1994 Gas Prices Program Plan: GasWeek.java: Declare the class “GasWeek”. Declare required variables. Declare the constructor. Initialize the variables with the values. Give the accessor methods to get the week number, month, and price. Main.java: Import the required packages. Declare the class “Main”. Declare an array to store the month names. Declare the “main ()” method. Declare required variables. Create an array list. Open the file. Set the current month index value to the variable “currentMonth”. Read the file using “while” condition. Get the string. Increment the value of “weekcount”. Add the value to the array list. Close the file. Call the function “displayLowestPrice ()” to display the lowest price value. Call the function “displayHighestPrice ()” to display the highest price value. Call the function “displayAveragePrice ()” to display the average price value. Give function definition for “displayLowestPrice ()”. Create an object for the class. Loop through the array list. Check if the price is low. Set the lowest price. Print the value. Give function definition for “displayHighestPrice ()”. Create an object for the class. Loop through the array list. Check if the price is high. Set the highest price. Print the value. Give function definition for “displayAveragePrice ()”. Declare required variables. Get the current month. Loop through the array list. Create an object for the class. Increment the counter variable. Check if the month is a current month Calculate the total price. Else, Calculate average. Print the average value. Assign 0 to “count” and “total”. Assign “g.getMonth ()” to “currentMonth”.

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Chapter 7, Problem 12PC

Program Plan Intro

1994 Gas Prices

Program Plan:

GasWeek.java:

Declare the class “GasWeek”.

Declare required variables.

Declare the constructor.

Initialize the variables with the values.

Give the accessor methods to get the week number, month, and price.

Main.java:

Import the required packages.

Declare the class “Main”.

Declare an array to store the month names.

Declare the “main ()” method.

Declare required variables.

Create an array list.

Open the file.

Set the current month index value to the variable “currentMonth”.

Read the file using “while” condition.

Get the string.

Increment the value of “weekcount”.

Add the value to the array list.

Close the file.

Call the function “displayLowestPrice ()” to display the lowest price value.

Call the function “displayHighestPrice ()” to display the highest price value.

Call the function “displayAveragePrice ()” to display the average price value.

Give function definition for “displayLowestPrice ()”.

Create an object for the class.

Loop through the array list.

Check if the price is low.

Set the lowest price.

Print the value.

Give function definition for “displayHighestPrice ()”.

Create an object for the class.

Loop through the array list.

Check if the price is high.

Set the highest price.

Print the value.

Give function definition for “displayAveragePrice ()”.

Declare required variables.

Get the current month.

Loop through the array list.

Create an object for the class.

Increment the counter variable.

Check if the month is a current month

Calculate the total price.

Else,

Calculate average.

Print the average value.

Assign 0 to “count” and “total”.

Assign “g.getMonth ()” to “currentMonth”.

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