I don't know why this emits immediately not after 30seconds anyone know, What is I am missing here? ...

# rx

[am414]

I don't know why this emits immediately not after 30seconds
anyone know, What is I am missing here? ??

Observable<Integer> ob = Observable.timer(30,TimeUnit.SECONDS).just(1);

        ob.subscribe(n-> System.out.println(n));

[Matthieu Esnault]

This is a Kotlin Slack, so I think the most important thing you’re missing is Kotlin.

Observable.just is static, so :

• Your statement doesn’t compile in Kotlin
• There is a warning in java that explains the problem

Observable.timer emits 0L and completes, so if you need a 1, you can :

• Observable.timer and then map the 0 to 1
• Observable.just 1 and delay the emission