Sounds like a school project.
The bad news for you is that there are not many sample codes around. Seems like you haven't taken a close look anyway or you would have run into some third party java speech api implementations.
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Raditha Dissanayake
<a href="http://www.radinks.com/sftp">http://www.radinks.com/sftp</a>
Lean and mean sftp applet with GUI.