Chapter 10, Problem 7PE

Program Plan Intro

Shipping cost

Program plan:

Filename: “InsuredPackage.java”

• Define of “InsuredPackage” class
  • Define constructor
    • Call the “super” method
    • Declare the constant variables with the values.
    • Check “getCost ()” is less than “LOWCOST”
      • Set “i” is “LOWINS”
    • Check “getCost ()” is less than “MEDCOST”
      • Set “i” is “MEDINS”
    • Otherwise, set “i” is “HIGHINS”
    • Call the “increaseCost()” method.

Filename: “Package.java”

• Define the “Package” class
  • Declare the required private variables
  • Define the parameterized constructor
    • Set the values
    • Call the method
  • Define the “calculateCost” method
    • Declare the variable
    • Check “w” is less than “LOWWT”
      • Check “m” is equal to “AIR”
        • Set “c” is “LOWAIR”
      • Otherwise, check “m” is equal to “TRUCK”
        • Set “c” is “LOWTRUCK”
      • Otherwise, set “c” is “LOWMAIL”
        • • Check “w” is less than “MEDWT”
            • Check “m” is equal to “AIR”
              • Set “c” is “MEDAIR”
            • Otherwise, check “m” is equal to “TRUCK”
              • Set “c” is “MEDTRUCK”
            • Otherwise, set “c” is “MEDMAIL”
          • Check “w” is less than “HIGHWT”
            • Check “m” is equal to “AIR”
              • Set “c” is “HIGHAIR”
            • Otherwise, check “m” is equal to “TRUCK”
              • Set “c” is “HIGHTRUCK”
            • Otherwise, set “c” is “HIGHMAIL”
          • Return the value
  • Define the “display” method
    • Display the result
  • Define the “getCost” method
    • Return the cost
  • Define the “increaseCost” method
    • Calculate the cost value

Filename: “UsePackage.java”

• Define the “UsePackage” class
  • Define the main method
    • Create three objects for “Package” class with different values
    • Create three objects for “InsuredPackage” class with different values
    • Call the “display” method with different objects of “Package” and “InsuredPackage” classes.