Chapter 20, Problem 4PE

Program Plan Intro

Three check boxes

Program plan:

EightColorsCheckBoxFrame.java

• Create a class named “EightColorsCheckBoxFrame”. Inside the class,
  • Define the required components.
  • Set the width and height of the frame.
  • Define the “EightColorsCheckBoxFrame ()” method.
    • Set the frame size
    • Define the panel
    • Add the components to the frame
    • Create the control panel.
  • Define the “createControlPanel ()” method.
    • Define the check boxes.
    • Define the class “ColorListener”
      • Define the action to be performed.
        • Add the action for the buttons defined.
        • Position of the components in the panel.
        • Add the elements to the frame
        • Call the method to “setColor()”
  • Define the “SetColor ()” method.
    • Initialize the required variables.
    • Condition to validate the buttons that are defined.
    • Define the background color.
    • Set the background color.

EightColorsViewer.java

• Create a class named “EightColorsViewer”. Inside the class,
  • Define the “main()” method
    • Define the frame
    • Set the close operation
    • Set the title
    • Set the visibility.