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What's onCreate(Bundle savedInstanceState)

Can anyone help me to know about the Bundle savedInstanceState in onCreate(Bundle savedInstanceState) I am newbie in Android. I try to understand it from developer.android.com. But I am not able to understand. Can anyone simplify it? ...
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What is the difference D3 datum vs. data?

Can someone please explain the difference between datum() and data() in D3.js? I see both being used and I am not sure why you should choose one over the other? ...
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How to check if all of the following items are in a list?

... Operators like <= in Python are generally not overriden to mean something significantly different than "less than or equal to". It's unusual for the standard library does this--it smells like legacy API to me. Use the equivalent and more clearly-named method, set.issubset. Note th...
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z-index not working with fixed positioning

...o find the best answer that works for you. Solutions The <html> element is your only stacking context, so just follow the stacking rules inside a stacking context and you will see that elements are stacked in this order The stacking context’s root element (the <html> element i...
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How to delete from a text file, all lines that contain a specific string?

...– does not work with BSD sed: sed -i '/pattern to match/d' ./infile Same, but for BSD sed (Mac OS X and FreeBSD) – does not work with GNU sed: sed -i '' '/pattern to match/d' ./infile To directly modify the file (and create a backup) – works with BSD and GNU sed: sed -i.bak '/pattern to...
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Turn on IncludeExceptionDetailInFaults (either from ServiceBehaviorAttribute or from the

I have a WCF service that has been working perfectly, and something has changed and I don't know what. 6 Answers ...
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Divide a number by 3 without using *, /, +, -, % operators

... if (num == 3) sum = add(sum, 1); return sum; } As Jim commented this works, because: n = 4 * a + b n / 3 = a + (a + b) / 3 So sum += a, n = a + b, and iterate When a == 0 (n < 4), sum += floor(n / 3); i.e. 1, if n == 3, else 0 ...
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How to dynamically create a class?

... Yes, you can use System.Reflection.Emit namespace for this. It is not straight forward if you have no experience with it, but it is certainly possible. Edit: This code might be flawed, but it will give you the general idea and hopefully off to a good start towards t...
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Symfony2 : How to get form validation errors after binding the request to the form

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Setting Objects to Null/Nothing after use in .NET

...rect, there is no need to set objects to null after use. If an object implements IDisposable, just make sure you call IDisposable.Dispose() when you're done with that object (wrapped in a try..finally, or, a using() block). But even if you don't remember to call Dispose(), the finaliser method on th...