如何使用RxJava订阅单个观察者的多个观察者？

import io.reactivex.rxjava3.core.Observable;
import io.reactivex.rxjava3.core.Observer;
import io.reactivex.rxjava3.disposables.Disposable;

public class MultipleObserversExample {
    public static void main(String[] args) {
        // 创建一个 Observable
        Observable<String> observable = Observable.just("Hello RxJava");

        // 创建两个观察者
        Observer<String> observer1 = getObserver("Observer 1");
        Observer<String> observer2 = getObserver("Observer 2");

        // 订阅多个观察者
        Disposable disposable1 = observable.subscribe(observer1);
        Disposable disposable2 = observable.subscribe(observer2);

        // 如果不再需要订阅，可以取消订阅
        // disposable1.dispose();
        // disposable2.dispose();
    }

    private static Observer<String> getObserver(String name) {
        return new Observer<String>() {
            @Override
            public void onSubscribe(Disposable d) {
                System.out.println(name + " subscribed");
            }

            @Override
            public void onNext(String s) {
                System.out.println(name + " received: " + s);
            }

            @Override
            public void onError(Throwable e) {
                System.out.println(name + " error: " + e.getMessage());
            }

            @Override
            public void onComplete() {
                System.out.println(name + " completed");
            }
        };
    }
}