Question

I have a similar problem that is described below:

iterate static int values in java

The difference is that in my class I have elements that are ArrayLists (all ArrayLists contains elements of the same type), not primitive types.

I would like to know whether it is possible to iterate elements and inside this loop iterate declared ArrayList?

Answer 1

You can directly iterate over ArrayLists, so your example is different from the link you posted, they needed to use reflection to iterate them because they weren’t already grouped into a container:

class MyClass {
   public static ArrayList<A> myList = new ArrayList<>(
                                       Arrays.asList(new A[]{ A1, A2, ..., AN);

   public static void main(String[] args) {
       // iterate over your list
       for(A a : myList) {
          // do something with A object
       }
   }
}