Chapter 11, Problem 4PE

Program Plan Intro

Eight colors

Program plan:

EightColor.Java

• Create a class named “EightColor”. Inside the class,
  • Define the required components.
  • Set the width and height of the frame.
  • Define the “EightColor ()” method.
    • Set the size of the frame.
    • Create an object for panel.
    • Set the layout.
    • Call the method “createControlPanel()”.
  • Definition of method “createControlPanel ()”.
    • Create the check box for Red, Green and blue constraints.
  • Definition of class “ColorListener()”.
    • Definition of method “actionPerformed()”.
      • Call the method “setColor()”.
        • Add action listener to the buttons.
        • Create an object for panel.
        • Add the button to the panel.
        • Set the layout.
        • Check the select value.
        • Set the background.
  • Definition of method “setColor ()”.
    • Declare and assign the values.
    • Check whether the red button is selected.
      • Assign red to 255.
        • Check whether the green button is selected.
        • • Assign red to 255.
        • Check whether the blue button is selected.
        • • Assign red to 255.

EightColorViewer.java

• Create a class named “EightColorViewer”. Inside the class,
  • Definition of “main()” method
    • Create an object for frame.
    • Close the frame.
    • Set the title for frame.
    • Set the visibility.