How can I declare dynamic String array in Java

Question

I am using String Array declare as zoom z[]=new String[422];. But this array stores value from 0 to 32, so I got null pointer except

Answer 1

The Array.newInstance(Class componentType, int length) method is to be used to create an array with dynamically length.

Multi-dimensional arrays can be created similarly with the Array.newInstance(Class componentType, int... dimensions) method.