Project types in java

Creating a New Project in IntelliJ IDEA

You can use this wizard to create new IntelliJ IDEA projects from scratch or to set up modularised projects.

This blog post covers the same material as the video. This provides an easy way for people to skim the content quickly if they prefer reading to watching, and to give the reader/watcher code samples and links to additional information.

The New Project Wizard can help you to create standard Java projects with different types of build systems and other common project types. In our Ultimate edition there are more project types including Java Frameworks such as Spring. This image shows the options available in Community versus those available in our Ultimate edition. There’s also a more detailed matrix available.

We used the Ultimate edition of IntelliJ IDEA in the screencast to show you all the options for the different types of projects.

IntelliJ IDEA Welcome Screen

If you’ve not opened an IntelliJ IDEA Project before, you’ll see these options in the Project tab of the Welcome screen in IntelliJ IDEA 2020.3. Let’s take a quick look around before we start a new project as it’s worth familiarising yourself with some of these changes.

On the Customize tab you can edit preferences that will affect all your new IntelliJ IDEA projects. In 2020.3 you can also sync IntelliJ IDEA with your operating system theme.

The All settings link in the Welcome screen shows you settings that apply to all IntelliJ IDEA new projects. The same settings are also available inside a project, and then they apply to that project. As you’d expect, you can search for what you want to change in the top-left hand corner.

In the Plugins tab, you can view plugins in the marketplace as well as see those that you have installed. IntelliJ IDEA Community and Ultimate come bundled with some selected plugins.

The Learn IntelliJ IDEA tab helps you to learn the IDE with a range of resources for you to choose from.

Let’s take a quick look at the Projects tab again. This is what it will look like if you’ve previously opened projects in IntelliJ IDEA.

Projects that are shown in grey have been removed from that location on your machine, such as our HelloWorld project here. You can use the button on the right to remove them from the list as well as perform other actions

Projects Tab

Let’s go back to the out-of-the-box experience for the Projects tab. The interface has changed in 2020.3, but the functionality is the same as previous versions.

We can use Get from VCS to get a project from version control by pasting the link here and then pressing Clone to create a copy on our local machine.

We can also use Open for a project that already exists on our machine.

Finally, we can use New Project to create a new project using the New Project Wizard. This wizard is available in earlier versions of IntelliJ IDEA; the screencast shows version 2020.3.

New Project Types

On the left-hand side is a list of the types of projects that you can create.

The first group is standard Java projects. These are available in our Community and Ultimate editions. This list includes

The second group contains Java Frameworks. These are available in our Ultimate edition. This list includes:

The remaining project types are other common languages and frameworks that you can use to create a new project. Some are available in our Ultimate edition, some are in both are Community and Ultimate editions. They include:

• Groovy (Community and Ultimate)
• Grails (Ultimate only)
• Application Forge (Ultimate only)
• Kotlin (Community and Ultimate)
• Web. This is an empty project for developing apps using JavaScript, HTML, CSS, and Node.js.) (Community and Ultimate)
• JavaScript (Ultimate only)
• Empty Project (Community and Ultimate) The Empty Project option is very useful when you want to create a modularised project from scratch.

Project SDK

The Project SDK drop-down varies depending on which project type we select. Because we selected Java, the Project SDK refers to Java Development Kits, or JDKs.

The first JDKs at the top of the list, JDK 11 and 15 in this case are the JDKs that IntelliJ IDEA has already been configured to use. The Detected JDK at the bottom of the drop-down, JDK 1.8 in this case, is a JDK that IntelliJ IDEA has found on my machine but is not yet configured for use with IntelliJ IDEA. If we click it, it will move to the top of the list so that we can now use it with my projects if we want to. However, let’s stay with Java 15.

You can use Download JDK to ask IntelliJ IDEA download JDKs for you from some selected vendors. Select the version you want and then choose your vendor. For example, version 14 and Adopt Open JDK with hotspot.

Lastly, you can also use Add JDK if you have a JDK that you have on your machine, but has not been detected by IntelliJ IDEA. This allows you to navigate to that JDK so that you can associate it with your projects in IntelliJ IDEA.

Creating a New Java Project

The Java option allows you to create a new Java project using the IntelliJ IDEA build system. You can add additional libraries and frameworks to your Java project such as Groovy or Kotlin. You can also add SQL in our Enterprise Edition. If you select a library that you don’t have downloaded, IntelliJ IDEA will ask you to create one. In this case, we have a Kotlin library downloaded, so we can select that.

The Maven option allows you to create a new Java project using the Maven build system. You can select to Create from archetype and Add an Archetype if required.

The Gradle option allows you to create a Java project using the Gradle build system. Again you can select additional libraries and frameworks for your Gradle project if required.

We can create our new Java project using the IntelliJ IDEA build system with a Kotlin library that we already have.

You need to give it a name, such as HelloWorld, check the proposed location for your project, and review the module settings if required.

