Re: [chuck-users] NullPointerException

Just a newbie suggestion, but maybe: fun void print() { for( 0=>int i; i>>; } Error might be because "size_" returns 1 + the last addressable element of the array? try "size_ - 1" instead? Good luck, -Drew eduard aylon wrote:

Hi list,

I am trying to make a list of objects where each object has references to other objects, but I am not succeeding and I get a NullPointerException. The piece of code below may represent what I am trying to do.

class object { Std.rand2f(0., 1.) => float f_; }

class Item extends object { 2 => int size_; object item_[size_];

fun void print() { for( 0=>int i; i>>; } <<<"----------------------------------------------">>>; <<<"calling print from within class definition">>>; <<<"----------------------------------------------">>>; print(); }

4 => int n; Item l[n];

// no problems up until here

<<<"----------------------------------------------">>>; <<<"calling print from outside class definition">>>; <<<"----------------------------------------------">>>;

for( 0=>int i; i

After execution I get: [chuck](VM): NullPointerException: shred[id=1:test.ck], PC=[37]

Excuse me if it's too obvious, but I can't see why it rises the null pointer exception. Any ideas?

thanks in advance,

eduard

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