public final class Person {
private final String name;
private final int age;
public Person(String name, int age) {
this.name = name;
this.age = age;
}
public String getName() {
return name;
}
public int getAge() {
return age;
}
}
@Override
public boolean equals(Object obj) {
if (this == obj) {
return true;
}
if (!(obj instanceof Person)) {
return false;
}
Person other = (Person) obj;
return Objects.equals(name, other.name) && age == other.age;
}
@Override
public int hashCode() {
return Objects.hash(name, age);
}
public class Person {
// ...
public Person copy(String newName, int newAge) {
return new Person(newName, newAge);
}
// ...
}
