Mega Code Archive

 

Categories / Java / File Input Output

 

Performs a straightforward copy operation

import java.io.FileInputStream; import java.io.FileOutputStream; import java.nio.channels.FileChannel; public class Copy {   public static void main(String[] args) {     FileChannel in = null;     FileChannel out = null;     if (args.length < 2) {       System.out.println("Usage: java Copy <from> <to>");       System.exit(1);     }     try {       in = new FileInputStream(args[0]).getChannel();       out = new FileOutputStream(args[1]).getChannel();       out.transferFrom(in, 0L, (int) in.size());     } catch (Exception e) {       e.printStackTrace();     }   } }