Compare Date object with a TimeStamp in Java

Question

When I test this code:

java.util.Date date = new java.util.Date();
java.util.Date stamp = new java.sql.Timestamp(date.getTime());

assertTrue(date.equals(sta         


        

Answer 1

Nican explained the equals part, about compareTo:

• Timestamp has a compareTo(Date) method that converts it to Timestamp internally
• Date does the comparison by downcasting (since Timestamp is a subclass of it); but as the javadoc states: "The inheritance relationship between Timestamp and java.util.Date really denotes implementation inheritance, and not type inheritance"

Which of course is an horrible idea, in my opinion.