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Validating URL in Java
...t to verify your String is a valid URL, you can use the UrlValidator class from the Apache Commons Validator project.
For example:
String[] schemes = {"http","https"}; // DEFAULT schemes = "http", "https", "ftp"
UrlValidator urlValidator = new UrlValidator(schemes);
if (urlValidator.isValid("ftp:/...
PHP and Enumerations
...PHP doesn't have native Enumerations. But I have become accustomed to them from the Java world. I would love to use enums as a way to give predefined values which IDEs' auto-completion features could understand.
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How to mock the Request on Controller in ASP.Net MVC?
...operty>Moq.Mock<T>.SetupGet<Tpropert>.... cannot be infered from uage. Try specifying the type arguments explicitly. What type do I set 'var request=' to though to get this to work?
– Nissan
Jun 9 '09 at 14:14
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How to use OrderBy with findAll in Spring Data
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@XtremeBiker From the documentation link you provided: "However, the first By acts as delimiter to indicate the start of the actual criteria." Moreover, if you scroll down to section "3.4.5. Limiting query results", there is actually an e...
Show percent % instead of counts in charts of categorical variables
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You might need to prefix percent with the package it's from to get the above to work (I did). ggplot(mtcars, aes(x = factor(hp))) + geom_bar(aes(y = (..count..)/sum(..count..))) + scale_y_continuous(labels = scales::percent)
– mammykins
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Check if object exists in JavaScript
...and less error-prone built-in. The string comparison prevents the compiler from 100% reliably tell us when we made a small mistake (like a typo) in these kinds of checks.
– Domi
Nov 24 '13 at 9:14
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Unix command to prepend text to a file
...form the output. The - means standard input, which is provide via the pipe from echo.
echo -e "to be prepended \n another line" | cat - text.txt
To rewrite the file a temporary file is required as cannot pipe back into the input file.
echo "to be prepended" | cat - text.txt > text.txt.tmp
mv ...
stop all instances of node.js server
...ws. Does that make killall node an invalid command because I cannot use it from command line.
– Kiran Ambati
Feb 9 '13 at 20:10
3
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Set Focus on EditText
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This works from me:
public void showKeyboard(final EditText ettext){
ettext.requestFocus();
ettext.postDelayed(new Runnable(){
@Override public void run(){
InputMethodManager keyboard=(InputMethodMan...
How to get the command line args passed to a running process on unix/linux systems?
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Doesn't work for me using pgrep from procps-ng 3.3.15 and 3.3.12. Just prints the pid and prorgam name without arguments.
– Socowi
Sep 20 '19 at 15:08
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