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What is the meaning of “… …” token? i.e. double ellipsis operator on parameter pack
... meaning to _ArgTypes..., ..., i.e. a variadic template expansion followed by a C-style varargs list.
Here's a test supporting that theory… I think we have a new winner for worst pseudo-operator ever.
Edit: This does appear to be conformant. §8.3.5/3 describes one way to form the parameter list...
What's wrong with using == to compare floats in Java?
...ichaelPiefel it already says: "depending on the desired precision". Floats by their nature are kind of like physical values: you're only interested in some limited number of positions depending on the total inaccuracy, any differences beyond that are considered moot.
– ivan_poz...
Connect Java to a MySQL database
...rly old way of doing things. The better way is to get a DataSource, either by looking one up that your app server container already configured for you:
Context context = new InitialContext();
DataSource dataSource = (DataSource) context.lookup("java:comp/env/jdbc/myDB");
or instantiating and conf...
Structs versus classes
... reason about.
Are objects on the heap and the stack processed equally by the garbage collector?
No, they are not the same because objects on the stack are the roots of the collection. The garbage collector does not need to ever ask "is this thing on the stack alive?" because the answer to tha...
increment date by one month
...
This does break sometimes. The answer by @jason is technically more correct since it accounts for things like leap years, month lengths, and so on. That should be marked as the correct answer.
– skift
Aug 15 '15 at 6:32
...
How do you get the “object reference” of an object in java when toString() and hashCode() have been
...says:
As much as is reasonably practical, the hashCode method defined by class Object does return distinct integers for distinct objects. (This is typically implemented by converting the internal address of the object into an integer, but this implementation technique is not required by the Jav...
What is @ModelAttribute in Spring MVC?
...on"
Then you can have Spring MVC supply this object to a Controller method by using the @ModelAttribute annotation:
public String processForm(@ModelAttribute("person") Person person){
person.getStuff();
}
On the other hand the annotation is used to define objects which should be part of a Mod...
Check a radio button with javascript
...# for identifier) with native JS.
Native JS solution:
document.getElementById("_1234").checked = true;
JQuery solution:
$("#_1234").prop("checked", true);
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What's the difference between OpenID and OAuth?
...ntication, that is, letting a third-party authenticate your users for you, by using accounts they already have. The term federated is critical here because the whole point of OpenID is that any provider can be used (with the exception of white-lists). You don't need to pre-choose or negotiate a deal...
Git rebase fails, 'Your local changes to the following files would be overwritten by merge'. No loca
... imageUploader: {
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