How do you write a test program that reads in a set of octagon side values from a file, creates an Octagon using the side, and adds them to list: ArrayList . Print the unsorted list, sort the list using java. util. Collections. sort(list), then print the sorted list(format your output). Provide exception handling for your files as well as for the input including FileNotFound exception and IllegalArgumentException. If invalid input is encountered (note highlighted data item), report the invalid value and then continue reading in the next value. With this: Algorithm for test program
Main:
declare list as ArrayList of Octagon
print Name, Lab Number, and Date
open data. txt as input
while input not EOF:
side = Double. parseDouble(input. next())
anOctagon = new Octagon(side)
list. add(anOctagon)
end while

print(list) //side, area, and perimeter for each Octagon
sort(list)
print(list) //side, area, and perimeter for each Octagon
close file
print end of program message