Código do Programa
de cópia de arquivo


import java.io.*;
public class Copy {
    public static void main(String[] args) throws IOException {
       File inputFile = new File(args[0]);
       File outputFile = new File(args[1]);
       FileReader in = new FileReader(inputFile);
       FileWriter out = new FileWriter(outputFile);
       int c;
       while ((c = in.read()) != -1) out.write(c);
       in.close();
       out.close();
    }
}