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RESTful call in Java
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If you are calling a RESTful service from a Service Provider (e.g Facebook, Twitter), you can do it with any flavour of your choice:
If you don't want to use external libraries, you can use java.net.HttpURLConnection or java...
Why can't we autowire static fields in spring?
...r. Also you cannot create several instances of a given class, each with a different dependency being injected (because the field is implicitly shared and creates global state - also evil).
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Difference between StringBuilder and StringBuffer
What is the main difference between StringBuffer and StringBuilder ?
Is there any performance issues when deciding on any one of these?
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What is the difference between ? and Object in Java generics?
...Say you want to write a method that accepts maps from Strings to anything: If you would write
public void foobar(Map<String, Object> ms) {
...
}
you can't supply a HashMap<String, String>. If you write
public void foobar(Map<String, ?> ms) {
...
}
it works!
A thing s...
Why isn't Python very good for functional programming? [closed]
...not to say that it's bad, just that you have to work harder than you would if you switched to a language that promotes functional programming or switched to writing OO Python.
Here are the functional things I miss in Python:
Pattern matching
Tail recursion
Large library of list functions
Function...
Correct format specifier for double in printf
What is the correct format specifier for double in printf? Is it %f or is it %lf ? I believe it's %f , but I am not sure.
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What's the difference between CSS classes .foo.bar (without space) and .foo .bar (with space) [dupli
Would you please explain me the difference between these two CSS classes syntax:
5 Answers
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How to copy a directory using Ant
...How do you copy the contents of a directory using Ant". There is a subtle difference.
– cmcginty
Jan 26 '13 at 0:41
"t...
Why doesn't height: 100% work to expand divs to the screen height?
...as to set both html and body as height: 100% (As well as of course the specific div I want to inherit the 100% height)
– james
Jan 13 '15 at 6:34
1
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std::unique_ptr with an incomplete type won't compile
...f std::unique_ptr with incomplete types. The problem lies in destruction.
If you use pimpl with unique_ptr, you need to declare a destructor:
class foo
{
class impl;
std::unique_ptr<impl> impl_;
public:
foo(); // You may need a def. constructor to be defined elsewhere
~foo...