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Create a custom event in Java
...o look into the observer pattern.
Here's some sample code to get yourself started:
import java.util.*;
// An interface to be implemented by everyone interested in "Hello" events
interface HelloListener {
void someoneSaidHello();
}
// Someone who says "Hello"
class Initiater {
private Lis...
Gson custom seralizer for one variable (of many) in an object using TypeAdapter
...tes something that should be easy but actually requires a lot of code.
To start off, write an abstract TypeAdapterFactory that gives you hooks to modify the outgoing data. This example uses a new API in Gson 2.2 called getDelegateAdapter() that allows you to look up the adapter that Gson would use ...
call a static method inside a class?
...n way of calling a static method:
self::staticMethod();
Now, before you start thinking that the :: is the static call operator, let me give you another example:
self::bar();
This will print baz = 1, which means that $this->bar() and self::bar() do exactly the same thing; that's because :: i...
CursorLoader usage without ContentProvider
Android SDK documentation says that startManagingCursor() method is depracated:
5 Answers
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How to implement the activity stream in a social network
...ling your own, you could look to a third party service used via an API. I started one called Collabinate (http://www.collabinate.com) that has a graph database backend and some fairly sophisticated algorithms for handling large amounts of data in a highly concurrent, high performance manner. While...
Why is the Java main method static?
...ming Language Concepts - Section 2.17 Execution:
The Java virtual machine starts execution by invoking the method main of some specified class and passing it a single argument, which is an array of strings. This causes the specified class to be loaded (§2.17.2), linked (§2.17.3) to other types th...
How to use unicode characters in Windows command line?
...ppresses the output "Active code page: 65001" you would get every time you start a new command line windows.
A full list of all available number you can get from Code Page Identifiers
Note, the settings will apply only for the current user. If you like to set it for all users, replace line SET ROO...
“git rm --cached x” vs “git reset head -- x”?
... HEAD --mixed and it will "reset" the index to the state it was before you started adding files / adding modifications to the index ( via git add ) In this case, the working copy and the index ( or staging ) were in sync, but you made the HEAD and the index to be in sync after the reset.
git rm on ...
Returning value from called function in a shell script
...d that anyone can use after calling testlock and reset it each time at the start of the method
– kisna
May 23 at 20:39
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git switch branch without discarding local changes
...is trivial:
$ git checkout -b develop
This creates a new develop branch starting from wherever you are
now. Now you can commit and the new stuff is all on develop.
You do have a develop. See if Git will let you switch without
doing anything:
$ git checkout develop
This will either succeed, o...