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Why is IntelliJ 13 IDEA so slow after upgrading from version 12?

While using IntelliJ 13 ultimate edition for a week, it just seems really slow. 20 Answers ...
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How do I check if a variable exists?

I want to check if a variable exists. Now I'm doing something like this: 11 Answers 11...
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How to remove multiple indexes from a list at the same time? [duplicate]

Say I have this list here: 8 Answers 8 ...
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How to maintain a Unique List in Java?

How to create a list of unique/distinct objects (no duplicates) in Java? 7 Answers 7 ...
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How to change colors of a Drawable in Android?

I'm working on an android application, and I have a drawable that I'm loading up from a source image. On this image, I'd like to convert all of the white pixels to a different color, say blue, and then cache the resultant Drawable object so I can use it later. ...
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Purpose of Activator.CreateInstance with example?

Can someone explain Activator.CreateInstance() purpose in detail? 9 Answers 9 ...
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Android EditText delete(backspace) key event

How can I detect delete (backspace) key event for a editText? I've tried using TextWatcher, but when the editText is empty, when I press delete key, nothing happens. I want to detect delete key press foe an editText even if it has no text. ...
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What is the most accurate way to retrieve a user's correct IP address in PHP?

I know there are a plethora of $_SERVER variables headers available for IP address retrieval. I was wondering if there is a general consensus as to how to most accurately retrieve a user's real IP address (well knowing no method is perfect) using said variables? ...
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What is the difference between conversion specifiers %i and %d in formatted IO functions (*printf /

What is the difference between %d and %i when used as format specifiers in printf ? 4 Answers ...
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getActivity() returns null in Fragment function

I have a fragment (F1) with a public method like this 15 Answers 15 ...