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A programmer notices that the following code snippet uses the same algorithm for computing cost after taxes, but with different variables, in the two places as shown below, and in several other places in the program. What could be done to improve the program? final double TAXRATE1 = final double TAXRATE2 = 5.5; double subtotal = price (1 + TAXRATE1) / 100; 10; double total = subtotal + shipping * (1 + TAXRATE2) / 100; Declare the tax rates as variables, not constants. Define a method that looks up tax rates for goods and shipping charges. Define a method that computes the cost after taxes from arguments for the cost before taxes and the tax rate. Define a method that prompts the user for an amount and a tax rate, then returns the total amount including the tax.

A programmer notices that the following code snippet uses the same algorithm for computing cost after taxes, but with different variables, in the two places as shown below, and in several other places in the program. What could be done to improve the program? final double TAXRATE1 = final double TAXRATE2 = 5.5; double subtotal = price (1 + TAXRATE1) / 100; 10; double total = subtotal + shipping * (1 + TAXRATE2) / 100; Declare the tax rates as variables, not constants. Define a method that looks up tax rates for goods and shipping charges. Define a method that computes the cost after taxes from arguments for the cost before taxes and the tax rate. Define a method that prompts the user for an amount and a tax rate, then returns the total amount including the tax.

Database System Concepts
Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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A programmer notices that the following code snippet uses the same algorithm for computing cost after taxes, but with different variables, in the two places as shown below, and in several other places in the program. What could be done to improve the program? final double TAXRATE1 = final double TAXRATE2 = 5.5; double subtotal = price (1 + TAXRATE1) / 100; 10; double total = subtotal + shipping * (1 + TAXRATE2) / 100; Declare the tax rates as variables, not constants. Define a method that looks up tax rates for goods and shipping charges. Define a method that computes the cost after taxes from arguments for the cost before taxes and the tax rate. Define a method that prompts the user for an amount and a tax rate, then returns the total amount including the tax.
Transcribed Image Text:A programmer notices that the following code snippet uses the same algorithm for computing cost after taxes, but with different variables, in the two places as shown below, and in several other places in the program. What could be done to improve the program? final double TAXRATE1 = final double TAXRATE2 = 5.5; double subtotal = price (1 + TAXRATE1) / 100; 10; double total = subtotal + shipping * (1 + TAXRATE2) / 100; Declare the tax rates as variables, not constants. Define a method that looks up tax rates for goods and shipping charges. Define a method that computes the cost after taxes from arguments for the cost before taxes and the tax rate. Define a method that prompts the user for an amount and a tax rate, then returns the total amount including the tax.
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