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Select correct demonstration of WorkRequest cancellation.

A. workManager.enqueue(OneTimeWorkRequest.Builder(FooWorker::class.java).build ())

B. val request: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() workManager.enqueue(request) val status = workManager.getWorkInfoByIdLiveData(request.id) status.observe(...)

C. val request: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() workManager.enqueue(request) workManager.cancelWorkById(request.id)

D. val request1: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() val request2: WorkRequest = OneTimeWorkRequest.Builder (BarWorker::class.java).build() val request3: WorkRequest = OneTimeWorkRequest.Builder (BazWorker::class.java).build() workManager.beginWith(request1, request2).then(request3).enqueue()

E. val request: WorkRequest = OneTimeWorkRequest.Builder (FooWorker::class.java).build() workManager.enqueue(request) workManager.cancelWork(request)

For example, we have a file in our assets folder app/src/main/assets/sample_teas.json. To get an InputStream for reading it, from out Context context, we can try do this:

A. val input = context!!.resources.openRawResource(R.raw.sample_teas)

B. val input = context!!.assets.open("sample_teas.json")

C. val input = context!!.resources.assets.open("sample_teas.json")

Once your test has obtained a UiObject object, you can call the methods in the UiObject class to perform user interactions on the UI component represented by that object. You can specify such actions as: (Choose four.)

A. click() : Clicks the center of the visible bounds of the UI element.

B. touch() : Touch the center of the visible bounds of the UI element.

C. dragTo() : Drags this object to arbitrary coordinates.

D. moveTo() : Move this object to arbitrary coordinates.

E. setText() : Sets the text in an editable field, after clearing the field's content. Conversely, the clearTextField() method clears the existing text in an editable field.

F. swipeUp() : Performs the swipe up action on the UiObject. Similarly, the swipeDown(), swipeLeft (), and swipeRight() methods perform corresponding actions.

LiveData.postValue() and LiveData.setValue() methods have some differences. So if you have a following code executed in the main thread:

liveData.postValue("a"); liveData.setValue("b");

What will be the correct statement?

A. The value "b" would be set at first and later the main thread would override it with the value "a".

B. The value "a" would be set at first and later the main thread would override it with the value "b".

C. The value "b" would be set at first and would not be overridden with the value "a".

D. The value "a" would be set at first and would not be overridden with the value "b".

For example, we have a file in our raw folder app/src/main/res/raw/sample_teas.json. To get an InputStream for reading it, from out Context context, we can do this:

A. InputStream input = context.openRawResource(R.raw.sample_teas);

B. InputStream input = context.getRawResource(R.raw.sample_teas);

C. InputStream input = context.getResources().openRawResource (R.raw.sample_teas);