(Turtle Graphics) Modify your solution to Exercise 6.21— Turtle Graphics —to add a graphical user interface using JTextFields and JButtons. Draw lines rather than asterisks (*). When the turtle...

graphical user interface using JTextFields and JButtons. Draw lines rather than asterisks (*). When the turtle graphics program specifies a move, translate the number of positions into a number of pixels on the screen by multiplying the number of positions by 10 (or any value you choose). Implement the drawing with Java 2D API features.