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Can “this” ever be null in Java?
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@John: You are. Part of the torture is you can't confirm it.
– Roger Pate
Sep 24 '10 at 21:32
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How to show a GUI message box from a bash script in linux?
...iting for user input, while whiptail --msgbox (which works) waits for user confirmation before exiting.
– Stéphane Gourichon
Jan 6 '16 at 8:43
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Linux command: How to 'find' only text files?
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I know this is an old thread, but I stumbled across it and thought I'd share my method which I have found to be a very fast way to use find to find only non-binary files:
find . -type f -exec grep -Iq . {} \; -print
The -I option to grep tells it to immediately ignore b...
Take a char input from the Scanner
...al keyboard strokes, this is not going to work. You would need to do some OS-specific native code stuff to turn off or work around line-buffering for console at the OS level.
Reference:
How to read a single char from the console in Java (as the user types it)?
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@synthesize vs @dynamic, what are the differences?
...is that if a property is declared as @dynamic it will not occupy memory (I confirmed with allocation instrument). A consequence is that you can declare property in class category.
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Which terminal command to get just IP address and nothing else?
... | grep "inet " | grep -v 127.0.0.1 | cut -d\ -f2
Or for linux system
hostname -i | awk '{print $3}' # Ubuntu
hostname -i # Debian
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How to save an HTML5 Canvas as an image on a server?
... send it to your server as an ajax request does this method require user's confirming? Or I can silently send image from canvas to server?
– MyTitle
Apr 15 '13 at 11:44
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How to scp in Python?
What's the most pythonic way to scp a file in Python? The only route I'm aware of is
14 Answers
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Converting array to list in Java
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Indeed, I tried some code and confirmed that calling List::add & List::remove fails with a list returned by Arrays.asList. The JavaDoc for that method is poorly written and unclear on this point. On my third reading, I suppose the phrase “fixed-size...
@RequestParam vs @PathVariable
...accepted by the annotations @PathVariable and @RequestParam.
To check and confirm the behavior I have created a spring boot application that contains only 1 controller.
@RestController
public class Controller
{
@GetMapping("/pvar/{pdata}")
public @ResponseBody String testPathVariable(@P...