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  1. Prepare
  2. Java
  3. Introduction
  4. Java Date and Time
  5. Discussions

Java Date and Time

  • vladimiraslan
     + 3 comments

    You say importing a library is not allowed but yet, you need to import 

    java.util.Calendar

    and 

    java.util.Locale

    at least :)

    By the way, here is my solution (Java 7):

    import java.util.*;

public class Solution {
    public static String getDay(String day, String month, String year) {
        Calendar cal = Calendar.getInstance();
        cal.set(Integer.valueOf(year), (Integer.valueOf(month) - 1), Integer.valueOf(day));
        return cal.getDisplayName(Calendar.DAY_OF_WEEK,Calendar.LONG, Locale.getDefault()).toUpperCase();
    }
}