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Thread: Average Won't Work

  1. #1
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    Default Average Won't Work

    import java.text.DecimalFormat;
    import java.util.Scanner;
    public class Average {
    	public static void main(String[] args) {
    		Scanner scan = new Scanner(System.in);
    		int value, count = 1, sum = 0;
     		double average;
     		System.out.println("Enter an int (0 to quit): ");
     		value = scan.nextInt();
     
     		while (value != 0)
     		{
      			count+= 1;
     			sum += value;
     			System.out.println("The sum so far is " + sum);
     			System.out.print("Enter an integer (0 to quit): ");
     			value = scan.nextInt();
     			average = ((double)sum) / count;
     			DecimalFormat fmt = new DecimalFormat("0.###");
     				System.out.println("Average: " + fmt.format(average));
     		 		System.out.println("Num of values entered: " + count);
     				}
     		if (value == 0){
     			System.out.println("No Average; program was terminated");
     			System.exit(value);
     	}
     		}
    	}
    Last edited by Norm; October 22nd, 2013 at 10:58 AM. Reason: Changed \ to / in end code tag


  2. #2
    Senior Member PhHein's Avatar
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    Default Re: Average Won't Work

    Do you have a question?

  3. #3
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    Default Re: Average Won't Work

    import java.text.DecimalFormat;
    import java.util.Scanner;
    public class Average {
       public static void main (String[] args) {
          int sum = 0, value, count = 0;
          double average;
          Scanner scan = new Scanner (System.in);
          System.out.print ("Enter an integer (0 to quit): ");
          value = scan.nextInt();
          while (value != 0)  // sentinel value of 0 to terminate loop
          {
             count++; 
             sum += value;
             System.out.println ("The sum so far is " + sum);
             System.out.print ("Enter an integer (0 to quit): ");
             value = scan.nextInt();
          }
          System.out.println ();
          System.out.println ("Number of values entered: " + count);
          average = (double)sum / count;
          DecimalFormat fmt = new DecimalFormat ("0.###");
          System.out.println ("The average is " + fmt.format(average));
       }
    }
    Found this from one of my projects, you could use it if you want.

  4. #4
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    Default Re: Average Won't Work

    Why won' the average work? when i enter 10 for the first number, then 20 for the second number, it returns an average of 5.

  5. #5
    Administrator copeg's Avatar
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    Default Re: Average Won't Work

    @D.K. Welcome to the forums. This forum's philosophy is to try and help posters with a question by helping them step through there logic and thought process, which can be hard without knowing a question (hence post #2). This is as opposed to saying - here's the answer (in fact doing the latter doesn't help in learning the important skill of problem solving, and in many cases would be against academic rules). This is more clearly discussed in the following article: The Problem with Spoon-feeding

    --- Update ---

    Quote Originally Posted by gotdatdough View Post
    Why won' the average work? when i enter 10 for the first number, then 20 for the second number, it returns an average of 5.
    Post your new code. Given the code fed to you above, we can only guess what the code you are using looks like (and please keep in mind my note to D.K. above)

  6. The Following User Says Thank You to copeg For This Useful Post:

    PhHein (October 23rd, 2013)

  7. #6
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    Default Re: Average Won't Work

    Quote Originally Posted by copeg View Post
    @D.K. Welcome to the forums. This forum's philosophy is to try and help posters with a question by helping them step through there logic and thought process, which can be hard without knowing a question (hence post #2). This is as opposed to saying - here's the answer (in fact doing the latter doesn't help in learning the important skill of problem solving, and in many cases would be against academic rules). This is more clearly discussed in the following article: The Problem with Spoon-feeding

    --- Update ---



    Post your new code. Given the code fed to you above, we can only guess what the code you are using looks like (and please keep in mind my note to D.K. above)
    Alright.

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