BehaviorSubject.kt

//In this example the value 'a' is written to the console:
fun BehaviorSubjectExample(){
  //Need to provide a default value.
    var subject = new BehaviorSubject<string>("a")
    subject.Subscribe(println(it))
}

//In this example the value 'b' is written to the console, but not 'a'.
fun BehaviorSubjectExample2(){
    var subject = new BehaviorSubject<string>("a")
    subject.onNext("b")
    subject.subscribe(println(it))
}

//In this example the values 'b', 'c' & 'd' are all written to the console, but again not 'a'
fun BehaviorSubjectExample3(){
    var subject = new BehaviorSubject<string>("a")
    subject.onNext("b")
    subject.subscribe(println(it));
    subject.onNext("c")
    subject.onNext("d")
}

//Finally in this example, no values will be published as the sequence has completed. Nothing is written to the console.
fun BehaviorSubjectCompletedExample(){
    var subject = new BehaviorSubject<string>("a")
    subject.onNext("b")
    subject.onNext("c")
    subject.onCompleted()
    subject.subscribe(println(it))
}