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Why use prefixes on member variables in C++ classes
...ably the most important case is "p" for pointer (because the usage changes from var. to var-> and you have to be much more careful with pointers - NULLs, pointer arithmetic, etc), but all the others are very handy.
For example, you can use the same variable name in multiple ways in a single func...
What's the difference between BaseAdapter and ArrayAdapter?
...ich is ArrayAdapter. There are a number of other adapters that are derived from BaseAdapter that fit different purposes. As a result it is unlikley there is any difference in efficiency between the two; you just get access to a different set of functions/methods with the various subclasses.
(2) The...
Serialize an object to XML
...lize(writer, this);
writer.Flush();
}
}
To create the object from the saved file, add the following function and replace [ObjectType] with the object type to be created.
/// <summary>
/// Load an object from an xml file
/// </summary>
/// <param name="FileName">Xml f...
How can I list ALL DNS records?
...less you control the zone. You'll usually conduct a zone transfer directly from the authoritative server (the @ns1.google.com below) and often from a name server that may not be published (a stealth name server).
# This will return "Transfer failed"
dig @ns1.google.com google.com axfr
If you have...
To draw an Underline below the TextView in Android
... the text in TextView.
SpannableString
setPaintFlags(); of TextView
Html.fromHtml();
Let me explain you all approaches :
1st Approach
For underling the text in TextView you have to use SpannableString
String udata="Underlined Text";
SpannableString content = new SpannableString(udata);
conten...
Read a variable in bash with a default value
I need to read a value from the terminal in a bash script. I would like to be able to provide a default value that the user can change.
...
Can I use git diff on untracked files?
...e, please note that command substitution will remove the trailing newlines from your file.)
– Wildcard
Mar 17 '16 at 9:34
8
...
What does PHP keyword 'var' do?
...er needed. It will work in PHP5, but will raise an E_STRICT warning in PHP from version 5.0.0 up to version 5.1.2, as of when it was deprecated. Since PHP 5.3, var has been un-deprecated and is a synonym for 'public'.
Example usage:
class foo {
var $x = 'y'; // or you can use public like...
...
Can I change the Android startActivity() transition animation?
...apk/res/android"
android:fillAfter="true">
<alpha android:fromAlpha="1.0"
android:toAlpha="0.0"
android:duration="500"/> //Time in milliseconds
</set>
In your finish-class
private void finishTask() {
if("blabbla".equals("blablabla"){
...
What is the difference between instanceof and Class.isAssignableFrom(…)?
..., you need to know the class of B at compile time. When using isAssignableFrom() it can be dynamic and change during runtime.
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