Chapter 5, Problem 12PP

Program Plan Intro

Draw monkey faces with the hands in Java Applet

Program Plan:

• Import required package.
• Define “enum” class for monkey hand position.
• Define “MonkeyFaces” class.
  • Initializes required variables.
  • Define main function.
  • Define “drawFace” method with the arguments of “Graphics” object, integer variables and “HandPosition” object.
    • Invoke “drawOval” method for object “canvas”.
    • Compute the monkey ear width, height and offset to draw the monkey ear.
    • Invoke “drawOval” method for object “canvas”.
    • Compute the monkey eye width, height and offset to draw the monkey eye.
    • Invoke “drawOval” method for object “canvas”.
    • Compute the monkey mouth width, height and offset to draw the monkey mouth.
    • Invoke “drawArc” for object “canvas” which is used to draw arc.
    • Declare required variables for hand offset.
    • Check location of hand using “switch” case.
      • If the case is “MONKEY_MOUTH”, then compute hand offset for “X” and “Y” and then call “drawHand” method.
      • If the case is “MONKEY_EYE”, then compute hand offset for “X” and “Y” and then call “drawHand” method.
      • If the case is “MONKEY_EAR”, then compute hand offset for “X” and “Y” and then call “drawHand” method.
  • Define “drawHand” method.
    • Compute palm width and height.
    • Invoke “fillOval” method for object “canvas”.
    • Compute finger width, height of monkey and offset.
    • Invoke “fillOval” method for object “canvas”.
  • Define “paint” method.
    • Call the “paint” method.
    • Set the size of the window.
    • Draw monkey ear by calling method “drawFace”.
    • Set text for first monkey face by using method “drawString”.
    • Draw monkey eye by calling method “drawFace”.
    • Set text for second monkey face by using method “drawString”.
    • Draw monkey mouth by calling method “drawFace”.
    • Set text for third monkey face by using method “drawString”.