Complete this in JavaFX

Problem Description: Develop a program that displays a histogram to show the occurrences of each letter in a text area. The histogram should show the occurrences of each letter in a text file, as shown in the following figure. Assume that the letters are not case sensitive Exercise16_11 ABCDE FGHI J KLMNOP QR S TUVWx Y Z View Your Task Place a pane that will display the histogram in the center of the frame. Place a label and a text field in a panel, and put the panel in the south side of the frame. The text file will be entered from this text field. . .Pressing the Enter key on the text field causes the program to count the occurrences of each letter and display the count in a histogram