What is intellij idea used for

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IntelliJ IDEA overview IntelliJ IDEA

IntelliJ IDEA overview. IntelliJ IDEA is an Integrated Development Environment IDE for JVM languages designed to maximize developer productivity. It does the routine and repetitive tasks for you by providing clever code completion, static code analysis, and refactorings, and lets you focus on the bright side of software development, making it not only productive but also an enjoyable experience.

IntelliJ IDEA overview IntelliJ IDEA
Intelli J IDEA is a Java IDE developed by Jet Brains - a software development company based on Praque, Czech Republic. The company was formerly named as Intelli J - you know it if you used Intelli J some years ago. As its name implies, the IDE is designed to be intelligent - focus on providing smart code auto completion, insight and analysis in every context - to improve developer’s experience and productivity. Intelli J IDEA is written in Java so it is a cross-platform IDE - meaning that you can use it on Windows, Mac or Linux. Jet Brains provides two editions for this Java IDE:- An open-source and free edition called Intelli J IDEA Community.- A commercial edition called Intelli J IDEA Ultimate. The Community edition is very limited in features: you can develop only Java desktop and Android applications. Whereas the Ultimate edition supports development of a wide range of Java technologies and frameworks. You can use the Ultimate edition for 30-day trial period and then pay for it. In 2014, Google announced Android Studio which is based on the open-source edition of Intelli J IDEA. In 2015, Jet Brains released the first version of Kotlin - a new programming language for the JVM (Java Virtual Machine). Kotlin is aimed to be a “better language” than Java. And in 2017, Kotlin becomes the official language for Android development. In terms of basic development features and technologies/frameworks support, Intelli J IDEA is similar to Eclipse and Net Beans. Virtually what you can build with Intelli J you can do the same with Eclipse/Net Beans. If not, you can easily find plugins for Eclipse/Net Beans. From my own experience, the biggest difference is Intelli J IDEA is smarter in terms of code auto completion, refactoring, debugging and other productivity features. For example, the auto-save feature is really cool: you don’t have to press Ctrl S anymore - the IDE automatically saves every letter you have typed. The IDE is able to feel the context better to provide more accurate and intelligent auto completion. For example, when you start typing the variable name for a method parameter, Intelli J IDEA suggests only possible values that are compatible to the type of the parameter. When you create a new HTML/JSP file, the IDE positions the cursor at the tag to let you edit the webpage’s title immediately. When you are editing a SQL statement in Java code, the IDE automatically suggests table and field names accordingly - if you set up an appropriate data source. When you write HTML, CSS and Javascript code, Intelli J IDEA knows what CSS and Javascript files you refer in the HTML document and provides auto completion like suggesting CSS class names and Javascript functions. If you are new to this IDE, you will find it a little bit difficult to use, especially if you are familiar with Eclipse or Net Beans. And over the time, you will feel more comfortable with Intelli J IDEA. I used both Community and Ultimate editions to develop several kinds of applications like Java web/enterprise, Swing, Java FX, Spring framework… and come to conclude that using Intelli J IDEA is not as easy as Eclipse/Net Beans. For example, when creating a Java servlet class via wizards, Intelli J IDEA is lack of options to configure URL mappings or choosing HTTP methods to implement. When design Swing GUI, the designer in Intelli J is worse than the one in Net Beans. And Tomcat in doesn’t reload changes like in Eclipse. Therefore, if you want to develop Android, Kotlin and Java enterprise applications with frameworks, Intelli J IDEA is a good choice. Here are some cool features of Intelli J IDEA that make our development experience more productivity and joyful:- Fast loading time, fast and intelligent code auto completion.- Auto-save: Intelli J IDEA saves everything you type instantly. So you never miss a single bit.- Download JAR libraries from Maven repository: if a dependency is missing, say My SQL Connector Java, the IDE lets you download it from Maven website and add it to the project’s lib directory. Very convenient - you don’t have to leave your IDE to open a browser.- Automatic labeling for method arguments: when you pass values directly as arguments to a method, Intelli J automatically shows the names of the parameters to improve code readability: - Support code completion for SQL statement right inside Java code: - Code Inspection: this feature allows you to quickly scan code for issues and recommendations from the IDE:- Support for developing Kotlin applications. You can convert Java code to Kotlin and vice-versa.- Support for developing Android applications.- Support for developing a wide range of Java technologies and frameworks (Ultimate edition only):- And you can quickly search and perform any action in the IDE, just by using the shortcut key Ctrl Shift A: Intelli J IDEA is not a perfect IDE. Here are some of its weaknesses:- The Community edition is very limited in development support. It allows you to develop only Java desktop and Android applications. And the Ultimate edition is costly.- Java web development (JSP/Servlet) is not easy and intuitive like Eclipse/Net Beans.