Чашечка Java

Top 5 Features Of Spring 6 To Learn In 2023 Hello guys, if you are wondering what is New in Spring Framework 6 release and what new feature it has got or what does it support now then you have come to the right place. In this article, I will share 5 key changes from Spring Framework 6 which are worth knowing for Every Java developer. Before we get to the top 5 features of Spring that you need to definitely learn in 2023, let me tell you a bit more about what Spring Framework really is. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/top-5-features-of-spring-6-to-learn-in.html

Difference between 32-bit vs 64-bit JVM in Java? Hello Java Programmers, if you want to learn Java virtual Machine in-depth and wondering what is the difference between a 32-bit and 64-bit JVM and which one should you use and why? then you have come to the right place. Earlier, I have shared the best JVM booksand online JVM coursesand in this article, I am going to talk about 32-bit vs 64-bit JVM and their pros and cons. This is also a common Java interview question for beginners and intermediate Java programmers. I have tried to answer this question to the point that's why this article is a short but informative one. You will find out what they are, how they are different, how much heap size, and the pros and cons of each of them. Java Interview questions and tutorials Read: http://www.java67.com/2019/12/difference-between-32-bit-vs-64-bit-jvm.html

How to remove duplicate(s) from linked list in Java? Example Tutorial Hello guys, if you are wondering how to find duplicates in a given linked list in Javathen you have come to the right place. In the past, I have explained how to reverse a linked list in Java, find kth element from tail in linked list, find cycle on linked list, and in this article, I will show you how to find duplicate nodes in a given linked list. This is one of the classic linked list coding problemand I have also included this in my list of 30 common linked list problemsfor programmers. You can further check that list to practice more linked list programs and improve your understanding of linked lists and how to solve those problems. But, before we get into details of finding and printing duplicate nodes from the given linked list let's start with the basics. Java Interview questions and tutorials Read: http://www.java67.com/2022/02/how-to-remove-duplicates-from-linked-list-.html

10 Examples Of Mockito + JUnit in Java for Unit Testing Hello guys, if you are writing unit test in Java then you know how difficult it is to write especially if you are testing a class which is dependent upon other class like HttpClient and you cannot connect to actual server. At those time, a mocking library like Mockito comes to rescue. Given the increased focus on unit testing and code coverage, I have find myself using Mockito more and more along with JUnit in last a couple of years but I haven't written many articles on Mockito yet but that is chaging now. In this article, I am going to share 10 essential Mockito examples which I belive every Java programmer should know. But, before we get to the 10 best examples that will teach you everything there is to know about Mockito in Java, let me tell you a little bit more about what it really is. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/10-examples-of-mockito-junit-in-java.html

Может ли Java-приложение использовать больше памяти, чем размер кучи Возможно, вы замечали, что Java-приложение может превышать лимит памяти, указанный в параметре -Xmx (максимальный размер кучи). Дело в том, что JVM помимо кучи использует и другие области памяти. Давайте начнем со структуры памяти Java-приложения и источников потребления памяти. Читать: https://habr.com/ru/post/705982/?utm_campaign=705982

Четвёртый раунд битвы языков программирования 2022 В четвёртом раунде за звание лучшего языка программирования в 2022 году соревнуются JavaScript и TypeScript, Rust и Java. Читать: «Четвёртый раунд битвы языков программирования 2022»

Article: Java InfoQ Trends Report - December 2022 This report provides a summary of how the InfoQ Java editorial team and several Java Champions currently see the adoption of technology and emerging trends within the Java and JVM space in 2022. We focus on Java the language, as well as related languages like Kotlin and Scala, the Java Virtual Machine (JVM), and Java-based frameworks and utilities. By Michael Redlich, Ben Evans, Johan Janssen, Dalia Abo Sheasha, Billy Korando, Otavio Santana Read: https://www.infoq.com/articles/java-jvm-trends-2022/

Подборка актуальных вакансий — Devops-инженер Где: Санкт-Петербург, Москва, можно удалённо Опыт: от 1 года — Java-разработчик Где: Москва, можно удалённо Опыт: от 3 лет — Java-разработчик Где: Москва, можно удалённо Опыт: от 3 лет — Android-разработчик Где: удалённо Опыт: от 3 лет — Главный разработчик Где: Москва, можно удалённо Опыт: от 3 лет #вакансии #работа

How to convert Java 8 Stream to Array and ArrayList in Java? Example Tutorial It's relatively easy to convert a Stream to an array in Java 8by using the toArray()method of java.util.Stream class. By using this method you can convert any type of Stream to a corresponding array like a Stream of Strings can be converted into an array of String, or a Stream of integers can be converted into an array of Integers. The Stream.toArray()method is also overloaded, the one which doesn't take any parameter returns an Object[] which might not be very useful, particularly if you want to convert Stream of T to an array of T. Java Interview questions and tutorials Read: http://www.java67.com/2017/04/how-to-convert-java-8-stream-to-array-and-list-in-java.html

