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What is CDATA in HTML? [duplicate]
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All text in an XML document will be parsed by the parser.
But text inside a CDATA section will be ignored by the parser.
CDATA - (Unparsed) Character Data
The term CDATA is used about text data that should not be parsed by t...
qmake: could not find a Qt installation of ''
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sudo apt-get install qt5-default works for me.
$ aptitude show qt5-default
tells that
This package sets Qt 5 to be the default Qt version to be used when using
development binaries like qmake. It provides a default configuration for
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How to sort a collection by date in MongoDB?
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@SamBrightman That function is just a callback. Whatever you want to do with the query result, you put that logic inside your callback. You can read more on what callbacks are and how they work to learn event based programming.
– Sushant Gupt...
Is Java Regex Thread Safe?
...41681.html#A14 : "The Java 2 SDK, Standard Edition itself contains a file called src.zip that contains the source code for the public classes in the java package") so one can take a quick peek oneself.
– David Tonhofer
Nov 18 '13 at 15:40
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Detect permission of camera in iOS
...se if(authStatus == AVAuthorizationStatusRestricted){
// restricted, normally won't happen
} else if(authStatus == AVAuthorizationStatusNotDetermined){
// not determined?!
[AVCaptureDevice requestAccessForMediaType:mediaType completionHandler:^(BOOL granted) {
if(granted){
NSLog(@"Gr...
Removing Java 8 JDK from Mac
So I installed the beta of JDK 8 a while ago to look at some of the examples. I thought for sure by now, it's easy to change between versions.
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How to print matched regex pattern using awk?
...search for pattern using //, then print out the line, which by default is called a record, denoted by $0. At least read up the documentation.
If you only want to get print out the matched word.
awk '{for(i=1;i<=NF;i++){ if($i=="yyy"){print $i} } }' file
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Why is “copy and paste” of code dangerous? [closed]
...you will need to fix it every place you did and hope you can remember them all (this also holds for changed requirements).
If you keep logic in one place, it is easier to change when needed (so if you decide that the application needs updating, you only do it in one place).
Have your boss read abo...
Examples of GoF Design Patterns in Java's core libraries
...FloatBuffer and DoubleBuffer)
javax.swing.GroupLayout.Group#addComponent()
All implementations of java.lang.Appendable
java.util.stream.Stream.Builder
Factory method (recognizeable by creational methods returning an implementation of an abstract/interface type)
java.util.Calendar#getInstance()
jav...
How do I load an org.w3c.dom.Document from XML in a string?
...L document in a string and would like a Document object. Google turns up all sorts of garbage. What is the simplest solution? (In Java 1.5)
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