GeezerVison

loadJSONArray()

Loads an array of JSON objects from the data folder or a URL, and returns a JSONArray. Per standard JSON syntax, the array must be enclosed in a pair of hard brackets [], and each object within the array must be separated by a comma.

All files loaded and saved by the Processing API use UTF-8 encoding.

• // The following short JSON file called "data.json" is parsed 
  // in the code below. It must be in the project's "data" folder.
  
  /*
  [
    {
      "id": 0,
      "species": "Capra hircus",
      "name": "Goat"
    },
    {
      "id": 1,
      "species": "Panthera pardus",
      "name": "Leopard"
    },
    {
      "id": 2,
      "species": "Equus zebra",
      "name": "Zebra"
    }
  ]
  */
  
  JSONArray values;
  
  void setup() {
  
    values = loadJSONArray("data.json");
  
    for (int i = 0; i < values.size(); i++) {
      
      JSONObject animal = values.getJSONObject(i); 
  
      int id = animal.getInt("id");
      String species = animal.getString("species");
      String name = animal.getString("name");
  
      println(id + ", " + species + ", " + name);
    }
  }
  
  // Sketch prints:
  // 0, Capra hircus, Goat
  // 1, Panthera pardus, Leopard
  // 2, Equus zebra, Zebra
  

• loadJSONArray(filename)
• loadJSONArray(file)

• filename(String)name of a file in the data folder or a URL

• JSONArray

• JSONArray
• loadJSONObject()
• saveJSONObject()
• saveJSONArray()