Initial data commit

Task/Date-manipulation/Java/date-manipulation.java

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+import java.time.*;
+import java.time.format.*;
+
+class Main {
+  public static void main(String args[]) {
+    String dateStr = "March 7 2009 7:30pm EST";
+
+    DateTimeFormatter df = new DateTimeFormatterBuilder()
+				.parseCaseInsensitive()
+				.appendPattern("MMMM d yyyy h:mma zzz")
+				.toFormatter();
+		
+    ZonedDateTime after12Hours = ZonedDateTime.parse(dateStr, df).plusHours(12);
+
+    System.out.println("Date: " + dateStr);
+    System.out.println("+12h: " + after12Hours.format(df));
+
+    ZonedDateTime after12HoursInCentralEuropeTime = after12Hours.withZoneSameInstant(ZoneId.of("CET"));
+    System.out.println("+12h (in Central Europe): " + after12HoursInCentralEuropeTime.format(df));
+  }
+}