Chapter 14, Problem 14.27PE

Program Plan Intro

Draw a detailed clock

Program Plan:

• Import required packages.
• Define the main class “E27” that extends the “Application” class.
  • The method “start ()” overrides the start method in the “Application” class.
  • Create a clock pane
  • Create a string to display the time.
  • Add the created string to the label.
  • Create a border pane and set it to center.
  • Set the label at the bottom.
  • Create a scene and place it on the stage.
  • Display the stage using “show ()” method.
  • Define the “main ()” method.
    • Launch the application.
• Create a class “DetailedClockPane” that extends Pane.
  • Declare required parameters for the clock.
  • Define the constructor with no parameters.
    • Get the current time.
  • Define the constructor with three parameters.
    • Set the hour, minute and second.
  • Use accessors and mutators methods to get and set the hour, minute and seconds.
  • Set the current hour, minute and seconds inside the function “setCurrentTime ()”.
    • Finally call the function “paintClock ()”.
  • Give function definition for “paintClock ()”.
    • Initialize the clock parameters.
    • Create a circle using “new Circle ()”.
    • Set the color and stroke color for the circle.
    • Set the length to draw second’s hand.
    • Draw the second hand by creating a line using “new Line ()”.
    • Set the stroke color.
    • Set the length to draw minute’s hand.
    • Draw the minute hand by creating a line using “new Line ()”.
    • Set the stroke color.
    • Set the length to draw hour’s hand.
    • Draw the hour hand by creating a line using “new Line ()”.
    • Set the stroke color.
    • Now, clear the pane using “clear ()” method.
    • Add the circle and three lines to the pane.
    • Add more details to the clock.
    • Use “for” loop to display hours on the clock.
  • Give function definition for “setWidth ()” to set width.
    • Set the width of the pane.
    • Call the function “paintClock ()”.
  • Give function definition for “setHeight ()” to set height.
    • Set the height of the pane.
    • Call the function “paintClock ()”.