Word Counter Program Plan: The detail of “WordCounterDemo” class is shown below: In the “main()” method, Declare the required variable. Read the input from the user. Get the string from input box by call the wordCount() method to count the word. Display the count of the word in message box. Exit the program. In the “wordCount()” method, Read the words using a space delimiter. Return the number of words in string.

Question

In a shopping cart, there are various items, which can either belong to the category of household items or electronic items. The following UML diagram illustrates the relationship between items, household items, and electronic items. //Implementation Class public class ShoppingCart{ public static void main(String[] args){ final int MAX_ITEM = 50; Item cart = new Item[MAX_ITEM]; addItem(cart); // populate the item array printItem(cart); } } Considering that all the data definition classes and the implementation class are complete, which of the following Object-Oriented Programming (OOP) concepts do you need to use in the above context? i) Polymorphism ii) Method Overloading iii) Method Overriding iv) Dynamic Binding v) Abstract Class Explain, using course terminology, how you would use any of the above concepts to model the given scenario.

Answer 1

Question

Chapter 9, Problem 2PC

Program Plan Intro

Word Counter

Program Plan:

The detail of “WordCounterDemo” class is shown below:

In the “main()” method,

Declare the required variable.

Read the input from the user.

Get the string from input box by call the wordCount() method to count the word.

Display the count of the word in message box.

Exit the program.

In the “wordCount()” method,

Read the words using a space delimiter.

Return the number of words in string.

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