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Task2412
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‎3.JavaMultithreading/src/com/javarush/task/task24/task2412/Solution.java‎

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package com.javarush.task.task24.task2412;
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import java.text.ChoiceFormat;
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import java.text.Format;
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import java.text.MessageFormat;
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import java.text.SimpleDateFormat;
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import java.util.*;
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/*
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Знания - сила!
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*/
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public class Solution {
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public static void main(String[] args) {
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List<Stock> stocks = getStocks();
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sort(stocks);
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Date actualDate = new Date();
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printStocks(stocks, actualDate);
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}
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public static void printStocks(List<Stock> stocks, Date actualDate) {
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SimpleDateFormat dateFormat = new SimpleDateFormat("dd-MM-yyyy");
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double[] filelimits = {0d, actualDate.getTime()};
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String[] filepart = {"change {4}", "open {2} and last {3}"};
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ChoiceFormat fileform = new ChoiceFormat(filelimits, filepart);
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Format[] testFormats = {null, null, dateFormat, fileform};
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MessageFormat pattform = new MessageFormat("{0} {1} | {5} {6}");
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pattform.setFormats(testFormats);
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for (Stock stock : stocks) {
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String name = ((String) stock.get("name"));
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String symbol = (String) stock.get("symbol");
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double open = !stock.containsKey("open") ? 0 : ((double) stock.get("open"));
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double last = !stock.containsKey("last") ? 0 : ((double) stock.get("last"));
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double change = !stock.containsKey("change") ? 0 : ((double) stock.get("change"));
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Date date = (Date) stock.get("date");
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Object[] testArgs = {name, symbol, open, last, change, date, date.getTime()};
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System.out.println(pattform.format(testArgs));
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}
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}
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public static void sort(List<Stock> list) {
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list.sort(new Comparator<Stock>() {
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public int compare(Stock stock1, Stock stock2) {
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int compare;
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return (compare = compareName(stock1, stock2)) != 0 ? compare
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: (compare = compareDate(stock1, stock2)) != 0 ? compare
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: compareProfit(stock1, stock2);
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}
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private int compareName(Stock stock1, Stock stock2) {
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String name1 = ((String) stock1.get("name"));
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String name2 = ((String) stock2.get("name"));
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return name1.compareTo(name2);
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}
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private int compareDate(Solution.Stock stock1, Solution.Stock stock2) {
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long oneDay = 24 * 60 * 60 * 1000;
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Long d1 = ((Date) stock1.get("date")).getTime() / oneDay;
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Long d2 = ((Date) stock2.get("date")).getTime() / oneDay;
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return d2.compareTo(d1);
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}
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private int compareProfit(Stock stock1, Stock stock2) {
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int profit1 = getProfitPercentage(stock1);
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int profit2 = getProfitPercentage(stock2);
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return profit2 - profit1;
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}
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private int getProfitPercentage(Stock stock) {
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double res;
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if (stock.containsKey("change")) {
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res = !stock.containsKey("change") ? 0 : ((double) stock.get("change"));
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} else if (stock.containsKey("open") && stock.containsKey("last")) {
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double open = ((double) stock.get("open"));
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double last = ((double) stock.get("last"));
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res = last - open;
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} else {
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throw new RuntimeException("Incorrect data");
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}
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return (int) (res * 1000);
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}
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});
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}
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public static class Stock extends HashMap<String, Object> {
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public Stock(String name, String symbol, double open, double last) {
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put("name", name);
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put("symbol", symbol);
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put("open", open);
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put("last", last);
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put("date", getRandomDate(java.time.LocalDate.now().getYear() + 1));
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}
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public Stock(String name, String symbol, double change, Date date) {
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put("name", name);
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put("symbol", symbol);
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put("date", date);
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put("change", change);
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}
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}
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public static List<Stock> getStocks() {
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List<Stock> stocks = new ArrayList<>();
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stocks.add(new Stock("Fake Apple Inc.", "AAPL", 125.64, 123.43));
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stocks.add(new Stock("Fake Cisco Systems, Inc.", "CSCO", 25.84, 26.3));
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stocks.add(new Stock("Fake Google Inc.", "GOOG", 516.2, 512.6));
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stocks.add(new Stock("Fake Intel Corporation", "INTC", 21.36, 21.53));
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stocks.add(new Stock("Fake Level 3 Communications, Inc.", "LVLT", 5.55, 5.54));
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stocks.add(new Stock("Fake Microsoft Corporation", "MSFT", 29.56, 29.72));
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stocks.add(new Stock("Fake Nokia Corporation (ADR)", "NOK", .1, getRandomDate()));
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stocks.add(new Stock("Fake Oracle Corporation", "ORCL", .15, getRandomDate()));
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stocks.add(new Stock("Fake Starbucks Corporation", "SBUX", .03, getRandomDate()));
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stocks.add(new Stock("Fake Yahoo! Inc.", "YHOO", .32, getRandomDate()));
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stocks.add(new Stock("Fake Applied Materials, Inc.", "AMAT", .26, getRandomDate()));
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stocks.add(new Stock("Fake Comcast Corporation", "CMCSA", .5, getRandomDate()));
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stocks.add(new Stock("Fake Sirius Satellite", "SIRI", -.03, getRandomDate()));
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return stocks;
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}
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public static Date getRandomDate() {
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return getRandomDate(1970);
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}
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public static Date getRandomDate(int startYear) {
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int year = startYear + (int) (Math.random() * 30);
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int month = (int) (Math.random() * 12);
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int day = (int) (Math.random() * 28);
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GregorianCalendar calendar = new GregorianCalendar(year, month, day);
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return calendar.getTime();
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}
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}
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‎3.JavaMultithreading/src/com/javarush/task/task24/task2412/Условие.jrtc‎

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taskKey="com.javarush.task.task24.task2412"\n\nЗнания - сила!
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1. В методе sort написать компаратор для Stock:
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1.1. Первичная сортировка по name в алфавитном порядке
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1.2. Вторичная сортировка по дате без учета часов, минут, секунд (сверху самые новые), потом по прибыли от положительных к отрицательным
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... open 125,64 and last 126,74 - тут прибыль = 126,74-125,64
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... open 125,64 and last 123,43 - тут прибыль = 123,43-125,64
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2. Разобраться с *Format-ами и исправить IllegalArgumentException. Подсказка - это одна строчка.
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Пример вывода:
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Fake Apple Inc. AAPL | 16-03-2027 open 125,64 and last 123,43
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Fake Applied Materials, Inc. AMAT | 15-01-1983 change 0,26
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Требования:
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1. Во время работы программы не должны возникать исключения.
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2. Программа должна выводить данные на экран.
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3. Метод sort должен корректно сортировать полученный список в соответствии с условием задачи.
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4. Класс Solution.Stock должен быть публичным.
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