Java Snippet – Fast File Copy

posted by Michael Cutler on May 17, 2005 @ 22:43

Categories: Java

When using JDK 1.4 and above...

PLAIN TEXT
JAVA:
  1. public static void copyFile(File in, File out) {
  2.     try {
  3.         FileChannel sourceChannel = new FileInputStream(in).getChannel();
  4.         FileChannel destinationChannel = new FileOutputStream(out).getChannel();
  5.         sourceChannel.transferTo(0, sourceChannel.size(), destinationChannel);
  6.         // or, you can also copy it this way
  7.         // destinationChannel.transferFrom(sourceChannel, 0, sourceChannel.size());
  8.         sourceChannel.close();
  9.         destinationChannel.close();
  10.     } catch ( Exception e ) {
  11.         e.printStackTrace();
  12.     }
  13. }

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