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How to create custom exceptions in Java? [closed]
...e) { super(cause); }
}
Methods that can potentially throw or propagate this exception must declare it:
public void calculate(int i) throws FooException, IOException;
... and code calling this method must either handle or propagate this exception (or both):
try {
int i = 5;
myObject.calcula...
What are all the uses of an underscore in Scala?
I've taken a look at the list of surveys taken on scala-lang.org and noticed a curious question: " Can you name all the uses of “_”? ". Can you? If yes, please do so here. Explanatory examples are appreciated.
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App can't be opened because it is from an unidentified developer
...a button saying Open Anyway, under the General tab.
You can avoid doing this by changing the options under Allow apps downloaded from:, however I would recommend keeping it at the default Mac App Store and identified developers.
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What is the direction of stack growth in most modern systems?
...on the operating system itself, but on the processor it's running on. Solaris, for example, runs on x86 and SPARC. Mac OSX (as you mentioned) runs on PPC and x86. Linux runs on everything from my big honkin' System z at work to a puny little wristwatch.
If the CPU provides any kind of choice, the A...
An async/await example that causes a deadlock
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Take a look at this example, Stephen has a clear answer for you:
So this is what happens, starting with the top-level method (Button1_Click for UI / MyController.Get for ASP.NET):
The top-level method calls GetJsonAsync (within th...
How much does it cost to develop an iPhone application? [closed]
... upvoted the estimate of 160 hours for development and 40 hours for design is fricken' high. (I'd use another phrase, but this is my first post on Stack Overflow, so I'm being good.)
Twitterrific has had 4 major releases beginning with the iOS 1.0 (Jailbreak.) That's a lot of code, much of which is...
How do you run your own code alongside Tkinter's event loop?
My little brother is just getting into programming, and for his Science Fair project, he's doing a simulation of a flock of birds in the sky. He's gotten most of his code written, and it works nicely, but the birds need to move every moment .
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Aren't promises just callbacks?
...oping JavaScript for a few years and I don't understand the fuss about promises at all.
10 Answers
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How to submit form on change of dropdown list?
I am creating a page in JSP where I have a dropdown list and once the user selects a value he has to click on the go button and then the value is sent to the Servlet.
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static files with express.js
...on, including the default behavior of serving index.html:
By default this module will send “index.html” files in response to a request on a directory. To disable this set false or to supply a new index pass a string or an array in preferred order.
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