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Book/movie review
22/08/2022
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In this activity, you will revisit the Paint program from Module Six. Your original program calculated the amount of paint needed, but depending on the width and height, that value could be a long decimal. Your program will better suit the needs of the user if it can calculate the number of cans needed as an integer value. For example, given that 1 gallon = 1 can of paint, we might expect the Paint program from Module Six to output:
Paint needed: 2.142857142857143 gallons
Cans needed: 3.0 can(s)
You might at first think that you could just cast the gallonsPaintNeeded variable from a double to an integer type. However, that would merely cut off the decimal portion of the value, resulting in an underestimate of the number of cans needed. You might also consider rounding the number, but that would not work for the sample output provided above since normal rounding rules would suggest 2.0 cans, an underestimate. So, the computational problem you are faced with is to calculate the number of cans and round up to the nearest whole number. In order to determine if that method for rounding up exists as part of one of Java’s core classes, we need to consult the documentation. There might be a single method that we can use or we might have to use more than one method.
For this assignment, you will complete the Paint program by adding code that calculates the number of cans of paint needed. Use the Uploading Files to Eclipse and the Downloading Files From Eclipse tutorials to help you with this project.
Input:Input:Input:Input:30
257.5
22.820
3525.4
21.6Output:Output:Output:Output:Paint needed: 2.142857142857143 gallons
Cans needed: 3.0 can(s)Paint needed: 0.48857142857142855 gallons
Cans needed: 1.0 can(s)Paint needed: 2.0 gallons
Cans needed: 2.0 can(s)Paint needed: 1.5675428571428571 gallons
Cans needed: 2.0 can(s)
Attach your completed Paint2.java file to the assignment submission page.
CriteriaProficient (100%)Needs Improvement (75%)Not Evident (0%)
ValueMethod SelectionSelects a method that appropriately handles all test casesMeets some “Proficient” criteria but with errors, such as not handling all test casesDoes not attempt criterion65Method ImplementationUses the selected method such that the accurate value is calculated and output to the user is correctMeets some “Proficient” criteria, but with errors or exclusionsDoes not attempt criterion35Total:100%
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