public class User {

 private String name;
 private String surname;
 private int age;

 public User(String name, String surname, int age) {
  this.name = name;
  this.surname = surname;
  this.age = age;
 }

 public String getName() {
  return name;
 }

 public void setName(String name) {
  this.name = name;
 }

 public String getSurname() {
  return surname;
 }

 public void setSurname(String surname) {
  this.surname = surname;
 }

 public int getAge() {
  return age;
 }

 public void setAge(int age) {
  this.age = age;
 }

 @Override
 public boolean equals(Object o) {
  if (this == o) return true;
  if (o == null || getClass() != o.getClass()) return false;
  User user = (User) o;
  return age == user.age
    && Objects.equals(name, user.name)
    && Objects.equals(surname, user.surname);
 }

 @Override
 public int hashCode() {
  return Objects.hash(name, surname, age);
 }

 @Override
 public String toString() {
  return "User{" +
    "name='" + name + '\'' +
    ", surname='" + surname + '\'' +
    ", age=" + age +
    '}';
 }

}

<dependency>
 <groupId>org.projectlombok</groupId>
 <artifactId>lombok</artifactId>
 <version>1.16.10</version>
 <scope>provided</scope>
</dependency>

@EqualsAndHashCode
@ToString
@AllArgsConstructor
public class User {

 @Setter
 @Getter
 private String name;

 @Setter
 @Getter
 private String surname;

 @Setter
 @Getter
 private int age;

}

User user = new User("John", "Doe", 32);
user.setAge(30);
user.equals(new User("John", "Doe", 30)); // true

@EqualsAndHashCode
@ToString(of = {"name", "surname"})
@AllArgsConstructor
public class User {

 @Getter
 @Setter
 private String name;

 @Getter
 @Setter
 private String surname;

 @Getter
 @Setter
 private int age;

}

@EqualsAndHashCode
@ToString
@AllArgsConstructor
@Getter
@Setter
public class User {

 private String name;
 private String surname;
 private int age;

}

@EqualsAndHashCode
@ToString
@AllArgsConstructor
@Getter
@Setter
@Builder
public class User {

 private String name;
 private String surname;
 private int age;

}

User user=new User;
user.setxxx();
....
....

User user = User.builder()
  .name("John")
  .surname("Doe")
  .age(32)
  .build();

@Data
@Builder
public class User {

 private String name;
 private String surname;
 private int age;

}