Defer Operator RxJava

RxOperatorDefer.java

public class RxOperatorDefer {
    public static void main(String[] args) {
        User user = new User();
        Observable<String> name = user.getName();
        user.setName("Yudi Setiawan");
        name.subscribe(System.out::println);
    }
}

class User {
    private String name;

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

    public Observable<String> getName() {
        return Observable.defer(() -> Observable.just(name));
    }
}