java, javafx, android and spring programing collection

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java standard edition

addObject arraylist bufferedreader colors comparator createTable datatypes date enum generateHTML hashmap inheritance insertSQL interface JSONfromWEB jsoup list loop pointMatrix queue readCSV regex sqlToObject stack static super treemap updateTable writeCSV

java FX

3DCharacterMoving 3DMaterialList DroneMotor FlowPane Hello KeyCode KeyMovement ObservableList Pane RotateImage rotateSphere

android

APIview listview ToastTimer touchMovement WriteReadFile

spring framework

HelloWorld RESTful TomcatServlet

java objects

Apple

ObservableList 2022-06-17 21:24:43

tags: fx observablelist lessons view source

date 2022-06-15 04:09:31

add a Object with title and date to a linkedlist

tags: se oop list view source

comparator 2022-06-15 04:07:47

compare date and sort from list collection

tags: se oop comparator date collection list view source

date

screenshot

description

source code

import java.util.Objects;
import java.util.LinkedList;
import java.util.List;
import java.util.Collections;
import java.text.SimpleDateFormat;
import java.util.Date;
import java.text.ParseException;
import java.util.*;

public class Main
{
	public static void main(String []artgs)
	{
		List<Event> eventliste = new LinkedList<>();
		
		eventliste.add(new Event("Halloween", "22/11/2020"));
		eventliste.add(new Event("birthday", "9/9/2020"));
		eventliste.add(new Event("silverster", "1/2/2020"));
		eventliste.add(new Event("christmas", "5/1/2020"));
		eventliste.add(new Event("birthday", "12/10/2020"));
		
		Event.checkWinter(eventliste);
	}
}

class Event
{
	String EventName;
	String EventDatum;
	
	Event(String EventName, String EventDatum)
	{
		this.EventName = Objects.requireNonNull(EventName,"EventName can not be Null");
		this.EventDatum = Objects.requireNonNull(EventDatum, "EventDatum can not be Null");
	}
	
	
	public String getEventName()
	{
			return EventName;

}
	
	
	public String getEventDatum()
	{
			return EventDatum;
	}
	
	
	public static void checkWinter(List<Event> eventliste)
	{
		for (Event event : eventliste)
		{
			Date a = null;

try 
			{
				a = new SimpleDateFormat("dd/MM/yyyy").parse(event.getEventDatum());  
			} 
			
			catch (ParseException e) 
			{
				System.err.println("leck eier");
			}
			
			Calendar calendar = Calendar.getInstance();
			calendar.setTime(a);
			
			int currentMONTH = calendar.get(Calendar.MONTH)+1;
			int winterTIME = 8;
			
			if (currentMONTH > winterTIME)
			{
				System.out.println(event.getEventName() + " is in the winter");
			}
		}
	}
}