Epoch Java

gistfile1.txt

package PrinFoodPlus.Utils;

import PrinFoodPlus.Controller;
import javafx.application.Platform;
import javafx.scene.control.Alert;
import javafx.scene.control.ButtonType;

import java.text.ParseException;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Optional;
import java.util.TimeZone;

public class PrinFoodUtils {

   public static String getEpochToDay(int daysAhead) {
      Calendar cal = Calendar.getInstance();
      cal.setTimeZone(TimeZone.getTimeZone("CST"));
      cal.set(Calendar.HOUR_OF_DAY, 0);
      cal.set(Calendar.MINUTE, 0);
      cal.set(Calendar.SECOND, 0);
      cal.set(Calendar.MILLISECOND, 0);
      cal.add(Calendar.DATE, daysAhead);
      return String.valueOf(cal.getTimeInMillis());
   }

   public static long convertDateToEpoch(String date) {
      Calendar cal = null;
      try {
         cal = Calendar.getInstance();
         cal.setTimeZone(TimeZone.getTimeZone("CST"));
         cal.setTime(new SimpleDateFormat("MM/dd/yyyy").parse(date));
         cal.set(Calendar.HOUR_OF_DAY, 0);
         cal.set(Calendar.MINUTE, 0);
         cal.set(Calendar.SECOND, 0);
         cal.set(Calendar.MILLISECOND, 0);
      } catch (ParseException e) {
         e.printStackTrace();
      }
      return cal.getTimeInMillis();
   }

   public static String decapitalize(String string) {
      if (string == null || string.isEmpty())
         return string;
      char c[] = string.toCharArray();
      c[0] = Character.toLowerCase(c[0]);
      return new String(c);
   }

   public static Runnable confirmClosingAction() {
      return () -> {
         if (Controller.madeChanges) {
            Alert alert = new Alert(Alert.AlertType.CONFIRMATION);
            alert.setTitle("Close without committing?");
            alert.setHeaderText("You're about to close without committing\nany of your changes.");
            alert.setContentText("Are you sure you want to exit without\ncommitting changes?");

            Optional<ButtonType> result = alert.showAndWait();
            if (result.isPresent() && result.get() == ButtonType.OK) {
               Platform.exit();
               System.exit(0);
            }
         } else {
            System.exit(0);
         }
      };
   }

}