Hello Programmers, In this post, you will know how to solve the Java Date and Time HackerRank Solution. This problem is a part of the HackerRank Java Programming Series.
One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.
Java Date and Time HackerRank Solution
Objective
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, get day , which returns the day on that date. To simplify your task, we have provided a portion of the code in the editor.
Example
Example
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.
Java Date and Time HackerRank Solutions
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);
String dayOfWeek = cal.getDisplayName(Calendar.DAY_OF_WEEK, Calendar.LONG, Locale.US).toUpperCase();
return dayOfWeek;
}
}
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();
}
}
Disclaimer: The above Problem (Java Date and Time) is generated by Hackerrank but the Solution is Provided by BrokenProgrammers. This tutorial is only for Educational and Learning purposes.
