Vowels and Consonants Program Plan: The details of “VowelConsCounter” class are shown below: In the “main()” method, Declare the required variable. Read the input from the user. Create an object for Scanner class. Create an object for VowelCons class. The do...while loop executes until “e” character. If yes, Get the user's selection and the assign into selection. Match the selection case is “a”. If yes, call getNumVowels() method to display number of vowels and exit the loop. Match the selection case is “b”. If yes, call getNumConsonants() method to display number of consonants and exit the loop. Match the selection case is “c”. If yes, call getNumVowels() and getNumConsonants() method to display number of vowels and consonants and exit the loop. Match the selection case is “d”. If yes, get another input from user. In the “getMenuSelection()” method, Declare the required variables. Create an object for Scanner class. Display the menus to user. Read the input selection from user. The while loop executes until the input choice. If yes, Display the error message. Return the user choice. The details of “VowelCons” class is shown below: Declare the variable to set a list of the vowels. Declare the variable to set a list of the consonants. Declare the required variables. Define the parameterized constructor to call countVowelsAndCons() method. Define the getNumVowels() method to return the number of vowels. Define the getNumConsonants() method to return the number of consonants. In the countVowelsAndCons() method, The for loop executes until the length of vowels. If yes, determine the character at position is equal to vowels. Check whether the character is not vowel. If yes, determine the character at position is equal to consonants.

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Chapter 9, Problem 4PC

Program Plan Intro

Vowels and Consonants

Program Plan:

The details of “VowelConsCounter” class are shown below:

In the “main()” method,

Declare the required variable.

Read the input from the user.

Create an object for Scanner class.

Create an object for VowelCons class.

The do...while loop executes until “e” character. If yes,

Get the user's selection and the assign into selection.

Match the selection case is “a”. If yes, call getNumVowels() method to display number of vowels and exit the loop.

Match the selection case is “b”. If yes, call getNumConsonants() method to display number of consonants and exit the loop.

Match the selection case is “c”. If yes, call getNumVowels() and getNumConsonants() method to display number of vowels and consonants and exit the loop.

Match the selection case is “d”. If yes, get another input from user.

In the “getMenuSelection()” method,

Declare the required variables.

Create an object for Scanner class.

Display the menus to user.

Read the input selection from user.

The while loop executes until the input choice. If yes,

Display the error message.

Return the user choice.

The details of “VowelCons” class is shown below:

Declare the variable to set a list of the vowels.

Declare the variable to set a list of the consonants.

Declare the required variables.

Define the parameterized constructor to call countVowelsAndCons() method.

Define the getNumVowels() method to return the number of vowels.

Define the getNumConsonants() method to return the number of consonants.

In the countVowelsAndCons() method,

The for loop executes until the length of vowels. If yes, determine the character at position is equal to vowels.

Check whether the character is not vowel. If yes, determine the character at position is equal to consonants.

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