CODEWITHSUNDEEP
c#arrays
Janelle
Janelle

Reputation: 38

How to display highest and lowest of an array

here i ask the user for homework scores which are then averaged after discarding the smallest and largest score. i have stored the user input in an array. in my DisplayResults method im not sure how to display the lowest and highest scores that were discarded. any help is appreciated! Here is what i have so far:

class Scores
{
    static void Main(string[] args)
    {
        double sum = 0;
        double average = 0;
        int arraySize;
        double[] inputValues;

        arraySize = HowManyScores();

        inputValues = new double[arraySize];
        GetScores(inputValues);
        sum = CalculateSum(inputValues);
        average = CaculateAverage(sum, arraySize);

        DisplayResults(inputValues, average);
        Console.Read();
    }

    public static int HowManyScores()
    {
        string input;
        int size;
        Console.WriteLine("How many homework scores would you like to enter?");
        input = Console.ReadLine();
        while (int.TryParse(input, out size) == false)
        {
            Console.WriteLine("Invalid data. Please enter a numeric value.");
            input = Console.ReadLine();
        }

        return size;
    }

    public static void GetScores(double[] inputValues)
    {
        double scoreInput;
        Console.Clear();

        for (int i = 0; i < inputValues.Length; i++)
        {
            scoreInput = PromptForScore(i + 1);
            inputValues[i] = scoreInput;
        }
    }

    public static double PromptForScore(int j)
    {
        string input;
        double scoreInput;

        Console.WriteLine("Enter homework score #{0}:", j);
        input = Console.ReadLine();

        while (double.TryParse(input, out scoreInput) == false)
        {
            Console.WriteLine("Invalid Data. Your homework score must be a numerical value.");
            input = Console.ReadLine();
        }

        while (scoreInput < 0)
        {
            Console.WriteLine("Invalid Data. Your homework score must be between 0 and 10.");
            input = Console.ReadLine();
        }

        while (scoreInput > 10)
        {
            Console.WriteLine("Invalid Data. Your homework score must be between 0 and 10.");
            input = Console.ReadLine();
        }

        return scoreInput;
    }

    public static double CalculateSum(double[] inputValues)
    {
        double sum = 0;
        for (int i = 1; i < inputValues.Length - 1; i++)
        {
            sum += inputValues[i];
        }

        return sum;
    }

    public static double CaculateAverage(double sum, int size)
    {
        double average;
        average = sum / ((double)size - 2);
        return average;
    }

    public static void DisplayResults(double[] inputValues, double average)
    {
        Console.Clear();
        Console.WriteLine("Average homework score: {0}", average);

        //Console.WriteLine("Lowest score that was discarded: {0}",
        //Console.WriteLine("Highest score that was discarded: {0}",
    }
}

}

Upvotes: 0

Views: 1483

Answers (1)

raute
raute

Reputation: 105

You basically only have to do one thing: Sorting the array after you received your input data. Then, printing the first and last value gives you the minimal and maximal score. Use

Array.Sort(intArray);

in main after calling GetScores and

 Console.WriteLine("Lowest score: {0} Highest score: {1}", 
    inputValues[0], inputValues[inputValues.Length - 1]);

to print the results. Cheers

EDIT: The proposal by Jens from the comments using the Min/Max is probably more what you're looking for if you're not interested in complete ordering of your values.

Upvotes: 1

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