jjs(1)                            Basic Tools                           jjs(1)

NAME
       jjs - Invokes the Nashorn engine.

SYNOPSIS
           jjs [options] [script-files] [-- arguments]

       options
           One or more options of the jjs command, separated by spaces. For
           more information, see Options.

       script-files
           One or more script files which you want to interpret using Nashorn,
           separated by spaces. If no files are specified, an interactive
           shell is started.

       arguments
           All values after the double hyphen marker (--) are passed through
           to the script or the interactive shell as arguments. These values
           can be accessed by using the arguments property (see Example 3).

DESCRIPTION
       The jjs command-line tool is used to invoke the Nashorn engine. You can
       use it to interpret one or several script files, or to run an
       interactive shell.

OPTIONS
       The options of the jjs command control the conditions under which
       scripts are interpreted by Nashorn.

       -cp path
       -classpath path
           Specifies the path to the supporting class files To set multiple
           paths, the option can be repeated, or you can separate each path
           with a colon (:).

       -Dname=value
           Sets a system property to be passed to the script by assigning a
           value to a property name. The following example shows how to invoke
           Nashorn in interactive mode and assign myValue to the property
           named myKey:

               >> jjs -DmyKey=myValue
               jjs> java.lang.System.getProperty("myKey")
               myValue
               jjs>

           This option can be repeated to set multiple properties.

       -doe
       --dump-on-error
           Provides a full stack trace when an error occurs. By default, only
           a brief error message is printed.

       -fv
       --fullversion
           Prints the full Nashorn version string.

       -fx
           Launches the script as a JavaFX application.

       -h
       -help
           Prints the list of options and their descriptions.

       --language=[es5]
           Specifies the ECMAScript language version. The default version is
           ES5.

       -ot
       --optimistic-types=[true|false]
           Enables or disables optimistic type assumptions with deoptimizing
           recompilation. Running with optimistic types will yield higher
           final speed, but may increase warmup time.

       -scripting
           Enables shell scripting features.

       -strict
           Enables strict mode, which enforces stronger adherence to the
           standard (ECMAScript Edition 5.1), making it easier to detect
           common coding errors.

       -t=zone
       -timezone=zone
           Sets the specified time zone for script execution. It overrides the
           time zone set in the OS and used by the Date object.

       -v
       -version
           Prints the Nashorn version string.

EXAMPLES
       Example 1 Running a Script with Nashorn

               jjs script.js


       Example 2 Running Nashorn in Interactive Mode

               >> jjs
               jjs> println("Hello, World!")
               Hello, World!
               jjs> quit()
               >>


       Example 3 Passing Arguments to Nashorn

               >> jjs -- a b c
               jjs> arguments.join(", ")
               a, b, c
               jjs>


SEE ALSO
       jrunscript

JDK 8                            03 March 2015                          jjs(1)