5
What happens here? Why is an instance of Date in this example:
String dataFormatada = new Date().format("dd/MM/yyyy")
Already in this example was not used the new:
def data = Date.parse('dd/MM/yyyy', '31/12/1980')
When I should wear the new or not?
6
You need to use the new always instantiate a class, that is, create a new instance of a given object. In this case, when you create a new instance of Date it already comes with the current date.
In the example
def data = Date.parse('dd/MM/yyyy', '31/12/1980')
You are not creating a new instance of Date and that’s why you don’t need to use the new. The parse is a static method, which returns an object of the type Date. In that case, he gets a String and the format of it and returns (returns) the Date referent.
5
@Aline, do not use new in def data = Date.parse('dd/MM/yyyy', '31/12/1980'), for Date#parse(String, String) is a static method not a constructor, and looking at the class Date, this method returns an instance of Date removal of an object Calendar by the method Calendar#getTime.
2
String dataFormated = new Date(). format("dd/MM/yyyy")
A String dataFormatada is receiving today’s date in "dd/MM/yyyy format";
def data = Date.parse('dd/MM/yyyy', '31/12/1980')
data is receiving the value '31/12/1980'. As you already have the date, you do not need the new.
new Date() will return today’s date to you, and the format is to format the way you want it.
Ah, that’s all there is to it?
Yes. New Date will return today’s date to you. and the format is to format the way you want it.
got it. Thank you!
for nothing. it is a pleasure to help.
okay. Thanks. Does that apply to other examples as well? How to set a name of a person etc?
there’s another way for me to talk to you? durtto
@AlineGonz http://chat.stackexchange.com/rooms/11910/estouro-de-pilha
Aline, wait a moment. Don’t choose yet. Maybe we gave you a wrong context.
I think it got a little shallow, maybe if you dug a little deeper it would be better
the second does not use new because it is a static method of the class(Static). It was a response that I got about def data = Date.parse('dd/MM/yyyy', '31/12/1980') so we didn’t use the new. and there?
Static methods can be accessed directly from the class, not from an object, @Aline.
okay Gustavo, I get it.
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I think if I made a merge of that answer with that of durtto it would be quite complete :)
– Math
The jbueno has already edited his :D
– Gustavo Cinque