29.5. Calling Java from JavaScript

Try these first

1. 1.

   What is Nashorn?

   Hint

   Think about it as a bridge between Java and JavaScript.

2. 2.

   How do you create a Java object in JavaScript using Nashorn?

   Hint

   Recall the syntax we discussed in class.

3. 3.

   What is the primary function of the Nashorn engine?

   • To compile Java
   • To execute JavaScript in Java
   • To run Python scripts

   Hint

   Focus on the primary purpose of Nashorn.

4. 4.

   True or False: Nashorn supports calling Java methods from JavaScript.

   • True
   • False

   Hint

   Consider the integration capabilities of Nashorn.

5. 5.

   Create a Nashorn script that dynamically creates and manages a directory with multiple text files, implementing functionality to list the files in the directory.

   Hint

   Consider how to check for a directory's existence and create files within it.

6. 6.

   Build a Nashorn script that accepts user input to create a customized greeting. It should leverage Java's Scanner class, and take the user's name as input.

   Hint

   Look to import necessary Java classes for input handling.