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How to format a Java string with leading zero?

Here is the String, for example: 21 Answers 21 ...
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Can you use CSS to mirror/flip text?

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How to do version numbers? [closed]

My company is building a product. It's going to be versioned by SVN. It's a webapp so basically there will never be a version out which doesn't have some features in them and thus could always be labeled as beta. But since it's going to be a corporate product I really don't want the "unstable watcho...
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Divide a number by 3 without using *, /, +, -, % operators

How would you divide a number by 3 without using * , / , + , - , % , operators? 48 Answers ...
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Group by multiple columns in dplyr, using string vector input

I'm trying to transfer my understanding of plyr into dplyr, but I can't figure out how to group by multiple columns. 9 Answ...
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Changing iframe src with Javascript

I am trying to change an <iframe src=... > when someone clicks a radio button. For some reason my code is not working correctly and I am having trouble figuring out why. Here is what I have: ...
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Python - Create a list with initial capacity

Code like this often happens: 9 Answers 9 ...
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How can I access my localhost from my Android device?

I'm able to access my laptop web server using the Android emulator, I'm using 10.0.2.2:portno works well. 39 Answers ...
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Regex to validate password strength

My password strength criteria is as below : 11 Answers 11 ...
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Why do people say there is modulo bias when using a random number generator?

I have seen this question asked a lot but never seen a true concrete answer to it. So I am going to post one here which will hopefully help people understand why exactly there is "modulo bias" when using a random number generator, like rand() in C++. ...