Use jrunscript to execute JavaScript scripts : Script Engines « Development « Java Tutorial

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Java Tutorial » Development » Script Engines

6. 42. 17. Use jrunscript to execute JavaScript scripts

You can use jrunscript in interactive or batch mode to execute scripts.

In interactive mode, you can type and execute scripts from the jrunscript prompt.

In batch mode, you can load and execute script files using jrunscript.

By default, jrunscript executes scripts developed using the JavaScript scripting language.

To specify a different language, you can use the �l option while executing jrunscript.

jrunscript [options]

Option	Description
-classpath path	Specifies the path to the Java class files.
-l language	Specifies the scripting language.
-e script	Evaluates the given script.
-encoding encoding	Specifies the character encoding used while reading script files.
-f script-file	Evaluates a script file.
-f	Reads and evaluates a script from the console. This is called interactive mode.
-q	Lists all available script engines.

jrunscript -e "print('hello world')"

6. 42. Script Engines
	6. 42. 1.	Listing All Script Engines
	6. 42. 2.	List the script engines
	6. 42. 3.	Running Scripts with Java Script Engine
	6. 42. 4.	Execute Javascript script in a file
	6. 42. 5.	Variables bound through ScriptEngine
	6. 42. 6.	Catch ScriptException
	6. 42. 7.	Any script have to be compiled into intermediate code.
	6. 42. 8.	With Compilable interface you store the intermediate code of an entire script
	6. 42. 9.	Run JavaScript and get the result by using Java
	6. 42. 10.	Pass parameter to JavaScript through Java code
	6. 42. 11.	Get the value in JavaScript from Java Code by reference the variable name
	6. 42. 12.	Working with Compilable Scripts
	6. 42. 13.	Call a JavaScript function three times
	6. 42. 14.	Save the compiled JavaScript to CompiledScript object
	6. 42. 15.	Invoke an function
	6. 42. 16.	Using thread to run JavaScript by Java
	6. 42. 17.	Use jrunscript to execute JavaScript scripts
	6. 42. 18.	Get Script engine by extension name
	6. 42. 19.	Get a ScriptEngine by MIME type
	6. 42. 20.	Retrieving Script Engines by Name
	6. 42. 21.	Retrieving the Metadata of Script Engines
	6. 42. 22.	Retrieving the Supported File Extensions of a Scripting Engine
	6. 42. 23.	Retrieving the Supported Mime Types of a Scripting Engine
	6. 42. 24.	Retrieving the Registered Name of a Scripting Engine
	6. 42. 25.	Executing Scripts from Java Programs
	6. 42. 26.	Read and execute a script source file
	6. 42. 27.	Using Java Objects in JavaScript
	6. 42. 28.	Java Language Binding with JavaScript

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