JavaLibraries recommends 5 very useful JAVA libraries

Super useful JAVA library JavaLibraries, a must-have for JAVA developers

Here's what you might need Java Libraries ,Java Developers have many great tools that make coding easier. They can map objects, map databases, mock APIs, use collections, and easily establish connections. Check out 5 amazing tools you can use in your projects right now. Java Libraries Let's take a look at these JAVA Libraries .

MapStruct - Mapping Entity to DTO

MapStruct is a compile-time, customizable Java Bean mapper that helps convert entities to DTOs. For example, it can be used to limit API responses to only the data needed to improve performance and reduce transmission requirements. There are also MapStruct Spring Extensions released a few days ago for Spring framework developers.

 MapStruct official website:https://mapstruct.org/

JavaLibraries: jOOQ - query databases with strong typing

For C# developers who have used LINQ, jOOQ will sound familiar. It is a tool that generates structures and methods based on your database metadata. With this approach, you can query your database using SQL-like syntax from your Java code. This means you don't have to write so many template files and you don't have to duplicate your database structure.

Likewise, your IDE will be able to provide you with more hints about available fields and types, and notify you when your code is out of sync with changes made in the database.

jOOQ official website:https://www.jooq.org/

JavaLibraries: WireMock - fake API responses

WireMock is a great API mocking library. It is written in Java and is primarily used by Java developers. But because it relies on easy-to-use configuration, it can be used by anyone who has to mock an API.

WireMock allows you to not stub responses via endpoint URLs, you can also put it between the client and your existing API. Through the proxy, some requests can still be handled by your API server, while others are mocked by WireMock.

WireMock official website:https://wiremock.org/

JavaLibraries: Eclipse Collections - Collections and structures on steroids

Standard APIs for data structures are generally poor across all programming languages. PHP developers have to use strpos to find a string that is longer than expected within another string, and Javascript developers have at least two libraries that extend the basic structures, Lodash and jQuery.

Java developers also have a comfortable set of libraries, one of which is Eclipse Collections. It has a large number of extension structures such as lists and bags, and methods such as forEachWithIndex that make code shorter and easier to understand.

Eclipse Collections official website:https://www.eclipse.org/collections/

JavaLibraries: HikariCP - Fast Connection Pool

Typically, when you develop an application in Java, it has to connect to a database. It could be MySQL, SQL Server, PostgreSQL, or anything else. Whatever you choose, connecting to a database always takes time. So, it's not efficient to do it every time your app receives a request.

HikariCP keeps a pool of open database connections to save some time for this operation. Connections are reused to make the most of these resources. The library is also quite small and has a lot of connectors for various databases.

HikariCP official website:https://github.com/brettwoldridge/HikariCP#essentials

The Java ecosystem is very flexible and fresh. When thinking about programming languages to learn, Java should always be on the shortlist!