Hello and welcome to our community! Is this your first visit?
Enjoy an ad free experience by logging in. Not a member yet? Register.
Results 1 to 3 of 3
  1. #1
    New to the CF scene
    Join Date
    Nov 2012
    Thanked 0 Times in 0 Posts

    numbers programming

    I've only just started java and I am trying to to make a program so that when a any line of digits are added it prints the count N for the numbers (how many numbers are in the line), the minumum and maximum of the line of numbers, their sum, and the average of all the numbers. Each of these specifications has to be printed on a new line.
    The program has a to be called NumberFor
    >NumberFor 22.0 42.5 15.2 -2 6

    Currently I have:

    public class NumberFor {
    public static void main(String[] args) {

    double value = Double.parseDouble(args[0]);
    double sum = 0.0;

    //count N

    // first value read initialized min and max
    double max = StdIn.readDouble();
    double min = max;

    // read in the data, keep track of min and max
    if (value > max) max = value;
    if (value < min) min = value;

    System.out.println(+ min);
    System.out.println(+ max);

    // sum of values
    double N = Double.parseDouble(args[0]);
    for (double i = 0.0; i < N; i++) {
    sum += value;

    System.out.println(+ sum);

    double cnt = 0;
    while (!StdIn.isEmpty()){
    sum += value;
    cnt ++;
    double average = sum / cnt;
    System.out.println(+ average);


    and the only output i can get to work is the max

  2. #2
    Supreme Master coder! Philip M's Avatar
    Join Date
    Jun 2002
    London, England
    Thanked 2,704 Times in 2,680 Posts
    This is the JavaScript forum. Java and Javascript are entirely different programming languages, in spite of the confusingly similar names. Rather like Austria and Australia! Ask a mod to move this thread to the right forum.

    All the code given in this post has been tested and is intended to address the question asked.
    Unless stated otherwise it is not just a demonstration.

  3. #3
    God Emperor Fou-Lu's Avatar
    Join Date
    Sep 2002
    Saskatoon, Saskatchewan
    Thanked 2,668 Times in 2,637 Posts
    This is a bit unusual; you are working off of input for the application command, but you do not appear to use any additional methods or object types. Casting and parsing isn't IMO something that should be learned before method handling.
    The trick here is to simply ensure you have a double[] or Double[] to work with.
    PHP Code:
            double[] dValues = new double[args.length];
            for (
    int i 0args.length; ++i)
    dValues[i] = Double.parseDouble(args[i]);
    Simple as that. You now work with only dValues to collect the information about the count, max/min (easy via sorting a copy), average, sum, whatever you want.

    Also, in the future please use [php][/php] or [code][/code] tags as it preserves the formatting.


Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts