title: How to get video and audio streams from web cameras with Java?
body: <p>How can I get video and audio streams from web cameras with Java (in a cross-platform way)?</p>
  
  <p>For example, we have a computer with 3-4 USB web cameras; we want to get their streams and make them visible in the user interface. How can we perform such a thing? I need code for a simple app which would find ALL cameras on the computer and let us select camera to wach. Can any one, please share such one?</p>