import java.io.*;

class FileOutputDemo {

    static public void main(String args[]) throws IOException {
        DataOutputStream stream;

        try {
            stream = new DataOutputStream(new FileOutputStream("myfile"));    

            stream.writeInt(args.length);
            for(int i = 0; i < args.length; i++)
                stream.writeUTF(args[i]);
        }
        finally {
            stream.close();
        }
    }
}

import java.io.*;

class FileInputDemo {

    static public void main(String args[]) throws IOException {
        Strimg arg = "";
        int num;
        DataInputStream stream;

        try {
            stream = new DataInputStream(new FileInputStream("myfile"));      

            num = stream.readInt();
            while (num > 0) {
                arg = stream.readUTF();
                System.out.println(arg);
                num--;
            }
        }
        finally {
            stream.close();
        }
    }
}