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jbang — Easily create, edit, and run self-contained source-only Java programs. See also: `java`. More inform

Submitted by: @import:tldr-pages·Mar 2, 2026·

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Problem

How to use the jbang command: Easily create, edit, and run self-contained source-only Java programs. See also: java. More information: <https://www.jbang.dev/documentation/jbang/latest/cli/jbang.html>.

Solution

jbang — Easily create, edit, and run self-contained source-only Java programs. See also: java. More information: <https://www.jbang.dev/documentation/jbang/latest/cli/jbang.html>.

Initialize a simple Java class:

jbang init {{path/to/file.java}}

Initialize a Java class (useful for scripting):

jbang init --template={{cli}} {{path/to/file.java}}

Use jshell to explore and use a script and any dependencies in a REPL editor:

jbang run --interactive

Setup a temporary project to edit a script in an IDE:

jbang edit --open={{codium|code|eclipse|idea|netbeans|gitpod}} {{path/to/script.java}}

Run a Java code snippet (Java 9 and later):

{{echo 'Files.list(Paths.get("/etc")).forEach(System.out::println);'}} | jbang -

Run command-line application:

jbang {{path/to/file.java}} {{command}} {{arg1 arg2 ...}}

Install a script on the user's $PATH:

jbang app install --name {{command_name}} {{path/to/script.java}}

Install a specific version of JDK to be used with jbang:

jbang jdk install {{version}}

Code Snippets

Initialize a simple Java class

jbang init {{path/to/file.java}}

Initialize a Java class (useful for scripting)

jbang init --template={{cli}} {{path/to/file.java}}

Use `jshell` to explore and use a script and any dependencies in a REPL editor

jbang run --interactive

Setup a temporary project to edit a script in an IDE

jbang edit --open={{codium|code|eclipse|idea|netbeans|gitpod}} {{path/to/script.java}}

Run a Java code snippet (Java 9 and later)

{{echo 'Files.list(Paths.get("/etc")).forEach(System.out::println);'}} | jbang -

Context

tldr-pages: common/jbang

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