Your app should have a main activity method that responds to a press of the button "display computers" and does the following: (a) creates three computer objects. (make certain to declare three separate computer references and use these in the object creation process. you can use an array of computers (references) for this—or even a list—but it is not required.) (b) reads all the computer data from the data file into the three respective computer objects that you created. (c) displays all the data for the three computers (retrieved from the objects) in the textview below the button. (d) displays the average amount of ram in the three computers in gb (as a real number) in the textview below the computer data. display this value to one decimal place (for example, 10.5). (e) displays the average price of the three computers in the textview below the computer data. as usual for money, display the value to two decimal places (for example, $500.50).