Java arrayList element

Question

I have an issue regarding arrayList element while in looping I have two lists : the first list contains 2 elements : A and B. the second list contains 4 element : A1,B1,B2,B3 Now, what I want is to get from both the list to match their respective elements For example: A -> A1 B -> B1 B -> B2 B -> B3

public class MyArrayList {
    public static void main(String[] args) {
        List listA = new ArrayList<>();
        List listB = new ArrayList<>();
        listA.add("ElementA");
        listA.add("ElementB");
        listB.add("ElementA1");
        listB.add("ElementB1");
        listB.add("ElementB2");
        listB.add("ElementB3");
        listB.add("ElementB4");
        for (int i = 0; i < listA.size(); i++) {
            for (int j = 0; i < listB.size(); j++) {
                System.out.println(listA.get(i) + "-->" + listB.get(j));
            }
        }
    }
}

Answer 1

You code got some synax errors. You can print them when element from A is substring of element from B using String.contains().

public class MyArrayList {
    public static void main(String[] args) {
        List listA = new ArrayList<>();
        List listB = new ArrayList<>();
        listA.add("ElementA");
        listA.add("ElementB");
        listB.add("ElementA1");
        listB.add("ElementB1");
        listB.add("ElementB2");
        listB.add("ElementB3");
        listB.add("ElementB4");
        for (Object elementFromFirstList : listA) {
            for (Object elementFromSecondList : listB) {
                if (((String) elementFromSecondList).contains(
                        (String) elementFromFirstList)) {
                    System.out.println(elementFromSecondList + "-->" + elementFromFirstList);
                }
            }
        }
    }
}