in java please

according to pearson

13.21 (Algebra: vertex form equations) The equation of a parabola can be expressed in either standard form (y = ar? + bx + c) or vertex form (y = ax - h)+ k). Write a program that prompts the user to enter a, b, and c as integers in standard -b 4acf form and displays = and k = in the vertex form. Display h 20 4a and k as rational numbers. Here are some sample runs: k = Enter a, b, c: 131 his -3/2 k is -574 Enter a. b. c: 2 3 4 his -3/4 kis 23/8