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Why does Java have transient fields?
... that are derived from other fields, and should only be done so programmatically, rather than having the state be persisted via serialization.
Here's a GalleryImage class which contains an image and a thumbnail derived from the image:
class GalleryImage implements Serializable
{
private Image...
Default constructor with empty brackets
...d reason that an empty set of round brackets (parentheses) isn't valid for calling the default constructor in C++?
9 Answer...
Equivalent to 'app.config' for a library (DLL)
...t project it suddenly starting working! My App.config setting now automatically get included in the DLL.configs. What a relief!
– Zeek2
Jun 19 '19 at 9:49
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Are getters and setters poor design? Contradictory advice seen [duplicate]
...
@JanezKuhar: I mean that rather than making the caller perform multiple operations which manipulate the state in several steps but basically leave the type as a bag of state with no meaning, expose methods which perform meaningful operations which might manipulate (or at l...
Is it possible to delete an object's property in PHP?
...ing fine for me in a loop
$remove = array(
"market_value",
"sector_id"
);
foreach($remove as $key){
unset($obj_name->$key);
}
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f...
What generates the “text file busy” message in Unix?
...utable while it was running.
For example, I was building a make workalike called rmk, and after a while it was self-maintaining. I would run the development version and have it build a new version. To get it to work, it was necessary to use the workaround:
gcc -g -Wall -o rmk1 main.o -L. -lrmk -...
Advanced JavaScript: Why is this function wrapped in parentheses? [duplicate]
...ing a named function also means at some future point the function could be called again which might not be desirable. By using an anonymous function in this manner you ensure it's only executed once.
This syntax is invalid:
function() {
// Some code
}();
Because you have to wrap the function i...
App Inventor 2 项目合并工具 AIMerge · App Inventor 2 中文网
... so it can be merged into the final project.
Developers can write code to call a screen they are not developing but they must know the name that has been assigned to that screen by its developer. Also, two different developers/screens can use the same database or asset but they must be named the s...
“Server” vs “Data Source” in connection string
... one that doesn't contain any spaces. In the simplest form, one has to provide four values - the URL, the container, the user and the credential.
server
database
uid
pwd
So a connection string looks like this.
server=stuffy.databases.net;database=stuffy;uid=konrad;pwd=Abc123(!);
...
jQuery multiple events to trigger the same function
Is there a way to have keyup , keypress , blur , and change events call the same function in one line or do I have to do them separately?
...