Tubes

import java.text.DecimalFormat;
import java.time.LocalDate;
import java.util.Locale;
import java.util.Scanner;
import java.util.regex.Matcher;

public class Tubes {
    public static void main(String[] args) {
        Locale.setDefault(Locale.ROOT);
        Scanner scan = new Scanner(System.in);

        int volume = Integer.parseInt(scan.nextLine());
        int p1Debit = Integer.parseInt(scan.nextLine());
        int p2Debit = Integer.parseInt(scan.nextLine());
        double hours = Double.parseDouble(scan.nextLine());

        double totalVolume = (p1Debit + p2Debit) * hours;

        if (totalVolume <= volume){
            int p1Percent = (int)((p1Debit * hours) / totalVolume * 100);
            int p2Percent = (int)((p2Debit * hours) / totalVolume * 100);

            int volPercent = (int)(totalVolume / volume * 100);

            System.out.printf("The pool is %d%% full. Pipe 1: %d%%. Pipe 2: %d%%.",
                    volPercent, p1Percent, p2Percent);
        }
        else{
            double extraWater = totalVolume - volume;

            String ew = fmt(extraWater);
            DecimalFormat format = new DecimalFormat("#0.##############");
            String h = fmt(hours);
            System.out.printf("For %s hours the pool overflows with %s liters.", h, format.format(extraWater));
        }
    }

    public static String fmt(double d)
    {
        if(d == (long) d)
            return String.format("%d",(long)d);
        else
            return String.format("%s",d);
    }
}