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Running shell command and capturing the output
...e a function that will execute a shell command and return its output as a string , no matter, is it an error or success message. I just want to get the same result that I would have gotten with the command line.
...
Getting the HTTP Referrer in ASP.NET
... ViewState["PreviousPageUrl"] = Request.UrlReferrer.ToString();
– JonH
Sep 23 '15 at 16:52
...
How can I restart a Java application?
...to restart a Java application:
public void restartApplication()
{
final String javaBin = System.getProperty("java.home") + File.separator + "bin" + File.separator + "java";
final File currentJar = new File(MyClassInTheJar.class.getProtectionDomain().getCodeSource().getLocation().toURI());
/*...
What does Ruby have that Python doesn't, and vice versa?
...e up with one here just to explain what I mean.
Reverse the words in this string:
sentence = "backwards is sentence This"
When you think about how you would do it, you'd do the following:
Split the sentence up into words
Reverse the words
Re-join the words back into a string
In Ruby, you'd ...
“Incorrect string value” when trying to insert UTF-8 into MySQL via JDBC?
...ver=utf8mb4, and leave characterEncoding out of the Connector/J connection string. Connector/J will then autodetect the UTF-8 setting.
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Performing user authentication in Java EE / JSF using j_security_check
...getRequest(). You can also just invalidate the session altogether.
public String logout() {
FacesContext.getCurrentInstance().getExternalContext().invalidateSession();
return "login?faces-redirect=true";
}
For the remnant (defining users, roles and constraints in deployment descriptor and...
How do I output coloured text to a Linux terminal?
...
I use it defining "manipulators", such as const std::string red("\033[0;31m"); or const std::string reset("\033[0m");. Then, I can write simply cout << red << "red text" << reset << endl;.
– Daniel Langr
Feb 1 '16 a...
What's the best way to validate an XML file against an XSD file?
...on:" + e);
} catch (IOException e) {}
The schema factory constant is the string http://www.w3.org/2001/XMLSchema which defines XSDs. The above code validates a WAR deployment descriptor against the URL http://java.sun.com/xml/ns/j2ee/web-app_2_4.xsd but you could just as easily validate against a ...
Drop columns whose name contains a specific string from pandas DataFrame
...er, and Idiomatic: str.contains
In recent versions of pandas, you can use string methods on the index and columns. Here, str.startswith seems like a good fit.
To remove all columns starting with a given substring:
df.columns.str.startswith('Test')
# array([ True, False, False, False])
df.loc[:,~...
How to force ASP.NET Web API to always return JSON?
...{
private readonly MediaTypeFormatter _formatter;
private readonly string _mimeTypeId;
public LiamNeesonContentNegotiator(MediaTypeFormatter formatter, string mimeTypeId)
{
if (formatter == null)
throw new ArgumentNullException("formatter");
if (String.I...