Chapter 8, Problem 10PP

Program Plan Intro

Spiral in JFrame

Program Plan:

Filename: Spiral.java

• Import the required packages.
• Declare the class “Spiral”.
  • Declare the required the constant variable.
  • Declare the constructor.
    • Set the window size.
    • Close the window.
  • Declare the “paint ()” method.
    • Call the “paint()” method.
    • Declare the required variables with the values.
    • Draw a spiral till it reachs “POINTS”.
      • Increment the “theta” value by “0.1”.
      • Calculate the “x” and “y” values.
      • Call the “drawLine” method with the arguments.
      • Set the values.

Filename: ShowSpiral.java

• Declare the class “ShowSpiral”.
  • Define the main() method.
  • Create an object for “Spiral” method.
  • Show the spiral.