ProgBasics06For-Loop-Y03oddEvenPosition

import java.text.DecimalFormat;
import java.util.Scanner;

public class Y03oddEvenPosition {
        public static void main(String[] args) {
            Scanner scanner = new Scanner(System.in);
            int n = Integer.parseInt(scanner.nextLine());
            double oddSum = 0;
            double oddMin = 1000000000.0;
            double oddMax = -1000000000.0;
            double evenSum = 0;
            double evenMin = 1000000000.0;
            double evenMax = -1000000000.0;

            for (int i = 1; i <= n; i++) {
                double number = Double.parseDouble(scanner.nextLine());
                if (i % 2 == 1) {    //odd
                    oddSum += number;
                    if (number > oddMax) oddMax = number;
                    if (number < oddMin) oddMin = number;
                } else {         //even
                    evenSum += number;
                    if (number > evenMax) evenMax = number;
                    if (number < evenMin) evenMin = number;
                }
            }
            DecimalFormat df = new DecimalFormat("#.###");
//        System.out.println(df.format(2.00000));   // output 2
            if (n == 0) System.out.printf("OddSum=0, OddMin=No, OddMax=No, EvenSum=0, EvenMin=No, EvenMax=No");
            else if (n == 1) System.out.printf("OddSum=%s, OddMin=%s, OddMax=%s, EvenSum=0, EvenMin=No, EvenMax=No",
                    df.format(oddSum), df.format(oddMin), df.format(oddMax));
            else System.out.printf("OddSum=%s, OddMin=%s, OddMax=%s, EvenSum=%s, EvenMin=%s, EvenMax=%s",
                        df.format(oddSum), df.format(oddMin),    df.format(oddMax),
                        df.format(evenSum), df.format(evenMin), df.format(evenMax));
        }
    }