Chapter 11, Problem 3PE

Program Plan Intro

Radio buttons

Program plan:

ThreeColorsRadioFrame.java

• Create a class named “ThreeColorsRadioFrame”. Inside the class,
  • Define the required components.
  • Set the width and height of the frame.
  • Define the “ThreeColorsRadioFrame ()” 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 radio button for Red, Green and blue constraints.
    • Create an object for “ButtonGroup”.
    • Add the button to the frame.
    • Create an object for panel.
    • Add the button to the panel.
    • Set the layout.
    • Check the select value.
    • Set the background.
  • Definition of method “makeButton ()”.
    • Create an object for button.
  • Definition of class “ButtonListner”.
    • Definition of method “actionPerfromed”.
    • Set the background color.
  • Create an object for button listener.
    • Set the action listener.
    • Return the value of button.

ThreeColorsViewer.java

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