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import java.nio.*;   
import java.nio.channel.*;   
import java.io.*;   
public static void copy(File source, File dest) throws IOException {   
 FileChannel in = null, out = null;   
 try {    
  in = new FileInputStream(source).getChannel();   
  out = new FileOutputStream(dest).getChannel();   
    
  long size = in.size();   
  MappedByteBuffer buf = in.map(FileChannel.MapMode.READ_ONLY, 0, size);   
    
  out.write(buf);   
  if (in != null) in.close();   
  if (out != null) out.close();   
 }   
}  
import java.nio.*; import java.nio.channel.*; import java.io.*; public static void copy(File source, File dest) throws IOException { FileChannel in = null, out = null; try { in = new FileInputStream(source).getChannel(); out = new FileOutputStream(dest).getChannel(); long size = in.size(); MappedByteBuffer buf = in.map(FileChannel.MapMode.READ_ONLY, 0, size); out.write(buf); if (in != null) in.close(); if (out != null) out.close(); } }
 
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