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Tomer Ben David
Tomer Ben David

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JBang: Java Development, Uncomplicated!

Unleash the Flavor of Simplicity: JBang for Effortless Java Development

Remember the days of Java development being synonymous with tangled setups and dependency nightmares? Those days are over! Buckle up for JBang, the innovative tool that brings simplicity, speed, and portability to your Java coding journey.

Think of it like this: you're whipping up a delicious meal. Traditional Java development is like meticulously preparing every ingredient from scratch, meticulously measuring everything, and hoping it all comes together perfectly. JBang, on the other hand, is like having a pre-made sauce simmering on the stove. You simply add your unique ingredients, stir it up, and voila! You have a fantastic dish ready to share in no time.

Here's how JBang transforms your Java experience:

  • JDK? Not Required: JBang packs a mini Java runtime within your application, eliminating the need for users to have a specific JDK installed. It's like having a portable stovetop that works anywhere, anytime.


// Hello world, JBang style!

public class HelloWorld {

  public static void main(String[] args) {
    System.out.println("Hello, world!");
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Save this as and run it with jbang No JDK installation needed!

  • Setup? So Easy: Forget lengthy configurations and complex build tools. With JBang, simply write your code, save it as a script, and run it with jbang. No more wrestling with cryptic commands or endless configurations.


// A simple script to greet someone by name

import java.util.Scanner;

public class NameGreeter {

  public static void main(String[] args) {
    Scanner scanner = new Scanner(;
    System.out.print("What is your name? ");
    String name = scanner.nextLine();
    System.out.println("Hello, " + name + "!");
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Save this as and run it with jbang John. You'll be greeted by name instantly!

  • Dependency Ninja: Declare your dependencies directly within your code using intuitive annotations, and JBang takes care of downloading and managing them like a pro. It's like having a personal assistant who ensures you have all the right ingredients for your recipe.


//DEPS com.fasterxml.jackson.core:jackson-core:2.13.3

public class JsonParser {

  public static void main(String[] args) throws IOException {
    ObjectMapper mapper = new ObjectMapper();
    Map<String, String> data = mapper.readValue(new File("data.json"), Map.class);
    System.out.println("Your name is: " + data.get("name"));
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Declare your Jackson dependency with the DEPS annotation and JBang takes care of downloading it for you.

But hold on: JBang is still under development, so some features might not be as mature as established tools. And for highly intricate, enterprise-level projects, you might still need tools like Maven or Gradle.

However, for simpler Java development, JBang is a game-changer. It's perfect for:

  • New Learners: Get started with Java quickly and easily, focusing on your code instead of getting bogged down in complexities.
  • Experienced Developers: Boost your productivity by streamlining development workflows for small projects, especially personal ones or side hustles.
  • Teams: Collaborate effortlessly by sharing portable, self-contained Java applications.

So, ditch the complexity and join the JBang revolution! It's time to experience Java development the way it should be: simple, fast, and fun! Start creating delicious, portable Java applications that you can share with the world. Remember, even the simplest dish can be a masterpiece with the right tools and a dash of creativity.

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