When you’re happy, press Finish to get IntelliJ IDEA to create your new project. Our project is created with JDK 15 and our Kotlin library.

Summary

The New Project Wizard is very useful for creating projects from the beginning and handling a lot of the build tool set up for you for a range of project types.

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Project types that Java fits best

When the idea for any software is born – the first question that arises for an entrepreneur is what technologies to use? The right answer to this question can be the key factor in the future, both for the project and the business as a whole. There are many programming languages and making the right decision can be very difficult. In this post, we will look at one of the most popular programming languages in the world and the advantages of using it for different types of projects. Of course, it’s Java. Java was created over 25 years ago and has since then been confidently holding its place on the top of software’s Olympus.

Empowering Cross-Platform Development

One of the main advantages of applications written in Java is their cross-platforming. Java was created with the idea of WORA – Write Once, Run Anywhere, and an excellent implementation of this principle determined its success. Your software will work equally efficiently anytime and anywhere – on Windows, Linux or UNIX-based servers. This allows you to quickly respond to market changes, be flexible and make you independent of the monopolist of the proprietary server OS market. You can deploy the infrastructure in any place you need as quickly as possible and almost without limitations. If the project is working with cloud solutions, Java is the best choice too, as all cloud solutions have SDKs that are very well documented for Java.

The second advantage comes from the properties of the language type, which in the case of Java is the strict typing. On one hand, it complicates writing of the code a bit and makes the development process a little longer in comparison to scripting languages. On the other hand, it’s your trump card, because software written in Java will always be easy for any programmer to read, understand and take over its development. By choosing Java to create your software, you get minimal expenses for maintaining the system and the biggest opportunities for modification in comparison with most of the other languages.
In the course of its long history, Java got enriched myriads of libraries and frameworks that allow you to create complicated, scalable and high-performance systems in the shortest possible time.

The Ideal Choice for Enterprise Solutions and Mission-Critical Projects

There were periods when Java was being successfully used as a language for writing applets and desktop applications. However, it has become a true rockstar in the field of developing web-based back-end solutions, where it still keeps a leading position.

Today, many experts unofficially call Java a “kingmaker” in the world of an enterprise solution, because it is used everywhere. In almost every complex system, you will find Java. Java systems are easily scalable in alignment with business needs. The power and flexibility of Java allows you to support and develop your products over many, many years.

Java is also a great choice for all types of enterprise solutions like ERP, CRM, BPM, manufacturing process control, security systems or financial solutions. For many years, both large corporations and smaller businesses have chosen Java as the foundation for the back-end of their solutions, because when the cost of an error or a simple downtime can be millions of dollars, only the best, most tested and reliable solutions are used. Of course, there is always the temptation to write a project as quickly as possible, for example using popular scripting languages such as PHP. But, after a short period of time, there is a risk that the cost of maintaining the efficiency of your product goes through the roof and the only way to save the situation is to create the platform from scratch, using strict typing languages such as Java or .NET. Moreover, any malfunction in the work of complex systems is a huge reputation loss for the company, which can “bury” the business. Why pay twice and risk everything?

Benefits of Java

Choosing Java for your product you get:

1. Great scalability (are you planning your business to grow?)
2. Flexibility in further development and support
3. Maximum reliability and system’s resilience
4. The possibility of simple integrations with any other systems including IoT.
5. A myriad of partners for support and development – Java community is one of the biggest in the world

Are you making a breakthrough in the IoT?

Again, Java will be the best choice, because 30 years ago it was created as a language for applications for PDA devices (Personal Digital Assistant), the ancestors of modern smartphones. Later, over the next decade, Java evolved into a more universal platform, since it turned out that this language is great for creating applications that work on modern devices. Today, Java is used in billions of devices from set-top boxes and printers to sophisticated industrial security devices. One of its main advantages in this area is that the applications written in Java are not draining the device resources that much. It’s a matter of fact, that in the 90’s and at the beginning of the 21st century, the devices had a very limited amount of RAM and small computing power – many times smaller than nowadays. Therefore, Java was created specifically for the use within this resource-intensive environment, that requires functional applications with minimal processing power. This admirable feature has been preserved to this day, thanks to which Java-based applications for IoT can have very modest system requirements, using minimal computer resources and memory.

The modern world has become mobile, most people use only smartphones or tablets in everyday life. And in this mobile world, Java again plays a decisive role. About 80 percent of smartphones and tablets in the world run on Android, which is Java-based as well. You can write any application in Java for this OS, but the most important thing is that Java is ideal for the server-side, as it allows you to easily and quickly collect and process data received from any mobile device.

In fact, if we evaluate the properties of Java and its ecosystem, we can conclude that in general it is a great solution for any complex project, especially if you plan on its growth and long-term development. By choosing Java, you get reliable high-performance and easily scalable software that will become the driver of the successful development of your business.

If you want to talk with us about your project — Contact Us.

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