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java: ArrayList - how can i check if an index exists?
...uite satisfy me .. if I want to do something in the list if the index is already there, but otherwise to prep it.. with a new list I'm going to start at index = 0 and my list.size() == 0 too. so the first time I check it will be true & I'll prep the list to do stuff. but the next time at that in...
How to add extension methods to Enums
... something better. Remember to check the values are in range too.
You can read more here at Microsft MSDN.
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Android Studio: how to attach Android SDK sources?
... SDK in search and studio will help you to take to right place.
You can read the description, says mostly what to do.
So after clicking on "show package details" you will see whether sources are installed or not (as shown in below picture) if it is not installed do install and you are good.
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Can Go compiler be installed on Windows?
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Despite the fact that Go is only two days old, this question has already become a FAQ on the Go mailinglist. (Unfortunately, it has not yet been added to the FAQ list on the website.)
Basically, Go is done by a very small group of people, so they simply do not have the time nor the resource...
Create a .csv file with values from a Python list
...is a good solution to the problem, and would make it more useful to future readers with similar, but not identical, questions. Please edit your answer to add explanation, and give an indication of what limitations and assumptions apply.
– Toby Speight
Jul 5 '1...
A simple explanation of Naive Bayes Classification
...lity for RED: 20 / 60
Having formulated our prior probability, we are now ready to classify a new object (WHITE circle in the diagram below). Since the objects are well clustered, it is reasonable to assume that the more GREEN (or RED) objects in the vicinity of X, the more likely that the new case...
Best practices/performance: mixing StringBuilder.append with String.concat
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Use + operator is best practice, it is also simple and readable.
The Java language provides special support for the string
concatenation operator ( + ), and for conversion of other objects to
strings. String concatenation is implemented through the
StringBuilder(or Stri...
Is it possible to program iPhone in C++
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Short answer, yes, sort of. You can use Objective-C++, which you can read about at Apple Developer Connection.
If you know C++ already, learning Objective-C would be pretty simple, if you decided to give that a try. More info on that topic is at the ADC as well.
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Submitting a form by pressing enter without a submit button
... there's just one thing about visibility: hidden: as you can read in w3schools, visibity:none still affects the layout. If you want to avoid this whitespace, the solution with absolute positioning seems to be better for me.
– loybert
Sep 28 '12 at...
How do I find which rpm package supplies a file I'm looking for?
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To know the package owning (or providing) an already installed file:
rpm -qf myfilename
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