How are HSSFHyperlink and URL fragment encoding related?

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HSSFHyperlink and URL fragment encoding are related in the sense that the HSSFHyperlink class in Apache POI allows creating hyperlinks in Excel files. These hyperlinks can link to web pages or specific parts of a web page using URL fragments.

URL fragment encoding is a way of encoding a specific portion of a web page's content by appending a "#" followed by the ID or name of the element to the URL. For example, "http://example.com/page.html#section1" would link to the section with the ID "section1" on the "page.html" webpage.

When creating a hyperlink in an Excel file using the HSSFHyperlink class, you can specify the URL of the webpage or the URL with a fragment identifier. By using URL fragment encoding, you can link to a specific section of a web page from within an Excel file.