Analyzing JBang Usage on Windows based on provided documentation

This analysis aims to provide a comprehensive understanding of using JBang on Windows, drawing information from the provided documentation.

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• _____ JBang makes running Java code as easy as scripting languages, requiring minimal setup.
• _____ Supports both .java files with a main method and .jsh files for direct JShell execution.
• _____ Downloads and manages the appropriate JDK version if not found in the system.
• _____ Scripts can be run directly (after making them executable) or via the jbang command.
• _____ Run scripts directly from URLs (with security precautions) or pass code snippets via command line or standard input.
• _____ Build self-contained executables using GraalVM’s native-image.
• _____ Run Kotlin (.kt), Groovy (.groovy), and even extract & run Java/JShell code from Markdown (.md) files.

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1. _____
   • _____ A simple class with a static void main method, just like traditional Java applications.
   • _____ Leverage JShell, allowing for code execution without the need for a class or main method.
2. _____
   • _____ Mark the script file as executable (chmod +x script.java on Linux/macOS/AIX) and run it directly.
   • _____ Execute the script by typing jbang script.java.
3. _____
   • _____ If a compatible JDK is not found on the system path, JBang automatically downloads and uses JDK 11 by default.
   • _____ Override the default JDK version using the JBANG_DEFAULT_JAVA_VERSION environment variable.
   • _____ Control the JDK vendor (e.g., temurin, aoj, azul) using the JBANG_JDK_VENDOR environment variable.
4. _____
   • _____ Run a script directly from a URL using jbang https://example.com/script.java.
   • _____ For security, JBang prompts for confirmation before running scripts from untrusted URLs.
     • _____ Add trusted URLs or domains using jbang trust add <URL>.
   • _____ JBang intelligently extracts source code from popular platforms like GitHub, GitLab, and Bitbucket.
5. _____
   • _____ Create native executables with jbang --native script.java. This requires GraalVM to be installed and accessible.
   • _____ JBang offers experimental support for running Kotlin (.kt), Groovy (.groovy), and even extracting and running Java/JShell code blocks from Markdown (.md) files.

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The provided PowerShell script (jbang.ps1) highlights crucial aspects of using JBang on Windows:

• _____ The script enforces using PowerShell version 5 or later for compatibility.
• _____ Ensures appropriate execution policy settings for running scripts.
• _____ Requires .NET Framework 4.5 or later for TLS 1.2 support.
• _____ While not mandatory, enabling Windows Developer Mode is recommended for optimal JBang functionality.
• _____ The script downloads and installs a suitable JDK if not found, utilizing Foojay API for JDK discovery.
• _____ If JBang is not present, the script automatically downloads and installs it.

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JBang significantly streamlines Java development, especially for scripting and small-scale projects. Its ease of use, automatic dependency management, and support for running code from various sources make it a powerful tool for Java developers.