Difference between Groovy and Java

Programmers have been using scripting languages for quite some time. When it comes to Linux and Unix computers, scripting languages were mostly utilised for things like scripting tasks that automate platform customizations, software installations, and one-shot command line jobs with bash scripts.

Server-side scripting languages like PHP have been increasingly popular for use in the development of high-traffic websites. Server-side scripting languages are also the most appropriate choice for use in critical business applications. Scripting languages are generally not dependent on any one platform, nor do they typically communicate with one another. On the other hand, the integration is not always straightforward or obvious. This is where Groovy enters the picture.

Groovy is an authentically creative language that runs on the same virtual machine as Java. Hence, it can interact with Java in a way that is both efficient and effective. Despite the fact that Java is one of the most popular and commonly used programming languages for producing content for the web, certain activities, such as file handling and string manipulation, can be quite difficult to accomplish when using Java.

Groovy makes the learning curve for Java developers easier by bringing a syntax that is similar to Java and is both straightforward and expressive. It can be put to use in a wide variety of contexts, from the processing of data to the manipulation of strings and even the testing of new APIs. And the greatest part is that Groovy neatly draws on your previous knowledge with the Java platform, allowing you to integrate the two without any clunky transitions.

What is Groovy?

Groovy is an object-oriented programming language that was created in 2007 and received a second edition in 2014. It is dynamic, can have its types optionally specified, and was designed specifically for use in the development of software on the Java platform. Because it extends the Java Development Kit, Groovy is also able to read and work with code and applications written in Java.

Default Imports

  • java.io.*
  • java.lang.*
  • java.math.BigDecimal
  • java.math.BigInteger
  • java.net.*
  • java.util.*
  • groovy.lang.*
  • groovy.util.*
  • Where in Java only java.lang.* package imported by default.

Groovy code automatically imports the Java packages known as BigInteger whenever the language is used. In Groovy, each and every expression is automatically evaluated and carried out as a Boolean expression. The most recent version of Groovy was published in 2015, and since then, it has undergone significant performance improvements, making it today directly competitive with Java.

Groovy contains idioms for programming that are unique to it, yet it also shares a lot of code with Java, which enables programmes that were developed in Java to also run on Groovy. Groovy is both a programming language and a scripting language due to its integrated support for markup languages. Markup languages are the languages in which web pages are written.

Because Groovy was used in their development, useful programmes such as Grails and other Domain-Specific Languages (DSL) offer a very high level of convenience. Due to the fact that Apache Groovy is an open-source project, it is continually undergoing development by a diverse group of developers who work independently. Groovy is used by a variety of significant organisations, including Starbucks, in the process of creating their online presence.

What is Java?

James Gosling created the object-oriented programming language Java in 1995, and the first version of Java was made available to the public in 1996. It has a Write-Once, Run-Anywhere (WORA) architecture and is highly modular. A Java Virtual Machine is what actually runs the bytecode that is generated by Java programmers after they have been developed. Because portability was one of the primary drivers behind the development of Java, this style of interpretation, which consists of two steps, is adopted. Portability is achieved with the help of this technology since final users are able to execute bytecode within Java runtime environments such as "BlueJ".

The Java programming language is extremely user-friendly and intuitive. However, the fact that it is platform-independent, which means that Java code can be moved to and run on any computer system, is possibly the most significant benefit of using Java as a programming language. Even while programmer built in Java require a greater amount of memory, the benefits of using them much exceed the drawbacks.

Java was greatly influenced by languages that came before it, such as C and C++, both of which were quicker than Java at the time. Applet development, servelet development, and JavaFX development are all special capabilities that may be accomplished with Java.

Java is also very significant in the development of software for the Android operating system, which is currently the most popular mobile operating system in the entire world. Java is one of the best programming languages that can be used for a variety of purposes and is currently the one that is used the most for developing websites.

Difference between Groovy and Java

The following table highlights the major differences between Groovy and Java −

Basis of comparisonGroovyJava
Release DateOn January 2, 2007, James Strachan released the initial version of the Groovy programming language.Sun Microsystems was the first to release it in May 1995.
main( ) MethodGroovy programming does not require the creation of a main( ) method.Java requires the creation of a main( ) method in order to execute programmes.
Getters and SettersThe use of getters and setters by class members is handled by an automatic generation process.It is necessary to offer getters and setters in an explicit manner.
FormatsWhen creating further statements, the use of semicolons is not required.Semicolons are required at the end of each statement and before beginning a new one.
Type of LanguageIt is a language that may be used for both programming and scripting.Only a programming language can be written in this format.
MethodsMethods are selected at the time of compilation.Methods are selected at run-time.


Java was the most extensively used programming language, and it is the parent language of a great many other notable programming languages used in software development. Groovy is a programming language that was created by using Java as its foundation and incorporating aspects of a number of other languages while continuing to operate on the Java platform.

Updated on: 25-Jul-2022


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