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    public static void main(String[] args) {
        FileCopier.copyFile(new File("D:/TEMP/test1.css"), 
                            new File("D:/TEMP/test2.css"));
    }

import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
 
public class FileCopier {
 
    /**
     * Testing Method
     * @param args
     */
    public static void main(String[] args) {
        FileCopier.copyFile(new File("D:/TEMP/test1.css"), 
                            new File("D:/TEMP/test2.css"));
    }
 
    /**
     * Copy content of file f1 into file f2
     * @param f1
     * @param f2
     */
    public static void copyFile(File f1, File f2) {
        try {
            FileReader in = new FileReader(f1);
            FileWriter out = new FileWriter(f2);
            int line;
            while ((line = in.read()) != -1) {
                // Read line fromtext file and write to destination file
                out.write(line);
            }
            in.close();
            out.close();
 
        } catch (FileNotFoundException ffx) {
            ffx.printStackTrace();
        } catch (IOException iox) {
            iox.printStackTrace();
        }
    }
 
}