Initialize an Array of ArrayList [duplicate]

Answer 1

you can define like this :

ArrayList[] lists = (ArrayList[])new ArrayList[10];
    lists[0] = new ArrayList();
    lists[0].add("Hello");
    lists[0].add("World");
    String str1 = lists[0].get(0);
    String str2 = lists[0].get(1);
    System.out.println(str1 + " " + str2);