not sure how to do these challenges,tasks 1,2, and 3?

Basically, you would write the code like this:

Toast.makeText(this, "All done!", Toast.LENGTH_LONG);

The makeText() method is a static method for Toast. That's why you call it Toast.makeText(). If makeText() weren't static you would first need to instantiate Toast, as this: Toast toast = new Toast() and then you would call toast.makeText(). As for the parameters, those are the data you would pass to a method, for the method to be able to do its work correctly. So, the first parameters is this, because this refers to the Activity (technically, you need to pass a Context object, but since Activity inherits from Context, everything's good by just calling this). In the second parameter, you specify what message you would like the Toast to display, and the third parameter refers to how long you want the Toast to show up (it can either be LENGTH_SHORT or LENGTH_LONG).

Hope it helps, enjoy coding. :)

i copied and pasted what you told me, ansi got this error message?

JavaTester.java:84: error: variable allDoneToast might not have been initialized else if (allDoneToast.mConstructorCalled) { ^ 1 error

i finally figured it out ….this worked

Toast allDoneToast = Toast.makeText(this, "All done!", Toast.LENGTH_LONG);

i didn't put the (=).

I was trying to start it all on a new line. thanks for your help