- The Swing GUI Designer in Intelli J IDEA cannot be compared with the one in Net Beans. Jet Brains Homepage Intelli J IDEA Homepage is certified Java programmer (SCJP and SCWCD). He started programming with Java in the time of Java 1.4 and has been falling in love with Java since then. Make friend with him on Facebook and watch his Java videos you You Tube.Building Java projects straight from the IDE in Intelli J has been nice. I wasn't able to find any documentation on how Intelli J does these default builds. What I want to do is automate this fast and painless build process for anyone who downloads my project. I've usually used Maven, but it's very slow and error prone. I actually wasn't even able to convert this to a Maven project, because Maven refuses to find JUnit despite setting up the dependency according to examples in the official docs. I also tried to generate Ant build files from the IDE, but those do not work out of the box and after googling a bit, seems like that is not a good approach? Intelli J IDEA has its own build system, called JPS. It has limited support for automatic download of dependencies and it's really hard to invoke from the command line, so it's unlikely to be the best option for everyone who downloads your project, unless you want to force them to use Intelli J IDEA.Intelli J IDEA is a special programming environment or integrated development environment (IDE) largely meant for Java. This environment is used especially for the development of programs. It is developed by a company called Jet Brains, which was formally called Intelli J. It is available in two editions: the Community Edition which is licensed by Apache 2.0, and a commercial edition known as the Ultimate Edition. Both of them can be used for creating software which can be sold. What makes Intelli J IDEA so different from its counterparts is its ease of use, flexibility and its solid design. Intelli J IDEA was developed by Jet Brains, formerly known as Intelli J. It was first released in 2001, and it boasted features like advanced code navigation and the ability to refactor codes, which made it very popular. It even received the distinction of being voted the best programming tool based on Java in 2010, sidelining established tools like Net Beans, Eclipse and JDeveloper. The open-source development environment for Android released by Google in 2014 is also based on Intelli J IDEA. The IDE supports many other programming languages such as Python, Lua and Scala. The biggest reason it is regarded as one of the best programming tools based on Java is its assistance features, which makes it easy to use and makes the programs created by it very well designed. It also has advanced error checking features which allows faster and easier error checking.Intelli J IDEA is an intelligent, context-aware IDE for working with Java and other JVM languages like Kotlin, Scala, and Groovy on all sorts of applications. Additionally, Intelli J IDEA Ultimate can help you develop full-stack web applications, thanks to its powerful integrated tools, support for Java Script and related technologies, and advanced support for popular frameworks like Spring, Spring Boot, Jakarta EE, Micronaut, Quarkus, Helidon. Moreover, you can extend Intelli J IDEA with free plugins developed by Jet Brains, allowing you to work with other programming languages, including Go, Python, SQL, Ruby, and PHP. Every aspect of Intelli J IDEA is built to provide you with a seamless out-of-the-box experience. It provides quick access to all the features and integrated tools that are important to your work, as well as a wide range of customization options. You can fine-tune everything to support your workflow: set shortcuts, install plugins, customize the interface to your liking, and more. Even if this is your first time using an IDE, it shouldn’t take you long to get up and running with your first project. In the New Project wizard, you can set the project type, Java version, and supported build tools (like Maven and Gradle); Intelli J IDEA will configure all the remaining settings for you. This means you’ll be able to start working just moments after launching Intelli J IDEA. You can also open projects, import existing Maven or Gradle projects, and pull projects from Version Control Systems. It allows you to find just about any item inside or outside of the project. The range of your search can vary from files, actions, classes, and symbols to settings, UI elements, and even Git history. Check out this video for other shortcuts that are useful in just about any situation. You can spend long days coding in front of a screen as a developer, so making the UI easy on your eyes is important. We have several options available that allow you to create a comfortable environment to work in. You can use one of the standard color themes, like Intelli J Light or Darcula, or configure Intelli J IDEA to synchronize its theme with your OS preferences. Alternatively, you can give your IDE a completely new look, with over 100 interface custom themes to choose from. So whether you are in the mood for Jet Brains is committed to making our products accessible to everyone. Intelli J IDEA lets you enable various accessibility features that will accommodate your needs. Screen readers are compatible with Intelli J IDEA, for example. You can also configure the colors for different UI elements, add a contrast color for scrollbars, resize tool windows and the size of the text in the editor, and more. If you'd like to supplement the core functionality of the IDE with additional features, you can extend Intelli J IDEA with