How can I use Java to programmaticaly convert an Internal Stylesheet of a web-page to an inline one?

Question

Is there a ready-made tool or utility that does that already

Answer 1

You could just open the CSS file and just embed its content into a style tag.

It should not be that hard:

FileReader frCSS = new FileReader("your_css.css");
FileReader frHTML = new FileReader("your_html.html");
FileWriter output = new FileWriter("result.html");

Then parse frHTML and copy its content to output until you find the head opening tag. When you do, open a style tag and copy all contents from frCSS. Then, close the style tag and copy the remaining portion of frHTML.

It's not pretty, but it can be done.