adding DATEANDTIME.java

Java/Introduction/DATEANDTIME.java

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+Knowledge of Calender Class in Java
+/**
+ * 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.
+ * <p>
+ * You are given a date. You just need to write the method, , which returns the day on that date. To simplify your task, we have provided a portion of the code in the editor.
+ * <p>
+ * For example, if you are given the date , the method should return  as the day on that date.
+ * <p>
+ * image
+ * <p>
+ * Input Format
+ * <p>
+ * A single line of input containing the space separated month, day and year, respectively, in    format.
+ * <p>
+ * Constraints
+ * <p>
+ * Output Format
+ * <p>
+ * Output the correct day in capital letters.
+ * <p>
+ * Sample Input
+ * <p>
+ * 08 05 2015
+ * Sample Output
+ * <p>
+ * WEDNESDAY
+ * Explanation
+ * <p>
+ * The day on August th  was WEDNESDAY.
+ */
+import java.io.*;
+import java.util.*;
+import java.time.LocalDate;
+public class DATEANDTIME 
+{
+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[] MultipleInput = bufferedReader.readLine().replaceAll("\\s+$", "").split(" ");
+
+     int month = Integer.parseInt(MultipleInput[0]);
+
+     int day = Integer.parseInt(MultipleInput[1]);
+
+     int year = Integer.parseInt(MultipleInput[2]);
+
+     String res = FIND_DAY.findDay(month, day, year);
+
+     bufferedWriter.write(res);
+     bufferedWriter.newLine();
+
+     bufferedReader.close();
+     bufferedWriter.close();
+}
+}
+class FIND_DAY{
+
+    public static String findDay(int month, int day, int year) {
+        Calendar c = Calendar.getInstance();//creating instance of abstract class calender
+        c.set(year, month, day);//calender format is set to yyyy-mm-dd
+        return LocalDate.of(year, month, day).getDayOfWeek().toString();//we are using LocalDate Class (immutable)with format set to yyyymmdd using method LocalDate.of(int,int,int)
+
+
+    }
+
+}