AndyBowes

class Stack<T>{
    val elements: MutableList<T> = mutableListOf()
    fun isEmpty() = elements.isEmpty()
    fun count() = elements.size
    fun push(item: T) = elements.add(item)
    fun pop() : T? {
        val item = elements.lastOrNull()
        if (!isEmpty()){
            elements.removeAt(elements.size -1)
        }

mscharhag

import java.time.*;
import java.time.format.DateTimeFormatter;
import java.time.format.FormatStyle;
import java.time.temporal.ChronoUnit;
import java.time.temporal.TemporalAdjusters;
import java.util.*;

import static java.time.temporal.TemporalAdjusters.*;

public class Java8DateTimeExamples {