Java - Calculate Mean

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Here is the Java Source to calculate mean for a given set of numbers.

Source Code

import java.io.*;

class CalcMean {

    public static void main(String[] args) {

            String inpstring = "";

            InputStreamReader input = new InputStreamReader(System.in);

            BufferedReader reader = new BufferedReader(input);

            try

            {

                  System.out.print("Enter a Number Elements to calculate Mean:");

                  inpstring = reader.readLine();

                  long max = Long.parseLong(inpstring);

                  long[] arrElements = new long[100];

                  for (int i = 0; i < max; i++)

                  {

                        System.out.print("Enter [" + (i + 1) + "] Element: ");

                        inpstring = reader.readLine();

                        arrElements[i] = Long.parseLong(inpstring);

                  }

                  double total = 0;

                  for(int i = 0; i < max; i++)

                  {

                        total += arrElements[i];

                  }

                  double mean = total / max;

                  System.out.println("Mean: " + mean);

            }

            catch (Exception e)

            {

                  e.printStackTrace();

            }

    }

}

Output

D:\Program Files\Java\jdk1.6.0_23\bin>java CalcMean

Enter a Number Elements to calculate Mean:5

Enter [1] Element: 10

Enter [2] Element: 20

Enter [3] Element: 20

Enter [4] Element: 10

Enter [5] Element: 30

Mean: 18.0