Taking Scanner Data and transposing into Array-CodePudding

Got this assignment with the purpose to withdraw a minimum, maximum, and average score from various inputs. Right now I'm focused on the aspect of taking scanner data and putting it into the array, because I think I know how to make the flags and get an average.

public class BattingAverage
{
    public static void main(String args[])
    {
        Scanner s = new Scanner(System.in);
        // named constant for array size here
        int arraySize = 8

        //array
        double[] avg;

        // Use this integer variable as your loop index. (Given in the assignment)
        int loopIndex; 

        // Use this variable to store the batting average input by user. (Also Given)
        double battingAverage = 0;

        // String version of batting average input by user. (Given)
        String averageString; 

        // Use these variables to store the minimum and maximum batting averages. (Given)
        double min, max;

        // Use these variables to store the total and the average. (Given)
        double total, average; 

        // I wrote these statements to get user input and then store it in the "avg" array
        
           System.out.println("Enter a batting average: ");
        
           averageString  = s.nextLine();
           battingAverage = Double.parseDouble(averageString);
           for (double x = 0; x<8; x  ) {
               battingAverage = Scanner.nextDouble();
               avg[0] = battingAverage;
               avg[1] = battingAverage;
               avg[2] = battingAverage;
               avg[3] = battingAverage;
               avg[4] = battingAverage;
               avg[5] = battingAverage;
               avg[6] = battingAverage;
               avg[7] = battingAverage;
           }

My comprehension of the code is that the print and scanner prompt the inputs, the strings are converted into doubles, then the for loop indexes the user inputs. I think that I need to put if/else statements around each "avg[x] = battingAverage" statement so that it doesn't try to save the first input at each index, but I'm also getting the error message "non-static method nextDouble() cannot be referenced from a static context" in this line

"battingAverage = Scanner.nextDouble();"

CodePudding user response：

On this line:

battingAverage = Scanner.nextDouble();

When you refer to Scanner, you are referring to the class Scanner and all of the static methods on it. nextDouble() is a member level method of Scanner similar to nextLine(); it can only be called on an instance of class Scanner. If you change it to s.nextDouble() that compilation error should go away.

CodePudding user response：

When you refer to the indexes of an array, the value used as the index doesn't have to be a constant.

So you can, for example, say:

int x = 1;
avg[x] = someNumber;

Does that give you any ideas for simplifying the code inside your for loop?