Garbage when create a new txt file

Question

I'm creating a text file but when a check the file it contain
some garbage...
salida = new DataOutputStream (new FileOutputStream ("client.txt"));      
salida.writeUTF("Hello");
salida.writeUTF("my");
salida.writeUTF("world");
but when i check the file it contain:
Hello my wold
i don't know why appear this caracter
     

Answer 1

This behaviour is normal, the fact that you are using DataOutputStream to write the data to the file means that you want the Java Primitive datatypes to be written in the file for reading the way they are in future.
If you use DataInputStream rather than notepad to read this data you will find that the data is fine.
If you want to make a file human readable and are going to write text to it, might as well use the FileOutputStream.
Cheers.