Hi,
I think I must misunderstand what you are saying about array sizes but I very often
initilise arrays with MUCH more than 7000
elements. The following code fills a double array with a million random doubles in one
method with no issues.
Cheers,
Brad
public class Test {
public Test() {
aMethod();
}
private void aMethod() {
double[] testa = new double[1000000];
for (int i = 0; i < testa.length; i++) {
testa[i] = Math.random();
System.out.print(".");
}
System.out.println("");
System.out.println("Done");
}
public static void main(String[] args) {
new Test();
}
}
Artur Biesiadowski wrote:
>
> Philip J Colbert wrote:
>
> > Hi all
> >
> > I have a class that is just basically a extension from an object that
> > returns
> > a shape3D. In this class all I do is set the Ceometry and Coord Index
> > for a
> > shape ("Yes I know it is large but I don't see why there is a
> > problem") The
> > geometry is large and has over 1000 points in it! The runtime error I
> > get is
> > below and the line that calls it is just a basic call to a constructor.
>
> In current version of java there is a 64k limit on method side.
> Unfortunately, array initialization takes up a lot of space (I'm shocked
> that 7 years have passed and we still do not have special constant for
> arrays inside classfile).
>
> Anyway, for each array element, you need
> aload array
> bipush index
> ldc2 float_data
> fastore
>
> This is 1 + 3 + 3 + 1 = 8 bytes per element. This means that you can
> have around 7000 entries in array at most. 1000 points means 3000
> coordinates. If you also have colors and indices you can easily go over
> 7000 limit.
>
> Solution is to load data from external file. It will be probably faster,
> less stressing for jit/jvm, easier to modify and you will not have to
> worry about method size. Compile time should also get shorter :)
>
> Artur
>
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