<div>
<blockquote>
a set of files
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Please expand. Ordinarily web apps support only one file at a time, though there are workarounds.
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<div class="content wysiwyg-content">
I need to incorporate into an existing website the ability for users to compress and upload a set of files from their system via drag and drop. <br />
<br />
I am not a java or php developer so I need your assistance.
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I need to incorporate into an existing website the ability for users to compress and upload a set of files from their system via drag and drop. 

I am not a java or php developer so I need your assistance.

sample app which zips and loads needed

Java is a platform-independent, object-oriented programming language and run-time environment, designed to have as few implementation dependencies as possible such that developers can write one set of code across all platforms using libraries. Most devices will not run Java natively, and require a run-time component to be installed in order to execute a Java program.

Java

Web development includes all aspects of presenting content on intranets and the Internet, including delivery development, protocols, languages and standards, server software, browser clients, databases and multimedia generation.

Web Development

Web applications are systems that run in browsers that perform functions normally associated with other client-based programs. One of the most commonly used web applications is email; instead of downloading individual emails to a local machine, the data is shown through a website. Other examples of web applications are collaborative systems like a wiki or an online game.