RxJava - BehaviorSubject

RxJava - BehaviorSubject

BehaviorSubject emits the most recent item at the time of their subscription and all items after that. We will use the sample example we used for PublishSubject

public class RxPublishSubject {
 
    public static void main (String args[])
    {
        final StringBuilder result1 = new StringBuilder();
      final StringBuilder result2 = new StringBuilder();         
      BehaviorSubject<String> subject =  BehaviorSubject.create(); 
      subject.subscribe(value -> result1.append(value) ); 
      subject.onNext("a"); 
      subject.onNext("b"); 
      subject.onNext("c"); 
      subject.subscribe(value -> result2.append(value)); 
      subject.onNext("d"); 
      subject.onComplete();
      //Output will be abcd
      System.out.println(result1);
      //Output will be cd being BehaviorSubject 
      //(c is last item emitted before subscribe)
      System.out.println(result2);
    }
}

 

Output

abcd
cd

 

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RxJava Tutorial RxJava - Environment Setup RxJava’s Characteristics RxJava - How Observable works RxJava - Single Observable RxJava - MayBe Observable RxJava - Completable Observable RxJava - Using CompositeDisposable RxJava - Creating Operators RxJava - Transforming Operators RxJava - Filtering Operators RxJava - Combining Operators RxJava - Utility Operators RxJava - Conditional Operators RxJava - Mathematical Operators RxJava - Subjects RxJava - PublishSubject RxJava - BehaviorSubject RxJava - AsyncSubject RxJava - ReplaySubject RxJava - Schedulers RxJava - Trampoline Scheduler RxJava - NewThread Scheduler RxJava - Computation Scheduler RxJava - IO Scheduler RxJava - From Scheduler RxJava - Buffering