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Index › Programming Questions & Help › Syntax Questions › Array of objects Null Pointer Exception
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Array of objects Null Pointer Exception (Read 870 times)
russellp
Array of objects Null Pointer Exception
Mar 29th, 2010, 1:22pm  
Hi,

the following code returns a Null Pointer Exception, and I think it is the way I have initialised the array. Any Tips?

Die[] dice;//Declare the array

int numdice = 10;
int i = 100;

void setup() {
 size(100,10);
 noStroke();
 }
void draw() {
 dice= new Die[numdice];
 TuioProcessing tuioClient = new TuioProcessing(this);
 myBus = new MidiBus(this,"IAC Bus 1","IAC Bus 1");// Create a new MidiBus object
 for (int i=0; i< dice.length; i++) {
   //load dice details into array???
   dice[i] = new Die(tobj.getSymbolID(), tobj.getX(), tobj.getY(), tobj.getAngle() );
 }

Thanks,
Russell
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antiplastik
Re: Array of objects Null Pointer Exception
Reply #1 - Mar 29th, 2010, 2:06pm  
Your syntax is OK. You should put those 3 lines into setup(), though :

Code:
dice = new Die[numdice];
TuioProcessing tuioClient = new TuioProcessing(this);
myBus = new MidiBus(this,"IAC Bus 1","IAC Bus 1");


and not in draw().

Oh, and you should call a dice a Dice, and not a Die. Makes more sense.
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