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Solving a “communications link failure” with JDBC and MySQL [duplicate]
...ent web sites, but non of them worked. Finally I changed my code and found out what was the problem. I'll try to tell you about different approaches and sum them up here.
While I was seeking the internet to find the solution for this error, I figured out that there are many solutions that worked fo...
Why does String.valueOf(null) throw a NullPointerException?
...he easy "fix" is to cast the null explicitly to Object as follows:
System.out.println(String.valueOf((Object) null));
// prints "null"
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How does polymorph ambiguity distinction work?
Which overload will get selected for null in Java?
Moral of the story
There are several im...
How can I have Github on my own server?
Is there anything out there like Github that is for your own local server? I am curious if there is like a PHP script or even a desktop client that mimics Github's functionality, I love Github but it would be nice to host on my own server.
...
Closure in Java 7 [closed]
...se provide me with some reliable references from where I can learn stuff about closures?
7 Answers
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symbol(s) not found for architecture i386
...de help search too. Search for one of the symbols, doing your best to work out the unmangled name (e.g., SCNetworkReachabilityGetFlags), and then the first documentation link you find at developer.apple.com is often the right one. You usually don't have to hunt very far. In this case, that's this pa...
What are file descriptors, explained in simple terms?
...system creates an entry to represent that file and store the information about that opened file. So if there are 100 files opened in your OS then there will be 100 entries in OS (somewhere in kernel). These entries are represented by integers like (...100, 101, 102....). This entry number is the fil...
Git repository broken after computer died
...went dead and now one of my git repositories is broken. When I try to checkout master it tells me:
15 Answers
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Post JSON using Python Requests
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It turns out I was missing the header information. The following works:
url = "http://localhost:8080"
data = {'sender': 'Alice', 'receiver': 'Bob', 'message': 'We did it!'}
headers = {'Content-type': 'application/json', 'Accept': 'te...
Why are Where and Select outperforming just Select?
...ement is the bottleneck in your program, in my experience rewriting it without LINQ will always make it faster than any of the various LINQ methods.
So, your LINQ workflow should look like this:
Use LINQ everywhere.
Profile.
If the profiler says LINQ is the cause of a bottleneck, rewrite that pie...
How exactly do Django content types work?
...n various applications. For example, let's say we pulled the Comment model out into it's own app named chatterly. Now we want to create another application named noise_nimbus where people store their music to share with others.
What if we want to add comments to those songs? Well, we can just draw ...