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Authorative way to override onMeasure()?

What's the correct way of overriding onMeasure()? I've seen various approaches. For example, Professional Android Development uses MeasureSpec to calculate the dimensions, then ends with a call to setMeasuredDimension(). For example: ...
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is_null($x) vs $x === null in PHP [duplicate]

...y suggested that I use is_null() instead as it is specifically designed for the null-evaluation purpose. He also started talking about math or something. ...
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Multiple inheritance/prototypes in JavaScript

I've come to a point where I need to have some sort of rudimentary multiple inheritance happening in JavaScript. (I'm not here to discuss whether this is a good idea or not, so please kindly keep those comments to yourself.) ...
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Should I use Java's String.format() if performance is important?

We have to build Strings all the time for log output and so on. Over the JDK versions we have learned when to use StringBuffer (many appends, thread safe) and StringBuilder (many appends, non-thread-safe). ...
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What is the main difference between Inheritance and Polymorphism?

...to be exactly the same. I was just wondering what the MAIN difference was for my own piece of mind. I know there are a number of similar questions to this but, none I have seen which provide a definitive answer. ...
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Replace Line Breaks in a String C#

... answered Oct 26 '08 at 13:38 Corin BlaikieCorin Blaikie 16k99 gold badges3232 silver badges3838 bronze badges ...
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Extract substring in Bash

Given a filename in the form someletters_12345_moreleters.ext , I want to extract the 5 digits and put them into a variable. ...
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How to use wait and notify in Java without IllegalMonitorStateException?

...esults of each cell. As soon as one cell is ready I need to print it, but for example I need to print the [0][0] cell before cell [2][0] even if the result of [2][0] is ready first. So I need to print it by order. So my idea is to make the printer thread wait until the multiplyThread notifies it t...
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How do I programmatically change file permissions?

...tes is available in Java 7, as part of the "new" New IO facility (NIO.2). For example, POSIX permissions can be set on an existing file with setPosixFilePermissions(), or atomically at file creation with methods like createFile() or newByteChannel(). You can create a set of permissions using EnumSe...
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UITableView : viewForHeaderInSection: not called during reloadData:

I've set up the tableview with correct delegate and datasource linkages.. the reloadData method calls the datasource and the delegate methods except for viewForHeaderInSection: . ...