import java.io.*;

public class BinaryIOTest{ 
    public static void main(String[] args){
	double d;
	int i;
	boolean b;
	String s;
	try{
	   DataOutputStream out = new DataOutputStream(
	                            new BufferedOutputStream(
		  					      new FileOutputStream("file")));
		out.writeDouble(3.14);
		out.writeInt(17);
		out.writeBoolean(true);
		out.writeUTF("This is a string.");
		out.close();
		System.out.println("Successful output.");
	   
	   DataInputStream in = new DataInputStream(
	                           new BufferedInputStream(
		  					     new FileInputStream("file")));
		d = in.readDouble();
		i = in.readInt();
		b = in.readBoolean();
		s = in.readUTF();
		in.close();
		System.out.println("Read:\n" + d + "\n" + i + "\n" + b + "\n" + s);	  
	}catch (FileNotFoundException e)
	{ System.err.println(e.getMessage());}
	catch (IOException e)
	{ System.err.println(e.getMessage());}
  }
}