Java List equals() Method

The equals() method of List interface compares the specified object with this collection for equality. It returns a Boolean value true if both the lists have same elements and are of the same size.

Syntax

Parameters

The parameter 'o' represents the object to be compared for equality with this list.

Specified By

equals in interface Collection<E>

Overrides

This method overrides equals in class Object

Returns

The equals method returns a Boolean value 'true' if the specified object is equal to this list else it returns false.

Example 1

import java.util.LinkedList;
import java.util.List;
public class JavaListEqualsExample1 {
public static void main(String[] args) {
        List<Integer> list= new LinkedList<>();
for (int i=0;i<11;i++){
list.add(i);
        }
        List<Integer> list1= new LinkedList<>();
for (int i=0;i<11;i++){
            list1.add(i);
        }
//It returns a Boolean value true if both lists have the same elements and size..
Boolean bool=list.equals(list1);
if (bool) {
System.out.println("Both the lists are equal.\n" +"List  : "+ list+"\n"+"List1 : "+list1);
        }
else{
System.out.println("Both the lists are equal.\n" +"List : "+ list+"\n"+"List1 : "+list1);
        }
    }
}

Test it Now

Output:

Both the lists are equal.
List  : [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]
List1 : [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

Example 2

import java.util.LinkedList;
import java.util.List;
public class JavaListEqualsExample2 {
public static void main(String[] args) {
        List<Integer> list= new LinkedList<>();
for (int i=0;i<10;i++){
list.add(i);
        }
        List<Integer> list1= new LinkedList<>();
for (int i=0;i<11;i++){
            list1.add(i);
        }
//It returns a Boolean value true if both lists have the same elements and size..
Boolean bool=list.equals(list1);
if (bool) {
System.out.println("Both the lists are equal.\n" +"List  : "+ list+"\n"+"List1 : "+list1);
        }
else{
System.out.println("Both the lists are unequal.\n" +"List : "+ list+"\n"+"List1 : "+list1);
        }
    }
}

Test it Now

Output:

Both the lists are unequal.
List : [0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
List1 : [0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

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Java List Methods