Amazon CloudFront Signed URLs and Cookies are now supported in AWS SDK for Java 2.x Read: https://aws.amazon.com/blogs/developer/amazon-cloudfront-signed-urls-and-cookies-are-now-supported-in-aws-sdk-for-java-2-x/

10 Examples Of RestTemplate in Spring Framework, Spring Boot and Java Hello guys, if you are wondering how to send GET and POST request to your API or Web Service from a Java based Spring Framework then you would be glad to know that You can use use RestTemplate class from Spring Framework. It's a fully functional HTTP client which is really really useful in this age of API. I have used RestTemplate to consume JSON from API before as well as sending different kind of request like POST, PUT, DELETE and PATCH to any REST API. For example, in this article, I shared how to send POST request using RestTemplate and how to set header on HTTP request using RestTemplate. Yes, RestTemplate also allow you to send headers like Authorization on Http Request. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/10-examples-of-resttemplate-in-spring.html

Array length vs ArrayList Size in Java [Example] One of the confusing parts in learning Java for a beginner to understand how to find the length of array and ArrayList in Java? The main reason for the confusion is an inconsistent way of calculating the length between two. Calling size() method on arrays and length, or even length() on ArrayList is a common programming error made by beginners. The main reason for the confusion is the special handling of an array in Java.  Java native arrays have built-in length attribute but no size() method while the Java library containers, known as Collection classes like ArrayList, Vector, etc,  all have a size() method. Java Interview questions and tutorials Read: http://www.java67.com/2014/04/array-length-vs-arraylist-size-java.html

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GraphQL: сложность запросов Всем привет! Меня зовут Олег Негрозов, я бэкенд-разработчик из команды Talantix. В мире GraphQL есть один минус, который одновременно является и плюсом — пользователь ограничен лишь описанной схемой. Он может попросить у сервера все данные, доступные ему, или написать такой сложный запрос, который будет выполняться целую вечность. О том, как защититься от этого и ограничить свои API, я расскажу в сегодняшней статье. Читать: https://habr.com/ru/post/705512/?utm_campaign=705512

GraalVM compilers may be coming to Java Read: https://www.infoworld.com/article/3683211/graalvm-compilers-may-be-coming-to-java.html#tk.rss_java

How to use @JsonCreator and @JsonPropertOrder Jackson JN Annotation in Java? Examples Before I tach you exactly how you can use the @JsonCreatorannotation, let me briefly tell you a bit more about what Java really is.  For those of you who don't know, Java is basically a general-purpose, class-based, object-oriented programming language that aims to have lesser implementation dependencies. You can also think of Java as a computing platform for application development. What sets Java apart is that it is fast, secure, and reliable. It can be used for developing Java applications with the help of laptops, data centers, game consoles, scientific supercomputers, and even cell phones. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/how-to-use-jsoncreator-jackson-in-java.html

How to convert List Of of Object to Map of Object (key, value) In Java? Example Tutorial Hello guys, if you have a list of object and you want to conver into Map of object or key value pair then you can use different ways like looping over list and then adding values to map, or you can use Collectors.toMap() by using Stream API, You can even use flatMap() function if you want to convert list of one type of object to Map of another type of object. All this is possible and I will show you code example of how to do that in this article, But, before we get into the process of how you can convert a list of one object to another in Java, let me tell you a bit more about what Java really is. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/how-to-convert-list-of-of-object-to-map.html

Как выбрать сервер для своего приложения, бота или сайта? Можно потратить несколько дней на то, чтобы тщательно разобраться в компонентах сервера, изучить всевозможные характеристики и варианты сборки. А можно прочитать нашу статью про идеальную конфигурацию для разных IT-проектов и обратиться к ребятам из SpaceWeb. Думаем, выбор очевиден — статья по ссылке: https://tprg.ru/EFMz Реклама ООО «СпейсВэб»

Difference between Class and Object in Java? Example Class and Object are two pillars of Java and any Object oriented programming language. There are multiple ways you can describe Class in Java, I will start with how I remember class from my college Days. That time, I used to remember that "A class is a blueprint to create object" and that's how I answer during viva or exam. While I know what is a blueprint, I didn't really understand what a class can do. Later, when I started coding, I learned about data types like int data type to hold integer values. String data type to hold text values. Java Interview questions and tutorials Read: http://www.java67.com/2022/06/what-is-class-and-object-in-java-and.html

How to check If two Strings Array are equal in Java? Example Tutorial Hello guys, if you are wondering how to check if two given String array are equal, I mean they contain same number of elements with same values and looking for solution then you have come to the right place. In the past, I have shared several coding questions on different data structures like linked list, binary tree, string, and even system design and today, we shall be working with arrays, Oh arrays are so pretty! And it’s very simple to learn. Having understood the concept of arrays the goal is to be able to check if two String arrays are equivalent. Java Interview questions and tutorials Read: http://www.java67.com/2022/01/how-to-check-if-two-strings-array-are.html