Writing to file without spaces!

Question

Hiya :)
I am relatively new (ok, very new :) to Java programming.
I have had my first attempt at creating a program that can create a new file, and then write to it.
The problem is that when I try to write the string "Happy!", It writes " H a p p y !" (with spaces).
Could someone please tell me
a) Why does it do this?
b) Is there any advantage for it to do this?
c) How can I stop this from happening?
d) Is there a better way to write to a file?
Here is the code:
import java.io.*;
public class writer
     public static void main(String args[])
          File outf = new File("blah.txt");
          try
               DataOutputStream out = new DataOutputStream(new FileOutputStream(outf));
               try
                    out.writeChars("Happy!");
                    System.out.println(""+out.size());
                    out.flush();
               catch(IOException ioex)
                    System.out.println("Error - writeChars");
          catch(FileNotFoundException ex)
               System.out.println("Error - DataOutputStream");
Ok, thanks in advance to anyonewho can answer my question :)
NightCabbage

Answer 1

Try this
import java.io.*;
public class writer
public static void main(String args[])
File outf = new File("blah.txt");
try
PrintWriter out = new PrintWriter(new BufferedWriter( new FileWriter (outf)));  
try
out.println("Happy!");
out.flush();
out.close();
catch(IOException ioex)
System.out.println("Error - writeChars");
catch(FileNotFoundException ex)
System.out.println("Error - DataOutputStream");
}