Markdium-Chapter 9: Observable's action operators

Markdium-Java.java

     * OutPut result:
     * value emitted is Monday
     * onCompleteCalled
     */
    @Test
    public void testObservableWithOnErrorResumeNextEmpty() {
        Answer9_ObservableActions.getObservableWithOnErrorResumeNextEmpty()
                .subscribe(it -> System.out.println("value emitted is " + it),
                        Throwable::printStackTrace,
                        () -> System.out.println("onCompleteCalled"));
    }