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Thread: Need this to end when a negative number is entered

  1. #1
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    Default Need this to end when a negative number is entered

    I'm hung up here on how to get this to end when a negative number is entered. I want the user to enter 10 integers into an array. After those are entered, the program will sum and average the data. Inputs and outputs use JOptionPane. When a negative number is entered, the program should end. That's where I'm stuck. The while statement is what I can't seem to figure out. Any pointers? Have I given enough information for what I am asking?

    import java.text.NumberFormat;
    import java.text.DecimalFormat;
    import javax.swing.*;
     
    public class Array
    {
        public static void main(String args[])
        {
            int checkNumber =0;
            int inputArray[] = new int[10]; 
            int arrayLength = inputArray.length;
            Boolean keepRunning = new Boolean (true);
     
                for(int i=0;i<arrayLength;i++) 
                checkNumber = Integer.parseInt(JOptionPane.showInputDialog("Enter integer for array location "+i+" :")); 
     
                while (checkNumber>=0)
            {
                int sum = 0;
                String loc = "";
     
                for(int i=0; i<arrayLength; i++)
                {
                    sum+= inputArray[i];
                    loc+= "Array location " + i + " is " + inputArray[i] + "\n";
                }
     
                 double avg;
                 NumberFormat formatter = new DecimalFormat ("#0.000");
                 avg =(double)sum/10;
     
     
                 JOptionPane.showMessageDialog (null, loc + "The sum or the array is " + sum + "\n The average of the array is " + formatter.format(avg));
             } 
     
     
         }       
     
    }


  2. #2
    Administrator copeg's Avatar
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    Default Re: Need this to end when a negative number is entered

    if ( checkNumber < 0 ){
    return;
    }

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