Write a class that analyzes data you have stored in a text file. Your data represents the ages of the individuals in your fictitious community. The data is stored, one per line, in a text file. For example,
File name:
myData.txt
Contents:
45
18
6.5
3
5
sdtypo#
18
10
The number of lines in your text file must fall somewhere
between 20 and 100 lines. Some of the lines must hold character
strings that are not convertible to integers, with at least one
being a decimal number and one being a random sequence of
characters. (Let us think of these as typos or bad data). Your
class' constructor must open your file for scanning. It must pull
the data one line at a time. If the line holds bad data (or an
integer that is less than 0 or greater than 120), it should throw
an exception, print an error message to the console, skip the bad
data, and continue scanning your file without crashing. The ages
(i.e., good data) that you encounter should be stored in an array
list that is a private instance variable of your class.
Your class must contain an instance method that return the average
age of your population.
public double averageAge(){
//..
}
Your class must contain an instance method that returns the highest age of your population.
public int highestAge(){
//..
}
Your class must contain an instance method that returns the lowest age of your population.
public int lowestAge(){
//..
}
Your class must contain an instance method that takes as input an integer lower bound and an integer upper bound and returns the percentage of individuals whose age falls between the lower bound and the upper bound, inclusively.
public double percentBetween(int lowerBound, int upperBound){
//..
}
Use exception handing to catch (without crashing) those situations where the user's supplied values for upperBound and lowerBound are illegal (e.g., if the user's lower bound is greater than the upper bound).
Write a tester to test your class. Your tester must allow the user to evaluate the above 4 methods by asking your program for the average age, the lowest age, the highest ages, and the fraction of your population whose age falls between a user-supplied upper bound and lower bound.
We need at least 10 more requests to produce the answer.
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Write a class that analyzes data you have stored in a text file. Your data represents...
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