Resultant Calculator App

On running the application, it requests for the total number of forces in the plane. The value supplied has to be an integer. After value is supplied, you hit the continue button which then ask you to put the force which has to be a numerical value; the horizontal position which either takes the value 'left' or 'right'; the vertical position which either takes 'up' or 'down' and the angle for the force which should be a positive number ranging from 0 to 90. After every entry is supplied, you hit the continue button but when the total number of force is reached the continue button changes to Compute Resultant. On hitting this button, the app displays the X and Y component of each force with a button view illustration. When this button is clicked, the app displays the pictorial view of the solution.