plugins. We support an extensive plugin ecosystem that meets practically all of the needs a developer might have. Check out the Kubernetes plugin to manage containerized applications, or get a cute Nyan Progress Bar! You can install all the plugins via Though designed primarily for Java development, Intelli J IDEA understands many other programming languages, including Groovy, Kotlin, Scala, Java Script, Type Script, and SQL, and it provides smart coding assistance for each of them. Initial indexing of source code allows the IDE to create a virtual map of your project. Using the information from the virtual map, it can detect errors on the fly, suggest code completion variants with precise context-awareness, perform refactoring, and more. Intelli J IDEA is very good at checking over the quality and validity of your code with on-the-fly inspections. These inspections help you code faster, comply with the highest quality standards, and stay confident through the whole development process. We provide a host of standard inspections, as well as dozens of framework-specific ones covering a wide range of problems, such as Spring bean class autowiring errors, etc. If Intelli J IDEA finds any issues, it offers to help solve them via context actions, which include quick-fixes for highlighted errors and intention actions for changing your code if the issues are minor. To invoke a context action, click the light bulb icon (or press Intelli J IDEA provides context-sensitive code completion, offering you suggestions that are only valid for the current caret position. You don’t need to use any shortcuts or configure additional settings; code completion will start as soon as you begin typing your code in the editor. Intelli J IDEA uses machine learning to ensure the most relevant suggestion is at the top of the list. To learn more about code completion, check out this blog post. Intelli J IDEA lets you work with elements of code in other languages embedded in your code. You won’t notice a difference between your experience working with the core Java code and your experience with the code that you’ve injected. We provide code highlighting, completion, error detection, and other coding assistance features for embedded code fragments. To add a snippet of alternative code into Java, just press Intelli J IDEA has lots of useful diagrams that can help you visualize and analyze your code and navigate through it. Depending on their types, these diagrams can reflect the structure of classes and methods in your application, of the database objects, of entity beans defined in your module, and so on. You can call a list of available diagrams via Diagrams / Show Diagram from the context menu. Live templates is a powerful feature that helps speed up your coding. Just type in an abbreviation predefined in the template to insert standard code constructs into your work quickly. You can also create your own custom templates, which you can use to insert snippets of code that you use repeatedly. Intelli J IDEA’s automatic refactoring feature lets you update your code safely and efficiently, both simplifying it and making it more readable and easier to maintain. The IDE offers a wide selection of refactorings that will help you safely rename code elements, change the signature of a class or a method, extract a code fragment to a method, and introduce variables. Watch our video on the refactorings that are essential to everyday coding. , which makes it possible to search for a text string in your project and apply a variety of options to narrow down your search. For example, you can use various scopes, find occurrences, and exclude certain items from the search. To call this tool, highlight the string you want to find and press SSR is a great tool for finding and replacing code patterns while taking the syntax and semantics of code into account. The easiest way to use it is to start with the existing template, which you can alter manually or add filters to narrow down your search. It is possible to save the modified template as a new one. It is best practice to find and analyze all the usages of a code element before changing it. By default, if you select a symbol in the source code, Intelli J IDEA will automatically highlight all its usages in the current file. If you need to see the list of usages throughout your project, place the caret inside the symbol and invoke the When working with frameworks in Intelli J IDEA, it is possible to navigate through your code using the gutter icons. Click on them to see a list of all the navigation options each framework supports. What’s more, the URLs are also clickable, allowing you to get from the client to the service. button in the toolbar at the top of the window or near a class declaration in the editor gutter. If you need to customize how your program starts up, you can use run/debug configurations that contain various run and build properties, including the desired JDK/JRE, the environment in which you want to run your project, and more. feature lets you run, test, profile, and debug your application in Docker containers and on remote machines. Intelli J IDEA Ultimate provides the ability to run Java applications and JUnit tests, as well as Maven, Gradle, Micronaut, Maven-based Quarkus, and Spring Boot projects on Docker, SSH, and WSL targets. Intelli J IDEA supports the most popular testing frameworks, like JUnit, Test NG, Cucumber, Arquillian JUnit, and Selenium (available in the plugin Marketplace). The IDE is equipped with an environment and a set of tools for developing and running effective and readable automated tests. You can switch between test classes