make 3 dimensional array dynamic

Hello,

i`ve got 3 '3 dimensional' array`s.

They look like this:

private String[ , , ]test1 =newstring[100,53,1000];

private String[ , , ]test2 =newstring[100,53,1000];

private String[ , , ]test3 =newstring[100,53,1000];

Does anyone know how to make these array`s dynamic?

Greetz apaap

Anyone?
nobody?