Stuff

import java.io.DataInputStream;
import java.io.DataOutputStream;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.io.IOException;


public class Writebin {

  public static void main(String[] argv) throws IOException {
    int i = 42;
    String foo = "Hello";

    String FILENAME = "binary.txt";
    DataOutputStream os = new DataOutputStream(new FileOutputStream(FILENAME));
    os.writeInt(i);
    os.writeUTF(foo);
    os.close();

    DataInputStream di = new DataInputStream(new FileInputStream (FILENAME));
    System.out.println(di.readInt());
    System.out.println(di.readUTF());
    di.close();
  }
}