How copy property of ArrayList in another property of other ArrayList with different property name?

How copy values of company in:

>List<Person> personList

To enterprise of:

>List<Employee> employeeList

With Java-8?

I have:

@Getter
@Setter
public class Person {
    private String name;
    private String company;

}

And:

@Getter
@Setter
public class Employee {
    private String name;
    private String enterprise;

}

List<Person> personList
List<Employee> employeeList

I can't change the property name of enterprise.

I assume Employee has a constructor like Employee(String name, String enterprise)

You can convert Person objects to Employee by using stream().map(), then collect new Employee instances in a list.

Try this:

List<Employee> employeeList = personList.stream().map(p -> new Employee(p.getName(), p.getCompany()))
		.collect(Collectors.toList());

You could use some other methods from Lombok framework, like Builder.

Also, you could create a utility class for converting Person to Employee.

And your implementation with Stream API will be:

List<Person> personList = List.of(Person.builder()
                .name("name1")
                .company("company1")
                .build(),
        Person.builder()
                .name("name2")
                .company("company2")
                .build());

System.out.println(personList);

List<Employee> employeeList = personList.stream()
        .map(EmployeeConverter::convertToEmployee)
        .collect(Collectors.toList());

System.out.println(employeeList);

Output:

>[Person(name=name1, company=company1), Person(name=name2, company=company2)]
>[Employee(name=name1, enterprise=company1), Employee(name=name2, enterprise=company2)]

Other code details:

@UtilityClass
class EmployeeConverter {
    public Employee convertToEmployee(Person person) {
        return Employee.builder()
                .name(person.getName())
                .enterprise(person.getCompany())
                .build();
    }
}

@Getter
@Setter
@Builder
@ToString
class Person {
    private String name;
    private String company;
}

@Getter
@Setter
@Builder
@ToString
class Employee {
    private String name;
    private String enterprise;
}