Question

1. Create a class level one-dimensional double array named SalesArray[ ]. 

2. In the “Load File” button open the Sales.txt file and: 

a. Load the sales data into the SalesArray[ ] with the sales data from the Sales.txt file.  Create the array at the class level so it is available to the other methods. 

b. Create the following methods and then call them from inside the “Load File” button:

    i. Create method PopulateListBox that will accept as an argument a one- dimensional double array that will then load the data from the array passed as  an argument into the listbox with the format “$xxx,xxx.xx” such as  “$247,850.00”

    ii. Create method CalcAverageSales that will accept as an argument a onedimensional douoble array that will then calculate the average sales from the  data from the array passed as an argument and put the result in lblAverage  displayed as currency with two decimal places, example: $206,280.79

    iii. Create method FindHighestSales that will accept as an argument a onedimensional double array that will then find the highest sales from the data  from the array passed as an argument and put the result in lblHighest displayed  as currency with zero decimal places, example: $264,448

    iv. Create method FindLowestSales that will accept as an argument a onedimensional double array that will then find the lowest sales from the data from  the array passed as an argument and put the result in lblLowest displayed as  currency with zero decimal places, example: $109,872.