calling java from javascript

Publicado el: 19 junio 2024
en el canal de: CodeFix
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to call java code from javascript, you can utilize java's `javax.script` package, which allows for scripting and integrating java code with other scripting languages like javascript. here's a step-by-step tutorial on how to achieve this:

1. *write a java class* - first, create a java class with a method that you want to call from javascript. for example, let's create a simple `calculator` class with an `add` method.



2. *instantiate and bind the java object* - in your javascript code, you need to instantiate the java object and bind it to the javascript engine.



3. *invoke java method from javascript* - now, you can call the java method from your javascript code.



4. *run the javascript code with java* - to run your javascript code that calls java methods, you can use the `scriptengine` class from the `javax.script` package.



5. *compile and run the java code* - compile your java code and run it. make sure the `calculator` class and the javascript code are accessible.

6. *output* - when you run the java code, it will execute the javascript code that calls the java method and prints the result.

this tutorial outlines the process of calling java code from javascript using the `javax.script` package. make sure to adjust the class names and method names according to your specific requirements.

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