RetailItem Exception Program Plan: RetailItem.java: Declare the class “RetailItem”. Declare the private variable “desp” as “string”. Declare the private variable “units” as “int”. Declare the private variable “price” as “double”. Initialize the constructor “RetailItem”. Assign “desp” as empty string. Assign “units” as “0”. Assign “price” as”0.0”. Initialize the parameterized constructor “RetailItem”. Assign “desp” as “d”. Assign “units” as “u”. Assign “price” as “p”. Mutator function “setDesp()” Assign “desp” to “d”. Mutator function “setUnits()”. Check whether the “u” is greater than “0” Throw the exception. Otherwise, assign “u” to “units”. Mutator function “setPrice()”. Check whether the “p” is greater than “0” Throw the exception. Otherwise, assign “p” to “price”. Define the accessor function “getDesp()”, “getUnits()” and “getPrice()”. NegativeUnitsException.java: Definition for “NegativeUnitsException” Definition for non-parameterized constructor. Print the statement. Definition for parameterized constructor Print the statement. NegativePriceException.java: Definition for “NegativePriceException” Definition for non-parameterized constructor. Print the statement. Definition for parameterized constructor Print the statement. RetailDemo.java: Import the required packages. Definition for “RetailDemo” class. Definition for main class. Declare the required variables. Create an object for scanner class. Create a retail item object. Get the description from the user. Set the item description. Get the items units. Inside the try block, Set the item units. Assign “true” to “input.” Inside the catch block, Print the error Assign “false” to “input”. Get the items price. Inside the try block, Set the item price. Assign “true” to “input.” Inside the catch block, Print the error Assign “false” to “input”. Print the description, price and units of the item.

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Chapter 11, Problem 3PC

Program Plan Intro

RetailItem Exception

Program Plan:

RetailItem.java:

Declare the class “RetailItem”.

Declare the private variable “desp” as “string”.

Declare the private variable “units” as “int”.

Declare the private variable “price” as “double”.

Initialize the constructor “RetailItem”.

Assign “desp” as empty string.

Assign “units” as “0”.

Assign “price” as”0.0”.

Initialize the parameterized constructor “RetailItem”.

Assign “desp” as “d”.

Assign “units” as “u”.

Assign “price” as “p”.

Mutator function “setDesp()”

Assign “desp” to “d”.

Mutator function “setUnits()”.

Check whether the “u” is greater than “0”

Throw the exception.

Otherwise, assign “u” to “units”.

Mutator function “setPrice()”.

Check whether the “p” is greater than “0”

Throw the exception.

Otherwise, assign “p” to “price”.

Define the accessor function “getDesp()”, “getUnits()” and “getPrice()”.

NegativeUnitsException.java:

Definition for “NegativeUnitsException”

Definition for non-parameterized constructor.

Print the statement.

Definition for parameterized constructor

Print the statement.

NegativePriceException.java:

Definition for “NegativePriceException”

Definition for non-parameterized constructor.

Print the statement.

Definition for parameterized constructor

Print the statement.

RetailDemo.java:

Import the required packages.

Definition for “RetailDemo” class.

Definition for main class.

Declare the required variables.

Create an object for scanner class.

Create a retail item object.

Get the description from the user.

Set the item description.

Get the items units.

Inside the try block,

Set the item units.

Assign “true” to “input.”

Inside the catch block,

Print the error

Assign “false” to “input”.

Get the items price.

Inside the try block,

Set the item price.

Assign “true” to “input.”

Inside the catch block,

Print the error

Assign “false” to “input”.

Print the description, price and units of the item.

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