Q4 - Stock Open Close Price on Particular Weekdays (www.hackerrank.com)

openAndClosePrices.java

import java.io.*;
import java.util.*;
import java.text.*;
import java.math.*;
import java.util.regex.*;
import java.net.*;
import com.google.gson.*;
    
//------  My code  -----------
import java.io.InputStreamReader;
import java.net.URL;
import java.time.DayOfWeek;
import java.time.LocalDate;
import java.time.Month;
import java.time.format.DateTimeFormatter;
import java.time.temporal.TemporalAdjusters;

public class Solution {
    /*
     * Complete the function below.
     */
    class Result {
        int page;
        int per_page;
        int total;
        int total_pages;
        List<Data> data;

    }

    class Data {
        String date;
        float open;
        float close;
        float high;
        float low;
    }

    static void openAndClosePrices(String firstDate, String lastDate, String weekDay) {
        LocalDate startDay = LocalDate.of(2000, Month.JANUARY, 5);
        LocalDate endDay = LocalDate.of(2014, Month.JANUARY, 1);
        DateTimeFormatter timeFormat = DateTimeFormatter.ofPattern("d-MMMM-yyyy", Locale.ENGLISH);
        //
        try{
            LocalDate date01 = LocalDate.parse(firstDate, timeFormat);
            LocalDate date02 = LocalDate.parse(lastDate, timeFormat);
            LocalDate tempDate;
            String[] contWeekDays = {"Monday","Tuesday","Wednesday","Thursday","Fryday","Saturday","Sunday"};
            
            if (date01.isBefore(startDay)) {
                date01 = startDay;}
            if (date02.isAfter(endDay)) {
                date02 = endDay;}
            
            if(!Arrays.asList(contWeekDays).contains(weekDay)){
                System.out.println("Out of parameters.");
            } else{
                do {
                    tempDate = date01.with(TemporalAdjusters.nextOrSame(DayOfWeek.valueOf(weekDay.toUpperCase())));
                    URL dataEntry = new URL("https://jsonmock.hackerrank.com/api/stocks/?date="+timeFormat.format(tempDate));
                    InputStreamReader reader = new InputStreamReader(dataEntry.openStream());
                    Result result = new Gson().fromJson(reader, Result.class);

                    if ( result.total == 0){
                        date01 = tempDate.plusWeeks(1);
                    }else {
                        for (Data datas : result.data) {
                            System.out.println(datas.date + " " + datas.open + " " + datas.close);
                            date01 = tempDate.plusWeeks(1);
                        } 
                    }
                }while (date01.isBefore(date02));
            }
        } catch (Exception ex){}   
    }

//----  End of my code ----

    public static void main(String[] args){
        Scanner in = new Scanner(System.in);
        String _firstDate;
        try {
            _firstDate = in.nextLine();
        } catch (Exception e) {
            _firstDate = null;
        }
        
        String _lastDate;
        try {
            _lastDate = in.nextLine();
        } catch (Exception e) {
            _lastDate = null;
        }
        
        String _weekDay;
        try {
            _weekDay = in.nextLine();
        } catch (Exception e) {
            _weekDay = null;
        }
        
        openAndClosePrices(_firstDate, _lastDate, _weekDay);
        
    }
}