and source code with a shortcut, run multiple tests, view statistics for each test, and more. For analytics, use the Code Coverage feature which shows the percentage of code covered by unit tests. A debugger is an indispensable tool for detecting bugs and reviewing what's happening under the hood of your program. To prepare for debugging, set breakpoints in the places where you want to suspend the program’s execution and examine the program’s state and behavior. Once the breakpoints are set, you can start debugging. Intelli J IDEA’s debugger has several unique features. When you debug your code, the IDE shows you variable values in the source code next to their usages and lets you change the values. You can also use the Intelli J IDEA includes fully functional integration with the Maven, Gradle, Ant, and Gant build tools, which help automate the build process. The IDE provides built-in options for compiling and packaging Java code, running tests, deployment, and other activities. Intelli J IDEA’s built-in terminal lets you work with the command-line shell from your IDE without having to switch to a dedicated terminal application. It supports all the same commands as your operating system. From the terminal you can easily get back to the Intelli J IDEA UI by clicking on URLs and stack traces or by pressing You can manage databases right from the IDE with the Database tools that are shipped with Intelli J IDEA Ultimate. Take advantage of intelligent coding assistance when editing SQL queries, connect to live databases, run queries, browse and export data, and even manage your schemes in a visual interface. The built-in profiler helps you to optimize the performance of your application by analyzing your code and providing you with accurate info about its CPU-intensive and memory-intensive sections. In Intelli J IDEA, you can open snapshots, attach the profiler to running processes, and view live charts that visualize CPU and memory consumption in running applications. Intelli J IDEA’s integration with the Async Profiler and Java Flight Recorder profiler tools allows you to do all this right from the IDE. files, which you can create, edit, and execute in the HTTP client. This tool is built into the Intelli J IDEA editor, providing extensive coding assistance for your HTTP requests, including code completion, highlighting, refactorings, and so on. You can easily access the HTTP Client from the source code: click the globe icon next to the URL and select file without having the source code for it, the IDE will display its readable contents. The yellow panel above the editor will inform you that you are working with a decompiled file. If you want to, you can set breakpoints in the decompiled code and debug it. Read this blog post to learn more about the decompiler. Intelli J IDEA supports the most popular version control systems, like Git, Subversion, Mercurial, and Perforce, out of the box. You can clone a project from a VCS right from the Welcome screen, examine the differences between two revisions, manage branches, commit and push changes, merge conflicts, review the history, and more. For more details, watch this overview of the key VCS functionality in Intelli J IDEA. Intelli J IDEA offers Git integration that lets you clone projects from Git, commit and push changes, work with several branches, manage changelists, and stage updates before committing them. In Intelli J IDEA, you can access the history of the entire project and of individual folders and files using the You can manage Git projects hosted on the Git Hub platform right from Intelli J IDEA. It is possible to clone repositories, share projects, and share code through gists. What’s more, Intelli J IDEA supports creating, merging, and viewing pull requests. Watch our video to learn more about working with Git Hub pull requests. is an excellent tool for tracking any changes you make. This feature also allows you to roll back to any project state, undo changes, and restore any files that were accidentally deleted. For more information about Intelli J IDEA Ultimate provides first-class support for leading frameworks and technologies geared toward the development of modern applications and microservices. Your IDE comes with dedicated assistance for Spring and Spring Boot, Jakarta EE, JPA, Reactor, and other frameworks. For the Spring and Spring Boot frameworks, Intelli J IDEA Ultimate features smart code insight, inspections, instant code navigation, and highly customizable run configurations. It also offers built-in tools that let you run and test Spring apps and work with HTTP requests and database tools. You can also get an aggregated view of the client and server APIs used in your project for HTTP and Web Socket protocols in the Endpoints tool window. For a more detailed description of what Intelli J IDEA has for Spring and Spring Boot, check out this webpage. In Intelli J IDEA Ultimate, you can develop Java enterprise applications based on Jakarta EE and Micro Profile specifications. Intelli J IDEA Ultimate supports all Jakarta EE features, including CDI, JPA, Batch, Bean Validation, JSF, JAX-RS, Web Socket, Servlets, JSP, JSON Binding and Processing, Security, and the EJB and JTA specifications. Intelli J IDEA Ultimate has support for the most commonly used microservice frameworks – Micronaut, Quarkus, and Helidon. Intelli J IDEA provides intelligent coding assistance, integration with Endpoints, and project creation wizards for all of them. When you work with a vast number of Java objects, you may want to store them in a database. Persistence frameworks provide a collection of methods and classes to make this