Given the day, month, and year, the task is to find the corresponding day of the week using SimpleDateFormat class in Java.
Examples
Input: 11-08-2020
Output: Tuesday
Explanation: The day corresponding to the date 11-08-2020 is tuesday.
Input: 17-08-2006
Output: Thursday
Explanation: The day corresponding to the date 17-08-2006 is thursday.
Approach:
- Input the date, month, and year from the user as integer type.
- Check if the date, month, and year are in the required range. If not, raise an error message.
- Convert the input into Date type using SimpleDateFormat class.
- Format the date to the corresponding day of the week using SimpleDateFormat class.
- Print the corresponding day of the week.
Note: If you want the full name of the day (ex: Sunday, Monday), use “EEEE”. If you want the shorter version of the name of the day (ex: Sun, Mon), use “EE”.
Below is the implementation of the above approach:
Java
// Java program for the above approachimport java.util.Date;import java.text.SimpleDateFormat;import java.text.ParseException; public class GFG { public void findDay(int day, int month, int year) { String dayOfWeek = ""; boolean wrongDate = false; if (day < 1 || day > 31) { dayOfWeek += "Give day in range. "; wrongDate = true; } if (month < 1 || month > 12) { dayOfWeek += "Give month in range. "; wrongDate = true; } if (year <= 0) { wrongDate = true; dayOfWeek += "Give year in range."; } if (!wrongDate) { SimpleDateFormat dateFormatter = new SimpleDateFormat("dd-MM-yyyy"); String dateString = day + "-" + month + "-" + year; try { // Parse the String representation of date // to Date Date date = dateFormatter.parse(dateString); dayOfWeek = "Day of week on " + dateString + " : " + new SimpleDateFormat("EEEE").format( date); } catch (ParseException e) { e.printStackTrace(); } } System.out.println(dayOfWeek); } // Driver Code public static void main(String arg[]) { GFG gfg = new GFG(); gfg.findDay(17, 8, 2006); }} |
Output
Day of week on 17-8-2006 : Thursday
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