question: public static void copyFile ( final File fromFile , final File toFile ) throws UncheckedIOException { InputStream from = null ; OutputStream to = null ; try { from = new FileInputStream ( fromFile ) ; to = new FileOutputStream ( toFile ) ; copyStream ( from , to ) ; } catch ( IOException e ) { throw new UncheckedIOException ( e ) ; } finally { if ( from != null ) { try { from . close ( ) ; } catch ( IOException ignored ) { ignored . printStackTrace ( ) ; } } if ( to != null ) { try { to . close ( ) ; } catch ( IOException ignored ) { ignored . printStackTrace ( ) ; } } } }
target:  Copies the file content from one file to the other file.