6. Sets of data values of type double are to be read. There is no invalid value

Question

6. Sets of data values of type double are to be read. There is no invalid value available that could be used as a sentinel. Therefore, each value of type double is followed on the same line by an int value.
The int is equal to 0 except that on the last line of each dataset, the int is equal to 1 to signal the end of that dataset. For example:
13.3 0
-97.2 0
34.6 0
76.2 1 ? End of dataset #1
56.0 0 ? Beginning of next dataset
Write a public static method readOneDataset that will read in one dataset of double values, store the values into an array parameter dA[], and return the number of values read. In the example above, the method would read and store 13.3,
-97.2, 34.6, and 76.2 into dA[0] through dA[3], and return the value 4 . (The int values are discarded.) The method must check that the array dA[] is large enough and terminate if not; do not do any other defensive programming.
This is only an example; your method must be general!

public static int readOneDataset(Scanner scan, double[] dA)
{

Explanation / Answer

please rate - thanks

your example didn't have a prompt, so I didn't provide one

import java.util.*;
public class main
{
public static void main(String [] args)
{Scanner in=new Scanner(System.in);
double []a=new double[20];
int n=readOneDataset(in,a);
System.out.println("You read the numbers: ");
for(int i=0;i<n;i++)
    System.out.print(a[i]+" ");
    System.out.println();
   }
public static int readOneDataset(Scanner scan, double[] dA)
{int i=0,n;
while(i<dA.length)
    {dA[i]=scan.nextDouble();
    if(scan.nextInt()==1)
          return i+1;
    i++;
    }
return i;
}
}

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