List add(int index, E element) method in Java Last Updated : 03 Dec, 2024 Comments Improve Suggest changes Like Article Like Report The add(int index, E ele) method of List interface in Java is used to insert the specified element at the given index in the current list. Implementation: Java // Java code to illustrate add(int index, E elements) import java.util.*; public class ArrayListDemo { public static void main(String[] args) { // Creating List List<String> l = new ArrayList<String>(5); // Adding element in List l.add("Geeks"); l.add("For"); l.add("Geeks"); // use add() method to initially // add elements in the list l.add(0, "Hello"); // Printing elements for (String str : l) { System.out.print(str + " "); } } } OutputHello Geeks For Geeks Syntax of Methodpublic add(int index, E element)Parameter: This method accepts two parameters as shown in the above syntax:index: This parameter specifies the index at which we the given element is to be inserted.element: This parameter specifies the element to insert in the list.Return Value: Boolean and it returns true if the object is added successfully. Exceptions:UnsupportedOperationException - It throws this exception if the add() operation is not supported by this list.ClassCastException - It throws this exception if the class of the specified element prevents it from being added to this list.NullPointerException - It throws this exception if the specified element is null and this list does not permit null elements.IllegalArgumentException - It throws this exception if some property of this element prevents it from being added to this list.Example of List add() MethodBelow programs illustrate the List.add(int index, E element) method: Java // Java code to illustrate add(int index, E elements) import java.util.*; public class ArrayListDemo { public static void main(String[] args) { // Create an empty list List<Integer> l = new ArrayList<Integer>(5); // Adding Elements in List l.add(10); l.add(20); l.add(30); // Add a new 25 at index 2 and print true // if the element is added successfully System.out.println(l.add(2, 25)); // Prints element of List for (Integer num : l) { System.out.print(num + " "); } } } Output10 20 25 30 Comment More infoAdvertise with us Next Article List addAll() Method in Java with Examples G gopaldave Follow Improve Article Tags : Java Java-Collections Java-Functions java-list Practice Tags : JavaJava-Collections Similar Reads Java List Interface The List Interface in Java extends the Collection Interface and is a part of the java.util package. It is used to store the ordered collections of elements. In a Java List, we can organize and manage the data sequentially. Key Features:Maintained the order of elements in which they are added.Allows 15+ min read List add() Method in Java with Examples The List add() method adds (appends) an element to a list. It can be used for both ArrayList and LinkedList. Example of List add() Method: Java // Java program to demonstrate // ArrayList usage import java.io.*; import java.util.ArrayList; import java.util.List; class GFG { public static void main ( 3 min read AbstractList set() Method in Java with Examples The set() method of java.util.AbstractList class is used to replace any particular element in the abstract list created using the AbstractList class with another element. This can be done by specifying the position of the element to be replaced and the new element in the parameter of the set() metho 3 min read List indexOf() Method in Java with Examples This method returns the index of the first occurrence of the specified element in this list, or -1 if this list does not contain the element. Example:Java// Java Program to Implement List // indexOf() Method import java.util.*; class GFG { public static void main (String[] args) { // List Created Li 2 min read List lastIndexOf() Method in Java with Examples This method returns the last index of the occurrence of the specified element in this list, or -1 if this list does not contain the element. Example:Java// Java Program to demonstrate List // lastIndexOf() Method import java.util.*; class GFG { public static void main (String[] args) { // Created Li 2 min read List remove(Object obj) method in Java with Examples The remove(Object obj) method of List interface in Java is used to remove the first occurrence of the specified element obj from this List if it is present in the List. Example:Java// Java Program Illustrate List // remove(Element) Method import java.util.*; class GFG { public static void main (Stri 2 min read List get() method in Java with Examples The get() method of List interface in Java is used to get the element present in this list at a given specific index. Example:Java// Java Program to demonstrate List // get() Method import java.util.*; class Main { public static void main (String[] args) { // Create a List List<Integer> a=new 2 min read List contains() method in Java with Examples The contains() method of List interface in Java is used for checking if the specified element exists in the given list or not. Example:Java// Java Program to Demonstrate // List contains() Method import java.util.*; class GFG { public static void main (String[] args) { List<Integer> l = new Ar 3 min read List add(int index, E element) method in Java The add(int index, E ele) method of List interface in Java is used to insert the specified element at the given index in the current list. Implementation:Java// Java code to illustrate add(int index, E elements) import java.util.*; public class ArrayListDemo { public static void main(String[] args) 2 min read List addAll() Method in Java with Examples This method appends all of the elements in the specified collection to the end of this list, in the order that they are returned by the specified collection's iterator. Syntax: boolean addAll(Collection c) Parameters: This function has a single parameter, i.e, Collection c, whose elements are to be 2 min read Like