core

you have two approaches: ArrayList<String> ar = new ArrayList(); ar.add(“UserId”); //adding item to arraylist ar.add(“Directory”); ar.add(“Username”); ar.add(“PhoneNumber”); // approach one using iteration for (Iterator<String> it = ar.iterator(); it.hasNext(); ) { String f = it.next(); if (f.equals(“UserId”)) System.out.println(“UserId found”); } // approach two using a colletion which supports fetching element by key Map<String,String> myMap=new HashMap<>(); for(String … Read more

Introduction If you are looking for a way to get substring items within an ArrayList in Java, then you have come to the right place. In this article, we will discuss how to get substring items within an ArrayList in Java. We will look at different methods of doing this, such as using the subList() … Read more