Can a table be created (a csv file) from out of a class instead out of "void setup()" ?

Magnetic_Garden

Nothing seems to be written when I look at the csv file in question, no columns are created. But I see no error messages either.

KevinWorkman

I'm not sure what your question means. Can you post an MCVE that demonstrates what you're talking about?

Magnetic_Garden

Sure!

CSVPreparation InsTCSVPreparation = new CSVPreparation(0);

void setup()
{
InsTCSVPreparation.StartCSV ();
}

class CSVPreparation
{
int val;
CSVPreparation( int tempval )
{val = tempval;}

void StartCSV ()
{

storeData = new Table(); 

storeData.addColumn("A");
storeData.addColumn("B")

storeData.setString( 1, "A",  "Kether");  
storeData.setString( 1, "B", "Binnah");  
}// f
}// C

KevinWorkman

Word to the wise: you should try to use standard naming conventions: variables and methods should start with lower-case letters.

Does this code work? What do you expect it to do? What does it do instead? I'm still not sure what your question is...

Magnetic_Garden

It should write a CSV file, thats all. But it doesn't.

KevinWorkman

Where is your storeData variable declared? Does this code compile?

GoToLoop

Define a class to merely create a Table is a little too much.
A simpler createCSV() util function is enough IMO: (*)

http://forum.processing.org/two/discussion/2801/picking-cards-at-random-then-excluding-those-from-further-picking-

// forum.processing.org/two/discussion/7733/
// can-a-table-be-created-a-csv-file-
// from-out-of-a-class-instead-out-of-void-setup-

final Table table = createCSV();

void setup() {
  printTable(table);
  saveTable(table, dataPath("MyTable.csv"));
  exit();
}

static final Table createCSV() {
  Table t = new Table();

  //t.addColumn("A");
  //t.addColumn("B");

  t.setString(0, "A", "Kether");
  t.setString(0, "B", "Binnah");

  t.setString(1, "A", "Frodo");
  t.setString(1, "B", "Chun-Li");

  return t;
}

static final void printTable(Table t) {
  String[] titles = new String[t.getColumnCount()];

  for (int i = 0; i != titles.length
    ; titles[i] = t.getColumnTitle(i++));

  println(titles);
  println();

  int i = 0;
  for (TableRow r : t.rows()) {
    print("[" + i++ + "] - | ");

    for (String s : titles)
      print(s + " : " + r.getString(s) + " | ");

    println();
  }
}

Magnetic_Garden

Thx!, thought the reason that I was using a class was because I thought that at all times you have to revert to classes. But it seems that this is not always the case.. (?)

GoToLoop

Actually, a Processing's sketch is itself a Java class! ;)

Magnetic_Garden

Well, it all works now as intended. Thank you very much ;)