The document discusses the development of a menu-driven application in object-oriented programming, specifically focusing on storing employee details. It outlines essential steps, such as creating a menu, input methods, and specific operations like adding and printing employee details. Additionally, it emphasizes improving input validation and includes instructions for building and executing the application as a JAR file.

1. IT 2033
Object Oriented Programming
Menu-driven Application Development
Budditha Hettige
Department of Computer Science

2. Menu driven Program
• Common application type for the console window
• Program run until user exit from it
• User can select required options
• Use Menu (number input) to select options
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3. Steps to Develop
• Create a menu (to select options)
• Create menu option input method
• Add menu to the application
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do
Menu
getOption
While()
Switch

4. Example
• Create a menu drive application to store Employee
details (class example). Your application should
support the following menu operations.
– 1. Add new employee (Full time , Contractor or Manager)
– 2. Print all employee details
– 3. Print given employee details
– 4. Exit
_
• Example available on:
– https://budditha.wordpress.com/object-oriented-programming-java/
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5. Loop (Main)
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6. Menu
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Menu Options

7. Input Method
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• Can improve this method to avoid invalid input
– public static int getMenuOption(int Max)

8. Main Method
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Value to exit

9. Add New Employee
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Create new full time
Employee
Add new data from keyboard
Increase employee
count

10. Print All Employee Details
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F C M
3
Employee Count
Employee Array
Full time Employee
Contractor
Manager

11. Print given Employee Details
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12. More on application development
• Add error handling method(s) to avoid user errors
• Complete the application
• Build jar file (RUN →Clean and build project [Shift+F11])
• Copy jar file into another location
• Execute Jar file through the command
– Java –jar <jar_file_name>
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