Modify the existing Javascript code to be able to be called from Java

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Project Budget (USD)
$10 - $30

Project Description:
Could you help me with college Java/Javascript project, please?

This could be very simple project for somebody who knows Javascript and Java programming language properly.

Modify the existing Javascript/webpage code located in the link below to be able to be called from Java programming language via simple functions and or via classes.

The link which functionality should be called from Java.

The whole webpage can be downloaded from here.

Skills required:
HTML, Java, Javascript
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