Java Date and Time Hackerrank Solution
The Calendar class is an abstract class that provides methods for converting between a specific instant in time and a set of calendar fields such as YEAR, MONTH, DAY_OF_MONTH, HOUR, and so on, and for manipulating the calendar fields, such as getting the date of the next week.
You are given a date. You just need to write the method, getDay, which returns the day on that date. To simplify your task, we have provided a portion of the code in the editor.
Example
month=8
day=14
year=2017
The method should return MONDAY as the day on that date.
Function Description
Complete the findDay function in the editor below.
findDay has the following parameters:
- int: month
- int: day
- int: year
Returns
- string: the day of the week in capital letters
Input Format
A single line of input containing the space separated month, day and year, respectively, in MM DD YYYY format.
Constraints
- 2000<year<3000
Sample Input
08 05 2015
Sample Output
WEDNESDAY
Explanation
The day on August 5th 2015 was WEDNESDAY
.
Code Solution:
//Java Date and Time Hackerrank Solution import java.io.*; import java.math.*; import java.security.*; import java.text.*; import java.util.*; import java.util.concurrent.*; import java.util.regex.*; class Result { /* * Complete the 'findDay' function below. * * The function is expected to return a STRING. * The function accepts following parameters: * 1. INTEGER month * 2. INTEGER day * 3. INTEGER year */ public static String findDay(int month, int day, int year) { Calendar cal = Calendar.getInstance(); cal.set(Calendar.MONTH, month-1); cal.set(Calendar.DAY_OF_MONTH, day); cal.set(Calendar.YEAR, year); return cal.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.US).toUpperCase(); } } public class Solution { public static void main(String[] args) throws IOException { BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(System.in)); BufferedWriter bufferedWriter = new BufferedWriter(new FileWriter(System.getenv("OUTPUT_PATH"))); String[] firstMultipleInput = bufferedReader.readLine().replaceAll("\\s+$", "").split(" "); int month = Integer.parseInt(firstMultipleInput[0]); int day = Integer.parseInt(firstMultipleInput[1]); int year = Integer.parseInt(firstMultipleInput[2]); String res = Result.findDay(month, day, year); bufferedWriter.write(res); bufferedWriter.newLine(); bufferedReader.close(); bufferedWriter.close(); } } //Java Date and Time Hackerrank Solution