adding into an arraylist code example
Example 1: java insert into arraylist
ArrayList<Integer> str=new ArrayList<Integer>();
str.add(0);
str.add(1);
// Result = [0, 1]
str.add(1, 11);
// Result = [0, 11, 1]
Example 2: arraylist add method
public void add(int index, E element) // no return value