nullPointerException when trying loadTable()

joaomeirelles

Hello,

I'm getting a nullPointExeption when trying to loadTable. here is my code.

    String twitterFile = "output2.csv"; 
    String twitterDataFile = twitterFile;

    ArrayList<Twitter> tweets = new ArrayList();

    void setup() {
      size(1000, 600, P2D);
      smooth();
      Table twitterCSV = loadTable(twitterDataFile, "header, csv");
    }

Any ideia on what could it be?

thanks a lot

GoToLoop

• Is "output2.csv" inside sketch's dataPath("")?
• Does "output2.csv" really got a "header"?
• If "output2.csv" indeed got values separated by comma, no need to specify "cvs" in option parameter.

http://processing.org/reference/loadTable_.html

http://forum.processing.org/two/discussion/5765/like-dictionary
http://forum.processing.org/two/discussion/6668/how-to-convert-a-csv-file-into-arrays-one-1d-and-one-2d

koogs

You have a scope problem - you've defined your table in setup () and won't, as it stands, be able to use it outside of there.

But a null pointer on load usually means a missing file, as gotoloop explains.

joaomeirelles

@GoToLoop. The header was misslocated inside my csv, Thank you!! dummie mistake.

@Koog. I just posted a part of my code. thanks anyway