Initialize an Array of ArrayList [duplicate]

Answer 1

That syntax works fine for the non-generic ArrayList. (ideone)

But it won't work for the generic ArrayList: (ideone)

This code:

ArrayList[] subsection = new ArrayList[4];

Gives a compiler error:

Main.java:8: generic array creation
        ArrayList[] subsection = new ArrayList[4];

For the generic version use an ArrayList>:

ArrayList> subsection = new ArrayList>();