create an ArrayList code example

Example 1: how to make an array of arraylists in java

ArrayList<Integer> [] myList = (ArrayList<Integer>[]) new ArrayList[4];

Example 2: how to make an arraylist java

ArrayList<Integer> integerArray = new ArrayList<Integer>();
ArrayList<String> stringArray = new ArrayList<String>();
ArrayList<Double> doubleArray = new ArrayList<Double>();
//... keep replacing what is inside the <> with the appropriate
//data type

Example 3: how to declare array of arraylist in java

List<List<Individual>> group = new ArrayList<List<Individual>>(4);