As simply as possible how do i write to a text file?

spamynator_1

Making a game and i need to write to a/some text file(s). i need to be able to save no more than a single string to a file. How could i most simply write to and read from a text file and store the information in variables?

GoToLoop

You can try the simple saveStrings() + loadStrings().
Or something more advanced like saveTable() + loadTable().

asimes

saveStrings(): http://processing.org/reference/saveStrings_.html
loadStrings(): http://processing.org/reference/loadStrings_.html

spamynator_1

why would this give me a java.lang.NullPointerException?

  Table save;


  void savefile() {
    save = new Table();

    save.addColumn("map");
    save.addColumn("health");
    save.addColumn("stamina");
    save.addColumn("mana");
    save.addColumn("level");
    save.addColumn("strength");
    save.addColumn("defense");
    save.addColumn("melee");
    save.addColumn("magic");
    save.addColumn("ornothology");

    TableRow newRow = save.addRow();
    newRow.setInt("map", map);
    newRow.setInt("health", health);
    newRow.setInt("stamina", stamina);
    newRow.setInt("mana", mana);
    newRow.setInt("level", level);
    newRow.setInt("strength", strength);
    newRow.setInt("defense", defense);
    newRow.setInt("melee", melee);
    newRow.setInt("magic", magic);
    newRow.setInt("ornothology", ornothology);

    saveTable(save, "data/01927647864/02758.tcok");
  }

Bird

You are attempting to set what I assume to be variables as integers, but they have not been declared in your code. They are therefore null.

spamynator_1

map, health, stamina, mana, level, strength, defense, melee, magic, ornothology are already defined elsewhere as integers

Tyekai

Are they defined globally? Otherwise your savefile() function won't be able to see them.

spamynator_1

they are indeed defined globally like this;

  int health = 100;
  int stamina = 100;
  int mana = 100;
  //Levelables
  int level = 1;
  int strength = 1;
  int defense = 1;
  int melee = 1;
  int magic = 1;
  int ornothology = 1;
  int map = 1;

  Table save;



  void savefile() {
    save = new Table();

    save.addColumn("map");
    save.addColumn("health");
    save.addColumn("stamina");
    save.addColumn("mana");
    save.addColumn("level");
    save.addColumn("strength");
    save.addColumn("defense");
    save.addColumn("melee");
    save.addColumn("magic");
    save.addColumn("ornothology");

    TableRow newRow = save.addRow();
    newRow.setInt("map", map);
    newRow.setInt("health", health);
    newRow.setInt("stamina", stamina);
    newRow.setInt("mana", mana);
    newRow.setInt("level", level);
    newRow.setInt("strength", strength);
    newRow.setInt("defense", defense);
    newRow.setInt("melee", melee);
    newRow.setInt("magic", magic);
    newRow.setInt("ornothology", ornothology);

    saveTable(save, "data/01927647864/02758.tcok");
  }

PhiLho

If I run your code, I don't get a NPE, but an IllegalArgumentException because saveTable() doesn't recognize the extension, so doesn't know which format to use for saving.

Should be:

saveTable(save, "data/01927647864/02758.tcok", "csv");

for example.

spamynator_1

ok this just isnt going to work, and i dont think it supports int's anyways, is there any way i can just save a few ints to a text document, what the hell its easier to write to a file in python.

spamynator_1

nevermind on that the null was from elsewhere, my bad