
Big Java Late Objects
2nd Edition
ISBN: 9781119330455
Author: Horstmann
Publisher: WILEY
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Question
Chapter 7, Problem 9PP
Program Plan Intro
Separate files for each Sale
Program plan:
Filename: “Sale.java”
- Include the required header files in the program
- Define the “Sale” class
- Declare the private variables
- Define the parameterized constructor
- Set the value
- Define the “getName” method
- Return the name
- Define the “getServiceCategory” method
- Return the service
- Define the “getAmount” method
- Return the amount
- Define the “getDate” method
- Return the date
Filename: “SalesSales.java”
- Include the required header files in the program
- Define the “SalesSales” class
- Define the “getFileName” method
- Declare the variable
- Get the filename from the user
- Iterate the loop until the loop ends the last line in the file
- Get the values
- Return the value
- Define the “readSaleEntry” method
- Declare the variable and get the values
- Separate the values using “;”
- Declare the variables and get the values
- Call the “Sale” class with the parameters and return the values
- Define the “readSalesFile” method
- Create an object for “ArrayList”
- Check filename is not equal to null
- In the “try” block, create an object for “Scanner” class
- Iterate the loop until the loop ends the last line in the file
- Add the values by calling the “readSaleEntry” method
- Iterate the loop until the loop ends the last line in the file
- Return the sales.
- Define the “gatherCategories” method
- Create an object for “ArrayList”
- Iterate the values
- Check the categories are not equal to 0
- Add the values
- Check the categories are not equal to 0
- Return the categories
- Define the “writeSale” method
- Call the “getName” method and display the name
- Call the “getServiceCategory” method and display the category
- Call the “getAmount” method and display the amount
- Call the “getDate” method and display the date
- Define the “writeCategorySalesToFile” method
- In the “try” block, create an object for “PrintWriter” class
- Iterate the values
- Check the service category is equal to category
-
- Call the “writeSale” method
- In the “catch” block, display a file not found error message
- Call the “writeSale” method
- Iterate the values
- In the “try” block, create an object for “PrintWriter” class
- Define the “writeCategorySales” method
- Iterate the values
- Call the “writeCategorySalesToFile” method
- Iterate the values
- Define the main method
- Create an object for “Scanner” class
- Call the “getFileName” method and set the value
- In the “try” block,
- Call the “readSalesFile” method and store the value in “sales” variable.
- Call the “gatherCategories” method and store the value in “categories” variable.
- Call the “writeCategorySales” method
- Display the successive message
- In the “catch” block, display a file not found error message
- In the “catch” block, display a no such element error message
- Define the “getFileName” method
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Chapter 7 Solutions
Big Java Late Objects
Ch. 7.1 - Prob. 1SCCh. 7.1 - Prob. 2SCCh. 7.1 - Prob. 3SCCh. 7.1 - Prob. 4SCCh. 7.1 - Prob. 5SCCh. 7.2 - Prob. 6SCCh. 7.2 - Prob. 7SCCh. 7.2 - Prob. 8SCCh. 7.2 - Prob. 9SCCh. 7.2 - Prob. 10SC
Ch. 7.3 - Prob. 11SCCh. 7.3 - Prob. 12SCCh. 7.3 - Prob. 13SCCh. 7.3 - Prob. 14SCCh. 7.3 - Prob. 15SCCh. 7.4 - Prob. 16SCCh. 7.4 - Prob. 17SCCh. 7.4 - Prob. 18SCCh. 7.4 - Prob. 19SCCh. 7.4 - Prob. 20SCCh. 7.4 - Prob. 21SCCh. 7.5 - Prob. 22SCCh. 7.5 - Prob. 23SCCh. 7.5 - Prob. 24SCCh. 7.5 - Prob. 25SCCh. 7.5 - Prob. 26SCCh. 7 - Prob. 1RECh. 7 - Prob. 2RECh. 7 - Prob. 3RECh. 7 - Prob. 4RECh. 7 - Prob. 5RECh. 7 - Prob. 6RECh. 7 - Prob. 7RECh. 7 - Prob. 8RECh. 7 - Prob. 9RECh. 7 - Prob. 10RECh. 7 - Prob. 11RECh. 7 - Prob. 12RECh. 7 - Prob. 13RECh. 7 - Prob. 14RECh. 7 - Prob. 15RECh. 7 - Prob. 16RECh. 7 - Prob. 17RECh. 7 - Prob. 18RECh. 7 - Prob. 1PECh. 7 - Prob. 2PECh. 7 - Prob. 3PECh. 7 - Prob. 4PECh. 7 - Prob. 5PECh. 7 - Prob. 6PECh. 7 - Prob. 7PECh. 7 - Prob. 8PECh. 7 - Prob. 9PECh. 7 - Prob. 10PECh. 7 - Prob. 11PECh. 7 - Prob. 12PECh. 7 - Prob. 1PPCh. 7 - Prob. 2PPCh. 7 - Prob. 3PPCh. 7 - Prob. 4PPCh. 7 - Prob. 5PPCh. 7 - Prob. 6PPCh. 7 - Prob. 7PPCh. 7 - Prob. 8PPCh. 7 - Prob. 9PPCh. 7 - Prob. 10PPCh. 7 - Prob. 11PPCh. 7 - Prob. 12PPCh. 7 - Prob. 13PP
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