GasPumpApp
TopsolutionsCSC139 Chapter 6 Lab Assignments (1)
Methods
Objectives
In this lab assignment, students will learn:
- How to define methods and functions
- How to call methods or functions
- How to specify parameters and how to pass arguments by value
Goals
In this lab assignment, students will demonstrate the abilities to:
- Define methods and functions
- Call methods or functions
- Specify parameters and pass arguments by value
Grading
- Design and create a GUI (20 pts)
- Create correct event handler methods (30 pts)
- Define and call methods or functions correctly (30 pts)
- The program can be compiled and executed without error (20 pts)
In this lab assignment, you will create a “Gas Pump” application. A gas pump calculates the cost of gas based on the grade of gas. The station charges
· $2.69 per gallon for Regular grade gas
· $2.79 per gallon for Special grade gas
· $2.89 per gallon for Super grade gas
· Create a windows form application that simulates the functionality of the gas pump.
· The user enters the number of gallons to purchase in a TextBox.
· Click the desired grade button (each grade is represented by a Button whose Text properties are set to Regular, Special and Super).
· The total cost will be calculated and displayed on the form.
· In each Button’s Click event handler methods –
o Read user’s input from TextBox.
o Call a function to calculate total cost by passing number of gallons and grade of gas. The grade of gas can be retrieved from the Text property of each Button.
o Display the total cost on the form.
· Define a function to calculate total cost. This function
o Requests the values of number of gallonsand grade of gas (“Regular”, “Special” or “Super”).
o Calculates total cost.
o Returns the total cost.
12 years ago
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gaspumpapp.zip
