Чашечка Java

Top 20 Apache Spark Interview Questions and Answers As a Big Data specialist, it's critical that you understand all of the words and technologies associated with the area, including Apache Spark, which is one of the most prominent and in-demand Big Data technologies. With the IT industry’s increasing need to calculate big data at high speeds, it’s no wonder that the Apache Spark mechanism has earned the industry’s trust. Apache Spark is one of the most common, general-purpose, and cluster-computing frameworks. There are many common interview questions which is related to apache sparks. Let's have a look at each of them with explanations. Java Interview questions and tutorials Read: http://www.java67.com/2022/12/top-20-apache-spark-interview-questions.html

Top 20 Oracle Database Interview Questions with Answers for 3 to 5 Years Experienced Hello guys, if you are a developer or a database administrator and preparing for Oracle database interview and need common Oracle database questions for 1 to 5 years experienced then you have come to the right place. Earlier, I have shared tricky SQL query interview questions as well as popular database interview questions and in this article, I am going to share popular Oracle interview questions with answers. If you have used Oracle database for a couple of years or worked as Oracle database administrator then most likely you will know answers of all these questions but if you struggle to answer them then you can always go back and checkout these best Oracle database online courses to learn and revise key Oracle database concepts. Java Interview questions and tutorials Read: http://www.java67.com/2022/06/top-20-oracle-database-interview.html

Top 21 Python Interview Questions Answers for 1 to 2 Years Experienced Programmers Hello guys, if you are new to programming world, looking for your first Job in software development, particularly for Python developer, and looking for frequently asked Python interview questions then you have come at the right place. Earlier, I have shared best Python courses, books, Python projects, best place to learn Python and many interview questions on Data Structure, System Design, OOP Programming, and Recursion, which are essential topic for any programming interviews, including Python Developers and Engineers and in this article, I am going to share Python questions. These are the questions about Python programming language, Python tools, and Python eco-system in general. Java Interview questions and tutorials Read: http://www.java67.com/2022/10/python-interview-questions-answers-for.html

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

Top 20 PL/SQL Interview Questions with Answers in 2023 Hello guys, if you are preparing for Oracle or PL/SQL Job or a Developer job where PL/SQL skills are needed and looking for frequently asked PL/SQL Interview Questions then you have come to the right place. Earlier, I have shared both best PL/SQL courses and best PL/SQL books and in this article, I am going to share popular PL/SQL Interview Questions you can revise before your interview. Preparing for PL/SQL Interview is not a rocket science and you can prepare for it the same way you prepare for other interviews. Java Interview questions and tutorials Read: http://www.java67.com/2022/06/top-20-plsql-interview-questions-with.html

Top 20 DevOps Interview Questions with Answers for Experienced Developers in 2023 Hello guys, if you are preparing for DevOps Engineer job interview or a Developer interview then preparing DevOps questions is quite important. I have seen a couple of DevOps related questions on Java developer interview in last a couple of years. Interviewers are now expecting you to become familiar with Cloud, DevOps and essential DevOps tools like Docker, Kubernetes, Ansible, Terraform tec. If you have been moving around looking for a way which will help you pass your DevOps interview that is around the corner, you have come to the right place at the right time. Java Interview questions and tutorials Read: http://www.java67.com/2022/07/devops-interview-questions-with-answers.html

Top 18 CSS Interview Questions and Answers for 1 to 2 years experienced Hello guys, if you are preparing for web developer interview then you must prepare for CSS Interview questions. CSS is one of the three core technologies of the World Wide Web(WWW). A website is incomplete without CSS. The first feature of a website noted by the visitors is its presentation. It does not matter how excellent the behind-the-scenes of a website are, if the client-side view is not appealing, the website is almost a failure. Thus, CSS is as important as JavaScript. Java Interview questions and tutorials Read: http://www.java67.com/2021/09/-css-interview-questions-and-answers-for-.html

Top 21 Git Interview Questions and Answers for Programmers and DevOps in 2023 Hello guys, if you are preparing for Software developer interview then you should prepare for Git, one of the essential and most popular version control and source control tool in Software industry. Almost every company, both big and small are now using Git to store their source code and conduct code reviews, yes the code review is one of the main reason many organization shifted to Git. Both Github and BitBucket provides in-built code review features which also promote good software development practices. Java Interview questions and tutorials Read: http://www.java67.com/2022/07/top-20-git-interview-questions-with.html

Top 20 Golang Interview Questions with Answers Hello guys, if you are preparing for Golang Developer Job interview and looking for frequently asked Golang Interview questions then you have come to the right place. Golang is one of the modern and in-demand programming language from Google and more and more companies have started using Golang for their flagship project like ByteDance is using Golang for TikTok and their other projects. In the past, I have shared best Golang courses  as well as free Golang courses and in this article, I am going to share 20 common Golang Interview Questions with Answers. These questions covers essential Golang concepts which every Golang developer should be familiar with. Java Interview questions and tutorials Read: http://www.java67.com/2022/07/golang-interview-questions-answers.html

