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make arrayList.toArray() return more specific types
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What if we have ArrayList<Animal> and it contains Dog and Cat types that extend Animal? Seems like it would fail if the first element is Dog and the next is Cat. It sees the first element, creates an array of type Dog, adds the dog then tries to add the cat a...
No appenders could be found for logger(log4j)?
...valid.
That guide will give you some information about how to use loggers and appenders.
Just to get you going you have two simple approaches you can take.
First one is to just add this line to your main method:
BasicConfigurator.configure();
Second approach is to add this standard log4j.pro...
Resource interpreted as Document but transferred with MIME type application/zip
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That fixes Chrome, but breaks other browsers. My Android phones won't download from that kind of link.
– Betty
Aug 28 '15 at 11:20
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Replacing H1 text with a logo image: best method for SEO and accessibility?
...o.png" alt="Stack Overflow" />
</a>
</h1>
title in href and img to h1 is very, very important!
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How to describe “object” arguments in jsdoc?
...bject member which is option ? I mean my user object should have username, and can have full name. so how do I specify that full name is optional
– Yash Kumar Verma
Apr 13 at 9:25
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Storing R.drawable IDs in XML array
...ID in the form of R.drawable.* inside an array using an XML values file, and then retrieve the array in my activity.
5 An...
TCP vs UDP on video stream
I just came home from my exam in network-programming, and one of the question they asked us was "If you are going to stream video, would you use TCP or UDP? Give an explanation for both stored video and live video-streams" . To this question they simply expected a short answer of TCP for stored vid...
Xcode 4.5 Storyboard 'Exit'
I have just installed Xcode 4.5 for iOS6 support, and I have seen a new icon called 'Exit' in my Storyboard, listed under my view controllers along with 'First Responder' etc. A little green icon labeled 'Exit'.
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How to find which rspec test is taking so long
One (or a couple) of our tests are taking forever and we'd like to optimize them.
1 Answer
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What is an example of the simplest possible Socket.io example?
So, I have been trying to understand Socket.io lately, but I am not a supergreat programmer, and almost every example I can find on the web (believe me I have looked for hours and hours), has extra stuff that complicates things. A lot of the examples do a bunch of things that confuse me, or connect ...