Sometimes we need subList from ArrayList in Java. For example, we have an ArrayList of 10 objects and we only need 5 objects or we need an object from index 2 to 6, these are called subList in Java. Java collection API provides a method to get SubList from ArrayList. In this Java tutorial, we will see an example of getting SubList from ArrayList in Java. In this program, we have an ArrayList which contains 4 String objects. Later we call ArrayList.subList() method to get part of that List. SubList Example Java Java Program to get the part of a Listimport java.util.ArrayList; import java.util.List; /** * Java program to get SubList or a range of list from Array List in Java * */ public class GetSubListExample { public static void main(String[] args) { ArrayList<String> arrayList = new ArrayList<String>(); //Add elements to Arraylist arrayList.add("Java"); arrayList.add("C++"); arrayList.add("PHP"); arrayList.add("Scala"); /* subList Method returns sublist from list with starting index to end index-1 */ List<String> lst = arrayList.subList(1,3); //display elements of sub list. System.out.println("Sub list contains : "); for(int i=0; i< lst.size() ; i++) System.out.println(lst.get(i)); //remove one element from sub list Object obj = lst.remove(0); System.out.println(obj + " is removed from sub list"); //print original ArrayList System.out.println("After removing " + obj + " from sub list, original ArrayList contains : "); for(int i=0; i< arrayList.size() ; i++) System.out.println(arrayList.get(i)); } } Output: Sub list contains : C++ PHP C++ is removed from sub list After removing C++ from sub list, original ArrayList contains : Java PHP Scala List of Java homework exercise program from java67 blog Write a Java program to find Square root of a number How to find Fibonacci series in Java with Example How to reverse String in Java without using StringBuffer Write a Java program to check if number is Armstrong or not How to check if a number is a palindrome in Java How to find GCD of two number using Euclid method |
