Discussion Question : ArrayList • What is the difference between arrays and ArrayList? What are the advantages and disadvantages of an ArrayList, and when should you use an ArrayList over a simple array? Discussion Question : StringBuilder • What is the difference between string and StringBuilder? What are the advantages and disadvantages of a StringBuilder, and when should you use a StringBuilder over a simple String? Individual Assignment: Write a simple commission calculation program using IDE. Modify the Week Three Java™ application using Java™ NetBeans™ IDE to meet these additional and changed business requirements: • The application will now compare the total annual compensation of at least two salespersons. • It will calculate the additional amount of sales that each salesperson must achieve to match or exceed the higher of the two earners. • The application should ask for the name of each salesperson being compared. The Java™ application should also meet these technical requirements: • The application should have at least one class, in addition to the application’s controlling class. • The source code must demonstrate the use of Array or ArrayList. • There should be proper documentation in the source code.

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PRG/420 Java Programming I - Week 4
Week Four: Fundamental Data Structures
Discussion Question : ArrayList
• What is the difference between arrays and ArrayList? What are the advantages and
disadvantages of an ArrayList, and when should you use an ArrayList over a simple array?
Discussion Question : StringBuilder
• What is the difference between string and StringBuilder? What are the advantages and
disadvantages of a StringBuilder, and when should you use a StringBuilder over a simple String?
Individual Write a simple commission calculation program using IDE.
Modify the Week Three Java™ application using Java™ NetBeans™ IDE to meet these additional and
changed business requirements:
• The application will now compare the total annual compensation of at least two
salespersons.
• It will calculate the additional amount of sales that each salesperson must achieve to
match or exceed the higher of the two earners.
• The application should ask for the name of each salesperson being compared.
The Java™ application should also meet these technical requirements:
• The application should have at least one class, in addition to the application’s controlling
class.
• The source code must demonstrate the use of Array or ArrayList.
• There should be proper documentation in the source code.
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