The user can enter a number to each of the two textinput boxes, then click/tap either of the four images
of mathematical operators. Once clicked, it should display a correct answer on the screen.
1. Add a comment line to the beginning of your code to include your name, something like this:
// HW2 by your name
This will serve as the identifier of your homework. 10 points (out of 100) will be deducted if no
such identifier is present in the code;
2. Find four mathematical images (+, -, x, ÷) fro
