List equals() Method in Java with Examples Last Updated : 03 Jan, 2025 Summarize Comments Improve Suggest changes Share Like Article Like Report The List equals() method is used to compare two lists. It compares the lists as, both lists should have the same size, and all corresponding pairs of elements in the two lists are equal. Implementation: Java // Java code to show the implementation of // addAll method in list interface import java.util.*; public class Geeks { public static void main(String[] args) { // Initializing a list of type ArrayList List<Integer> l = new ArrayList<>(); l.add(1); l.add(2); // Initializing another list List<Integer> l2 = new ArrayList<>(); l2.add(1); l2.add(2); if (l.equals(l2)) System.out.println("Equal"); else System.out.println("Not equal"); } } OutputEqual Syntax of List equals() Methodboolean equals(Object o)Parameters: This function has a single parameter which is object to be compared for equality. Returns: This method returns True if lists are equal. Example of List equals() MethodBelow programs show the implementation of this method. Program 1: (Demonstrate different Type in Collection - ArrayList and LinkedList) Java // Java code to show the implementation of // addAll method in list interface import java.util.*; public class Geeks { // Driver code public static void main(String[] args) { // Initializing a list of type Linkedlist List<Integer> l = new LinkedList<>(); l.add(10); l.add(15); l.add(20); System.out.println(l); // Initializing another list List<Integer> l2 = new ArrayList<Integer>(); l2.add(100); l2.add(200); l2.add(300); System.out.println(l2); if (l.equals(l2)) System.out.println("Equal"); else System.out.println("Not equal"); } } Output[10, 15, 20] [100, 200, 300] Not equal Program 2: The Case where values are equal. Java // Java code to show the implementation of // addAll method in list interface import java.util.*; public class Geeks { public static void main(String[] args) { // Initializing a list of type Linkedlist List<Integer> l = new ArrayList<>(); l.add(10); l.add(15); l.add(20); System.out.println(l); // Initializing another list List<Integer> l2 = new ArrayList<>(); l2.add(10); l2.add(15); l2.add(20); System.out.println(l2); if (l.equals(l2)) System.out.println("Equal"); else System.out.println("Not equal"); } } Output[10, 15, 20] [10, 15, 20] Equal Comment More infoAdvertise with us Next Article List add() Method in Java with Examples B barykrg Follow Improve Article Tags : Java Java-Collections Java - util package Java-Functions java-list +1 More 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. 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