I someone to write an application that inputs from the user radius of circle and prints circle's diameter, circumference, area. Use the constant value 3.14159 for pi. Use the GUI technique. You may also use the predfefined constant Math.PI for the value of pi. Use the formulas (r is the radius): diametyer = 2r, circumference = 2(pi)r, area = pi(r squared).
Actually I know nothing of java but I'm very good in VB.