Esempio per estrazione file da jar:
codice:import java.lang.*; import java.io.*; import java.net.*; public class EstrazioneDaJar { public static void main (String[] args) { try { URL url = EstrazioneDaJar.class.getResource ("path/immagine.jpg"); InputStream is = url.openStream (); FileOutputStream fos = new FileOutputStream (new File ("estratto.jpg")); byte[] buff = new byte[512]; int count; while ((count = is.read (buff)) > 0) fos.write (buff, 0, count); is.close (); fos.close (); } catch (Exception e) { e.printStackTrace (); } } }

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