Using Objects in equals and hashcode methods for null safety

import java.util.HashSet;

import java.util.Objects;

import java.util.Set;

public class Name {

       private String firstName;

       private String lastName;

       public Name(String firstName, String lastName) {

              this.firstName = firstName;

              this.lastName = lastName;

       }

       public String getFirstName() {

              return firstName;

       }

       public String getLastName() {

              return lastName;

       }

       @Override

       public String toString() {

              return "Name [firstName=" + firstName + ", lastName=" + lastName + "]";

       }

       @Override

       public int hashCode() {

              return 31 * Objects.hashCode(firstName) + Objects.hashCode(lastName);

       }

       @Override

       public boolean equals(Object obj) {

              if (this == obj) {

                     return true;

              }

              if (obj == null) {

                     return false;

              }

              if (getClass() != obj.getClass()) {

                     return false;

              }

              Name other = (Name) obj;

              return Objects.equals(this.firstName, other.firstName)

                           && Objects.equals(this.lastName, other.lastName);

       }

       public static void main(String[] args) {

              Name name1 = new Name("Lenin", "Kumar");

              Name name2 = new Name("Lenin", "Kumar");

              Name name3 = new Name("Lenin", "Kevin");

              System.out.println(name1.equals(name2));

              System.out.println(name1.equals(name3));

              Set names = new HashSet<>();

              names.add(name1);

              names.add(name2);

              names.add(name3);

              System.out.println(names);

       }

}