PrintWriter - not writing correctly

martin_cork_irl

Hi,

I'm having an issue with trying to write a String[] to a .txt file using PrintWriter

I have a string, and when I println it to the console it comes up grand, but when I write it to the .txt file it just comes up like '[Ljava.lang.String;@42e95cbf' or something . I've tried writing other Strings to the .txt file it works fine, but I just cannot write this particular string

  String[] lines = markov.generateSentences(3);

  RiText.createLines(this, lines, 50, 50, 400, 400);

  println(lines); //this prints to the console file
  output.println("im trying to print the string lines to the output txt file " + lines);
  output.flush();
  output.close();

However, in my .txt file I'm getting this:

im trying to print the string lines to the output txt file [Ljava.lang.String;@6c029886

I assume that it has something to do with the [] part of the string 'lines'.

Any ideas? As to what the issue is?

GoToLoop

Processing's own println() knows how to extract information from arrays.
Also it automatically invokes toString() when dealing w/ other objects.

What you can do is manually iterate over the array:

final String[] lines = { "print","me","now!" };
for (String s: lines)  println(s);
exit();

martin_cork_irl

Hi,

That worked perfectly. I'll have to look up the toString() method.

Thanks very much for your help :)

GoToLoop

All objects have method toString()! But we have to override it w/ something meaningful! :ar!

martin_cork_irl

Oh man. I have a lot to learn!