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Collections.emptyList() vs. new instance
...inal <T> List<T> emptyList() {
return (List<T>) EMPTY_LIST;
}
So if your method (which returns an empty list) is called very often, this approach may even give you slightly better performance both CPU and memory wise.
...
Equivalent of *Nix 'which' command in PowerShell?
...on for the Which function:
function which($cmd) { get-command $cmd | % { $_.Path } }
PS C:\> which devcon
C:\local\code\bin\devcon.exe
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fo...
How do I find the .NET version?
...ework Setup\NDP' -recurse | gp -name Version,Release -EA 0 |
where { $_.PSChildName -match '^(?!S)\p{L}'} | select PSChildName, Version, Release
The last command (8) will give you all versions, including .NET 4.5.
sha...
ADB Android Device Unauthorized
...uthorized on ADB for whatever reason.
1. Check if authorized:
<ANDROID_SDK_HOME>\platform-tools>adb devices
List of devices attached
4df798d76f98cf6d unauthorized
2. Revoke USB Debugging on phone
If the device is shown as unauthorized, go to the developer options on the phone an...
How to take a screenshot programmatically on iOS
...iOS7 or above
- (UIImage *) screenshot {
CGSize size = CGSizeMake(your_width, your_height);
UIGraphicsBeginImageContextWithOptions(size, NO, [UIScreen mainScreen].scale);
CGRect rec = CGRectMake(0, 0, your_width, your_height);
[_viewController.view drawViewHierarchyInRect:rec afte...
How to load an ImageView by URL in Android? [closed]
....execute("http://java.sogeti.nl/JavaBlog/wp-content/uploads/2009/04/android_icon_256.png");
public void onClick(View v) {
startActivity(new Intent(this, IndexActivity.class));
finish();
}
private class DownloadImageTask extends AsyncTask<String, Void, Bitmap> {
ImageView bmImage...
Force line-buffering of stdout when piping to tee
...ndard C (or even POSIX). It's probably better to use setvbuf(stdout, NULL, _IOLBF, 0), which is exactly equivalent.
– rvighne
Oct 11 '19 at 7:13
...
Jackson - Deserialize using generic class
...= Util.<List<TaskBean>>convertJsonToPOJO("E:/J2eeWorkspaces/az_workspace_svn/az-client-service/dir1/dir2/filename.json", TaskBean.class);
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Why is WinRT unmanaged? [closed]
...om the new C++ compiler extensions that make it automatic, very similar to _com_ptr_t of old with C++/CLI-like syntax to avoid it. Binding to managed languages is relatively simple since the CLR already has excellent COM interop support. WinRT also adopted the metadata format of .NET. Afaik, no w...
How to drop a database with Mongoose?
...the known schemas, and execute an ensureIndex to make sure we're clean
_.each(mongoose.connections[0].base.modelSchemas, function(schema, key) {
asyncFunctions.push(function(cb){
mongoose.model(key, schema).ensureIndexes(function(){
return cb()
})
})
})
...