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In this post, you will find the solution for Input and Output in Java-HackerRank Problem. We are providing the correct and tested solutions of coding problems present on HackerRank. If you are not able to solve any problem, then you can take help from our Blog/website.
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Introduction To Java
JAVA was developed by James Gosling at Sun Microsystems Inc in the year 1991, later acquired by Oracle Corporation. It is a simple programming language. Java makes writing, compiling, and debugging programming easy. It helps to create reusable code and modular programs.
Java is a class-based, object-oriented programming language and is designed to have as few implementation dependencies as possible. A general-purpose programming language made for developers to write once run anywhere that is compiled Java code can run on all platforms that support Java. Java applications are compiled to byte code that can run on any Java Virtual Machine. The syntax of Java is similar to c/c++.
Link for the Problem – Java Date and Time – Hacker Rank Solution
Java Date and Time – Hacker Rank 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 – Hacker Rank 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);
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();
}
}
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