src/Person.java - master - itokar98/HomeWorkPatternsCreationalTask1

src/Person.java
94 строки2 KB
Ilya Tokar
First commit
16 ноя 2025, 00:53
16 ноя 2025, 00:538e6b772
public class Person {
    protected final String name;
    protected final String surname;
    protected int age;
    protected boolean ageKnown;
    protected String address;

    public Person(String name, String surname) {
        this.name = name;
        this.surname = surname;
        this.ageKnown = false;
    }

    public Person(String name, String surname, int age) {
        this.name = name;
        this.surname = surname;
        this.age = age;
        this.ageKnown = true;
    }

    public boolean hasAge() {
        return ageKnown;
    }

    public boolean hasAddress() {
        return address != null;
    }

    public String getName() {
        return name;
    }

    public String getSurname() {
        return surname;
    }

    public Integer getAge() {
        return ageKnown ? age : 0;
    }

    public String getAddress() {
        return address;
    }

    public void setAddress(String address) {
        this.address = address;
    }

    public void happyBirthday() {
        if (ageKnown) {
            age++;
        }
    }

    public PersonBuilder newChildBuilder() {
        return new PersonBuilder()
                .setSurname(this.surname)
                .setAddress(this.address)
                .setAge(0);
    }

    @Override
    public String toString() {
        return "Person{name='" + name + "', surname='" + surname + "'" +
                (ageKnown ? ", age=" + age : "") +
                (address != null ? ", address='" + address + "'" : "") +
                '}';
    }

    @Override
    public int hashCode() {
        int result = name.hashCode();
        result = 31 * result + surname.hashCode();
        if (ageKnown) {
            result = 31 * result + age;
        }
        if (address != null) {
            result = 31 * result + address.hashCode();
        }
        return result;
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) return true;
        if (!(obj instanceof Person)) return false;
        Person other = (Person) obj;
        return name.equals(other.name) &&
                surname.equals(other.surname) &&
                ageKnown == other.ageKnown &&
                (!ageKnown || age == other.age) &&
                java.util.Objects.equals(address, other.address);
    }
}