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Java Java Data Structures - Retired Getting There Class Review

Daiane Silva
Daiane Silva
5,668 Points
Posted by Daiane Silva
Daiane Silva
5,668 Points

Why use the Date Class if is deprecated??

Why should we learn the Class Date if is deprecated, wouldn't be better to use the Class Calendar?

1 Answer

Alan Michels
Alan Michels
15,645 Points
Alan Michels
Alan Michels
15,645 Points

If you look carefully at the second to last constructor that Craig is showing in the documentation you will see that it is NOT deprecated. It uses Date(long Date). He first uses the epoch converter to get the date in milliseconds. Then he passes it in as new Date(1421849732000). The integer number was too long so he had to use a "long " integer. The long integer was 1421849732000L. For most computers an integer is 32 binary digits and 64 binary digits for long integers. Really 31 and 63 so you can have positive and negative numbers.