possible. Intelli J IDEA Ultimate integrates with the most frequently used frameworks of this kind – Jakarta Persistence (JPA), Hibernate, and R2DBC. Right out of the box, you get framework-specific coding assistance, the opportunity to customize framework configurations, and the Persistence tool window for viewing and managing various JPA, Hibernate, and R2DBC items. Need to work on UIs for your web application or develop with Node.js? It includes all the features from Web Storm, our IDE for Java Script and related technologies. All of these features are available either out of the box or via free plugins. You can use Intelli J IDEA Ultimate to build applications with Java Script, Type Script, React, Vue, Angular, Node.js, and other related technologies. You can expect the same advanced coding assistance that you are used to when working with Java in all of them. You can also work with HTML and style sheets in Intelli J IDEA. Just like with other languages and technologies, you will get advanced coding assistance, including code completion, navigation, and refactorings. Additionally, you can preview static HTML files right in the IDE. The changes you make to an HTML file or the linked CSS and Java Script files will be saved, with the preview reloaded automatically. In Intelli J IDEA, you can run and debug your code and client-side apps with the help of Chrome. Put breakpoints, step through the code, set watches, and more – all from the editor with a unified experience across different kinds of applications, from vanilla Java Script to Type Script and Vue projects. Intelli J IDEA Ultimate supports Thymeleaf, Velocity, Liquid, Go Template, Mustache, and other template languages. It provides code highlighting, autocompletion, inspections, context actions, and more smart features to help you develop templates with ease. To keep up with modern software development, Intelli J IDEA Ultimate offers integrations with the most popular container orchestration systems – Kubernetes and Docker. We also have third-party plugins for deploying code to AWS, Google Cloud, and Azure. Intelli J IDEA provides integration with major application servers: Tomcat, JBoss, Web Sphere, Web Logic, Glassfish, and more. Right from your IDE, you can start and stop local servers, connect to running remote servers, deploy your artifacts on those servers, and even debug your applications on them. You can run and debug your applications in Docker containers, download and build images, run multi-container applications using Docker Compose, and more, all from the IDE. Intelli J IDEA Ultimate provides integration with Docker out of the box. For Intelli J IDEA Community Edition, you can download the Docker plugin from Jet Brains Marketplace by going to Intelli J IDEA Ultimate is fully integrated with Kubernetes – an open-source system for the deployment, scaling, and management of containerized applications. You are able to browse cluster objects and extract their configurations, view and download pod logs, run a shell in a pod, apply resource YAML configurations from the editor, and delete resources from a cluster. In addition to this, Intelli J IDEA Ultimate offers both rich YAML support and basic JSON support, including auto-completion, quick documentation, inspections, and quick-fixes. Intelli J IDEA provides a service for collaborative development and pair programming – Code With Me. It lets you share the project currently open in your IDE with others so you can work on it together in real-time. Code With Me also features video and voice calls from the IDE, allowing you to organize both 1-on-1 meetings and group sessions with dozens of participants. You can learn all about Code With Me in this series of blog posts. Intelli J IDEA offers integration with Jet Brains Space, an all-in-one solution for software projects and teams. Connect Intelli J IDEA to your Space organization to view and clone project repositories, review your teammates’ code, and write Space Automation scripts.Intelli J is one of the most powerful and popular Integrated Development Environments (IDE) for Java. It is developed and maintained by Jet Brains and available as community and ultimate edition. This feature rich IDE enables rapid development and helps in improving code quality. It is a combination of multiple tools, which make software development process easier, robust and less error-prone. It has following benefits over plain text editor − Intelli J IDEA has some top productive Java code completion features. Its predictive algorithm can accurately assume what a coder is attempting to type, and completes it for him, even if he doesn’t know the exact name of a particular class, member or any other resource. Intelli J IDEA really understands and has a deep insight into your code, as well as the context of the coder, which makes it so unique among other Java IDEs. Intelli J IDEA is designed around the coding principle that developers should be allowed to write codes with as less distraction as possible. That is why in this case, the editor is the only thing visible on the screen, with dedicated shortcuts for all other coding-unrelated functions. The Ultimate Edition is designed to assist in web and enterprise development, whereas the Community Edition is designed for JVM and Android Development.Android Studio plugins extend or add functionality to the Android Studio IDE.Plugins can be written in Kotlin or Java, or a mix of both, and are created using Intelli J IDEA and the Intelli J Platform. Once completed, plugins can be packaged and distributed at Jet Brains Plugin Repository.

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