Chapter 9, Problem 13PE

Program Plan Intro

Implementing BetterRectangle class

Program plan:

Filename: “BetterRectangle.java”

This snippet of code is used to implement the class “BetterRectangle”. In the code,

• Import the required packages.
• Define the class “BetterRectangle”.
  • Define a constructor “BetterRectangle ()”.
    • Call the method “setLocation()”.
    • Call the method “setSize()”.
  • Define the method “getPerimeter()”.
    • Return the calculated value.
  • Define the method “getarea()”.
    • Return the calculated value.

Filename: “BetterRectangleTester.java”

This snippet of code is used to implement the class “BetterRectangleTester”. In the code,

• Import the required packages.
• Define the class “BetterRectangleTester”.
  • Define a method “main()”.
    • Create an object “kls”.
    • Set the value of “methods”.
    • Set the value of “construcors”.
    • Set the value of “ctorOK”.
    • Set the value of “getPerimeterOK”.
    • Set the value of “getAreaOK”.
    • Set the value of “superOK”.
    • Print the value of “kls”.
    • Print the expected value of “kls”.
    • Print the value of “ctorOK”.
    • Print the expected value of “ctorOK”.
    • Print the value of “getPerimeterOK”.
    • Print the expected value of “getPerimeterOK”.
    • Print the value of “getAreaOK”.
    • Print the expected value of “getAreaOK”.
    • Create an object “o”.
    • If the condition is true,
      • Set the object “o”
      • Print the x value.
      • Print the y value.
      • Print the width.
      • Print the height.
    • If the object “o” is not equal to “null”.
      • Print the area using “actual”.
      • Print the expected value.
      • Print the perimeter using “actual”.
      • Print the expected value.