package rx;

import io.reactivex.rxjava3.annotations.NonNull;
import io.reactivex.rxjava3.core.Observable;
import io.reactivex.rxjava3.core.Observer;
import io.reactivex.rxjava3.disposables.Disposable;
import io.reactivex.rxjava3.schedulers.Schedulers;

import java.math.BigDecimal;

public class EmptyConcatExample {
 public static void main(String[] args) {
// concat();
 // 使用字符串初始化BigDecimal以保持精度
 BigDecimal num1 = new BigDecimal("333.0");
 BigDecimal num2 = new BigDecimal("0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000001");

 // 进行加法运算
 BigDecimal result = num1.add(num2);

 // 输出结果
 System.out.println("Result: " + result); // 结果应该是333.1

 Observable.empty().subscribe(new Observer<Object>() {

 @Override
 public void onSubscribe(@NonNull Disposable d) {
 System.out.println("onSubscribe");
 }

 @Override
 public void onNext(@NonNull Object o) {
 System.out.println("onNext");

 }

 @Override
 public void onError(@NonNull Throwable e) {
 System.out.println("onError");
 }

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

 private static void concat() {
 Observable<Object> emptyObservable = Observable.empty();
 Observable<Integer> numberObservable = Observable.just(1, 2, 3);
 Observable.concat(emptyObservable, numberObservable)
 .observeOn(Schedulers.newThread())
 .subscribeOn(Schedulers.newThread())
 .subscribe(new Observer<Object>() {
 @Override
 public void onSubscribe(Disposable d) {
 System.out.println("onSubscribe "+Thread.currentThread().getName());
 }

 @Override
 public void onNext(Object o) {
 System.out.println("onNext: " + o);
 }

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

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