import java.io.FileReader;
import java.io.BufferedReader;
import java.io.FileWriter;
import java.io.PrintWriter;
import java.io.IOException;
import java.io.FileNotFoundException;
import java.util.StringTokenizer;
public class ReadWriteFileAsTokens
{
    public static void main(String[] args)
                        throws IOException
    {
        // Initializations
        FileReader reader = null;
        FileWriter writer = null;
        String inFileName = "TokensIn.txt";
        String outFileName = "TokensOut.txt";
        // Open input and output files
        try
        {
            reader = new FileReader(inFileName);
            writer = new FileWriter(outFileName);
        }
        catch(FileNotFoundException e)
        {
            System.err.println("Cannot find input file ");
            System.exit(1); // abnormal termination status code
        }
        catch(IOException e)
        {
            System.err.println("Cannot open input/output file ");
            System.exit(2);
        }
        // Set up to read a line and write a line
        BufferedReader in = new BufferedReader(reader);
        PrintWriter out = new PrintWriter(writer);
        // Read a line from one file and write to the other
        out.println("Copied file is:");
        boolean done = false;
        while(!done)
        {
            String inputLine = in.readLine();
            if(inputLine == null)
                done = true;
            else
            {
                StringTokenizer tokenizer = new StringTokenizer(inputLine, " ");
                while( tokenizer.hasMoreElements() )
                    out.println( (String)tokenizer.nextElement() );
            }
        }
        // end of input 
        // initialize a tokenizer and attach it to a line
        // Close files
        try
        {
            in.close();
        }
        catch(IOException e)
        {
            System.err.println("Error closing file.");
        }
        finally
        {
            out.close();
        }
    }
}