are.  There are essentially 8 primitive data types in Java. They are int, byte, short, long, float, double, boolean, and char. The primitive data types are not considered objects and represent raw values. These primitive data types are also stored directly on the stack. Java Interview questions and tutorials Read: http://www.java67.com/2022/11/examples-of-primitive-data-types-in-java.html

Неблокирующий повтор (retry) в Java и проект Loom Неблокирующий повтор (retry) в Java и проект Loom Введение Повтор (retry) операции является старейшим механизмом обеспечения надежности программного обеспечения. Мы используем повторы при выполнении HTTP запросов, запросов к базам данных, отсылке электронной почты и проч. и проч. Читать: https://habr.com/ru/post/702628/?utm_campaign=702628

​С чего начать изучать Java? Конечно же, с основ ООП 7 декабря как раз пройдёт вебинар «Классы и интерфейсы в Java», на котором вы познакомитесь с такими понятиями как: — Конструкторы, создание объектов и состояние объектов; — Поля классов, методы и интерфейсы. Это занятие будет полезно начинающим разработчикам, которые хотят познакомиться с ООП и его применением в Java. А продолжить вы сможете на живых вебинарах специализации «Java Developer». Используйте эту возможность для старта в освоении новой востребованной профессии! Регистрируйтесь: https://otus.pw/6WOlD/ Реклама ООО «Отус Онлайн-Образование» LjN8KPC2G