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Comparing Java enum members: == or equals()?
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Both are technically correct. If you look at the source code for .equals(), it simply defers to ==.
I use ==, however, as that will be null safe.
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Which UUID version to use?
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There are two different ways of generating a UUID.
If you just need a unique ID, you want a version 1 or version 4.
Version 1: This generates a unique ID based on a network card MAC address and a timer. These IDs are easy to predict (giv...
Which is faster/best? SELECT * or SELECT column1, colum2, column3, etc
...ting SQL commands because it is more efficient to SELECT columns you specifically need.
47 Answers
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AngularJS ng-if with multiple conditions
I'd like to know if it's possible to have something like this:
5 Answers
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How to convert an Stream into a byte[] in C#? [duplicate]
...System.IO.Stream stream)
{
long originalPosition = 0;
if(stream.CanSeek)
{
originalPosition = stream.Position;
stream.Position = 0;
}
try
{
byte[] readBuffer = new byte[4096];
int totalBytesRead ...
Insert Update stored proc on SQL Server
I've written a stored proc that will do an update if a record exists, otherwise it will do an insert. It looks something like this:
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onMeasure custom view explanation
... drawing in onDraw overrided method. Why I need to override onMeasure ? If I didn't, everything seen to be right. May someone explain it? How should I write my onMeasure method? I've seen couple tutorials, but each one is a little bit different than the other. Sometimes they call super.onMeasu...
How do I manage MongoDB connections in a Node.js web application?
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@Cracker: If you have express application, you can save db object into req.db with this middleware: github.com/floatdrop/express-mongo-db
– floatdrop
Aug 8 '14 at 18:15
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IOS: verify if a point is inside a rect
Is there a way to verify if a CGPoint is inside a specific CGRect .
8 Answers
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When NOT to call super() method when overriding?
... will perform the save() logic for both A and B, in this particular order. If you weren't calling super.save() inside B.save(), A.save() wouldn't be called. And if you called super.save() after save(b), A.save() would be effectively performed afterwards B.save().
If you want to override super's beh...