|
| 1 | +--- |
| 2 | +layout: post |
| 3 | +title: "Hello World In Groovy" |
| 4 | +author: gaurav |
| 5 | +image: assets/images/2020-12-31/groovy-logo.png |
| 6 | +categories: [ Groovy] |
| 7 | +description: "In this article you will say 'Hello' to Groovy. We will see the installation and 'the' most important 'Hello World!' program." |
| 8 | +featured: false |
| 9 | +--- |
| 10 | +In this article, you will say 'Hello' to Groovy. We will see the installation and 'the' most important "Hello World!" program. 🙂 |
| 11 | + |
| 12 | +Apache Groovy is a **powerful**, **optionally typed**, and **dynamic** language. It integrates smoothly with any Java program. |
| 13 | + |
| 14 | +## How To Install Groovy? |
| 15 | + |
| 16 | +There are many ways you can [download and Install Groovy](https://groovy.apache.org/download.html). |
| 17 | + |
| 18 | +On this day, Groovy 3.0 is the latest stable version of Groovy designed for JDK8+. |
| 19 | + |
| 20 | +Currently, I am using Windows so we will be using a Windows installer, which is a community artifact. |
| 21 | + |
| 22 | +Here is a [link for Windows Installer for Groovy 3.0.7](https://bintray.com/groovy/Distributions/download_file?file_path=groovy-3.0.7.msi). |
| 23 | + |
| 24 | +Once you download the .msi file ( i.e. installer) simply double click on it and you will see the installation screen. |
| 25 | + |
| 26 | + |
| 27 | + |
| 28 | +The installation is pretty simple and straight-forward. Click on next and go with the default setting. |
| 29 | + |
| 30 | +**Note:** If you are **using Mac OS** and you have Homebrew, you can install Groovy by the following command. |
| 31 | + |
| 32 | +``` |
| 33 | +brew install groovy |
| 34 | +``` |
| 35 | + |
| 36 | +Refer to the [official installation guide](https://groovy-lang.org/install.html) for more information. |
| 37 | + |
| 38 | +Once you are done with the installation, you can search for the Groovy Console from your start menu. And finally, you are ready to write your first "Hello World!" program. |
| 39 | + |
| 40 | + |
| 41 | + |
| 42 | + |
| 43 | +## Hello World In Groovy |
| 44 | + |
| 45 | +Groovy is a JVM-based language. If you have used Java before you know [how we create a class, then method and write our print statement in it](https://youtu.be/P_r4QFLxBsQ). |
| 46 | + |
| 47 | +Things are pretty much different here. |
| 48 | + |
| 49 | +You can simply write the print statement with your "Hello World!" string and it will get printed on the console. |
| 50 | + |
| 51 | +So let's try. |
| 52 | + |
| 53 | +Open your Groovy Console. Add the following statement to it. |
| 54 | + |
| 55 | +```groovy |
| 56 | +println "Hello World!" |
| 57 | +``` |
| 58 | + |
| 59 | + |
| 60 | +To run your program right click on the console and choose the 'Run' option. |
| 61 | + |
| 62 | +You can also use the shortcut `Ctrl+R` to run any groovy program. |
| 63 | + |
| 64 | +Boom!! 🎉 |
| 65 | + |
| 66 | +You can see the string "Hello World!" is printed on the console. |
| 67 | + |
| 68 | + |
| 69 | + |
| 70 | +So you have successfully written your first groovy program. |
| 71 | + |
| 72 | +That's it for now. |
| 73 | + |
| 74 | +You can visit my [YouTube channel 'coderolls'](https://www.youtube.com/channel/UCl31HHUdQbSHOQfc9L-wo3w?view_as=subscriber?sub_confirmation=1) to find more video tutorials. |
| 75 | + |
| 76 | +-------------- |
| 77 | + |
| 78 | +You can support me by [giving a cup of Coffee ☕](https://www.paypal.me/GauravKukade) |
| 79 | + |
| 80 | +#### Related Articles |
| 81 | + |
| 82 | +- [8 Basic GIT Commands Every Newbie Developer Must Know](https://coderolls.com/basic-git-commands/) |
| 83 | +- [How To Reverse A String In Java (5 ways)](https://coderolls.com/reverse-a-string-in-java/) |
| 84 | +- [How To Create UUID in Java?](https://coderolls.com/create-uuid-in-java/) |
| 85 | +- [Learn About Java String Pool And intern() Method](https://coderolls.com/java-string-pool-and-intern-method/) |
| 86 | +- [How Do I Compare Strings In Java](https://coderolls.com/compare-strings-in-java/) |
| 87 | +- [Compare Two Strings Lexicographically In Java](https://coderolls.com/compare-two-strings-lexicographically-in-java/) |
| 88 | +- [Difference Between StringBuffer and StringBuilder class](https://coderolls.com/difference-between-stringbuffer-and-stringbuilder/) |
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