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Реализация gRPC с помощью Java и Spring Boot Хорошо бы понимать различия между HTTP/1.1 и HTTP/2, поскольку gRPC использует HTTP/2 по умолчанию. Читать: https://habr.com/ru/companies/otus/articles/730740/?utm_campaign=730740

Boosting Quarkus Native Performance: Should You Stick with Space/Time or Switch to Adaptive GC? Quarkus, the Kubernetes Native Java Framework, has switched its default garbage collection policy from space/time to adaptive GC for native runtime in version 2.13.6.Final. Adaptive GC is designed to trigger GCs aggressively in order to keep memory consumption low. This makes it effective in situations where a low memory footprint is essential, and it appears to perform better under heavy stress. By A N M Bazlur Rahman Read: https://www.infoq.com/news/2023/04/boosting-quarkus-native/

Kafka Client для фреймворка Ktor Мне понадобилось написать приложение на Ktor с использованием Apache Kafka и Kafka Streams. Официального клиента или плагина для Ktor'a я не нашел, а работать с ванильной Кафкой не хотелось, поэтому я как любой уважающий себя разработчик решил написать велосипед. Читать: https://habr.com/ru/articles/730594/?utm_campaign=730594

Top 20 Hadoop Interview Questions and Answers for Java Developers With the increasing demand for big data processing and analysis, Hadoop has become one of the most sought-after skills in the IT industry. And what better way to showcase your knowledge and skills than by acing a Hadoop interview? But before you jump into the deep end, let's brush up on the basics. In this article, we've compiled a list of the top 20 Hadoop interview questions with answers. This will not only help you prepare for your interview but also give you a good understanding of the Hadoop ecosystem. So, put on your game face, get ready to have some fun, and let's get started! Java Interview questions and tutorials Read: http://www.java67.com/2023/04/top-20-hadoop-interview-questions-and.html

5 Difference between Iterator and ListIterator in Java? The Iterator is the standard way to traverse a collection in Java. You can use Iterator to traverse a List, Set, Map, Stack, Queue, or any Collection, but you might not know that there is another way to traverse over List in Java? Yes, it's called the ListIterator. There are many differences between Iterator and ListIterator in Java, but the most significant of them is that Iterator only allows you to traverse in one direction,I mean forward, you have just got a next() method to get the next element, there is no previous() method to get the previous element. Java Interview questions and tutorials Read: http://www.java67.com/2016/09/5-difference-between-iterator-and-ListIterator-in-java.html

HelloWorld Program in Java with Example First of all, welcome to the exciting world of Java programming. If you are ready to write your first Java program i.e. HelloWorld in Java, it means you already crossed major hurdles to start Java programming, in terms of installing JDK and setting PATH for Java. If you haven't done so then you can follow those tutorials to install JDK in Windows 7 and 8 and setting PATH for Java. Before we start writing HelloWorld in Java, few notes about editors. Many Java beginners insist or try to use Eclipse or Netbeans IDE from the very start of the first program, which is not a good idea. Java Interview questions and tutorials Read: http://www.java67.com/2013/03/helloworld-in-java-how-to-write-compile-example-tutorial.html

Difference between GenericServlet vs HttpServlet in Servlet JSP - J2EE question Difference between GenericServlet and HttpServlet is one of the classic Servlet Interview Question, asked on many Servlet and JSP Interviews on 2 to 4 years experience developers. Since both GenericServlet and HttpServlet form the basis of Servlets its important to know What are they and What is main difference between them. From common sense and there names, its obvious that GenericServlet is a generic and protocol-independent implementation of Servlet interface while HttpServlet implements HTTP protocol specifics. If you are working in Java web application or J2EE projects, you are most likely to deal with HttpServlet all time as HTTP is main communication protocol of web. In this Servlet JSP article we will outline some important difference between HttpServlet and GenericServletwhich is worth knowing and remembering. Java Interview questions and tutorials Read: http://www.java67.com/2012/12/difference-between-genericservlet-vs-httpservlet-jsp.html

How to Fix java.lang.VerifyError: Expecting a stack map frame at branch target 14 in method at offset JDK 7 [Solved] Hello guys, today, we'll take a look at the not-so-common error for Java applications. If you have been working in Java for a couple of years then you might have seen this dreaded "java.lang.VerifyError: Expecting a stack map frame at branch target 14 in method at offset JDK 7"error in your application log or in Eclipse, particularly if you are running your Java application in Java 7. The main cause of this error,"java.lang.VerifyError: Expecting a stack map frame at branch target ... in the method ... at offset 0 error comes when you have some library, JAR file which is only compatible with Java 1.6 or below and you are running your program in JDK 1.7. Java Interview questions and tutorials Read: http://www.java67.com/2020/04/javalangverifyerror-expecting-stack-map.html