Order in which various scripts attached get called.

Questions & Answers
1

I have 2 scripts Test_Json and GetJson attached to a Game Object which contains only function Start ().I created a JSON in Test_Json. And trying to access created.But it shows

NullReferenceException: Object reference not set to an instance of an object
GetJson.Start () (at Assets/JSON Tests/UnityScript/GetJson.js:8)

But when accessing it in the function Update then it works completely fine.So how to know which script is getting executed first …Same goes for function Update ().
Here are my scripts ::

GetJson

#pragma strict

public var test_json:Test_Json;

function Start () 
{
	test_json=FindObjectOfType(typeof(Test_Json));
	print(test_json.I.ToString());
	print(test_json.I["name"]);
	print(test_json.I["Symbol"]);
	print(test_json.I["Bond"]);
}

function Update () {
}


   **Test_Json**
#pragma strict

import SimpleJSON;

var test_JsonString:String;
var test:String;
var symbol:String;
var Element1:String;
var Element2:String;
var I:SimpleJSON.JSONClass;
function Start () 
{
	test="Sanket";
	symbol="SANK";
	Element1="Element1";
	Element2="Element2";
	I=new JSONClass();
	I["name"]=test;
	I["Symbol"]=symbol;
	I["Bond"]["Element1"].Add(Element1);
	I["Bond"]["Element2"].Add(Element2);
}

function Update () 
{
//	var N = JSONNode.Parse(test_JsonString);
	
}
2

Edit>Project Settings>Script Execution order. Obviously, you want Test_Json to execute first, because that defines all the values that the other class then uses. So, either you want to make Test_Json execute before everything else, or Get_Json to execute after everything else. By changing the execution order, you alter how late in each cycle it is called. This goes for Start, as well as Update, FixedUpdate, LateUpdate, etc.