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Change private static final field using Java reflection
....FINAL);
field.set(null, newValue);
}
public static void main(String args[]) throws Exception {
setFinalStatic(Boolean.class.getField("FALSE"), true);
System.out.format("Everything is %s", false); // "Everything is true"
}
}
Assuming no SecurityException is thrown...
sed edit file in place
...w file and then renames it behind the scenes, anyway.
Example:
sed -i 's/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g' filename
and
sed -i '' 's/STRING_TO_REPLACE/STRING_TO_REPLACE_IT/g' filename
on macOS.
share
...
Load image from resources area of project in C#
...g"));
If you want to know all resource names in your assembly, go with:
string[] all = System.Reflection.Assembly.GetEntryAssembly().
GetManifestResourceNames();
foreach (string one in all) {
MessageBox.Show(one);
}
...
Why are regular expressions so controversial? [closed]
...p;domain))
(?<local_part> (?&dot_atom) | (?&quoted_string))
(?<domain> (?&dot_atom) | (?&domain_literal))
(?<domain_literal> (?&CFWS)? \[ (?: (?&FWS)? (?&dcontent))* (?&FWS)?
\] (?&...
How to get the URL of the current page in C# [duplicate]
...
Try this :
string url = HttpContext.Current.Request.Url.AbsoluteUri;
// http://localhost:1302/TESTERS/Default6.aspx
string path = HttpContext.Current.Request.Url.AbsolutePath;
// /TESTERS/Default6.aspx
string host = HttpContext.Curren...
What is the meaning of “this” in Java?
... System.out.println(this); // refers to this entire object
}
public String toString() {
return "MyThisTest a=" + a; // refers to the field a
}
}
Then calling frobnicate() on new MyThisTest() will print
1
42
MyThisTest a=42
So effectively you use it for multiple things:
clarify ...
str.startswith with a list of strings to test for
...
str.startswith allows you to supply a tuple of strings to test for:
if link.lower().startswith(("js", "catalog", "script", "katalog")):
From the docs:
str.startswith(prefix[, start[, end]])
Return True if string starts with the prefix, otherwise return False. ...
What is the difference between parseInt() and Number()?
How do parseInt() and Number() behave differently when converting strings to numbers?
10 Answers
...
What is the maximum possible length of a query string?
...r Protocol — HTTP/1.1) states there is no limit to the length of a query string (section 3.2.1). RFC 3986 (Uniform Resource Identifier — URI) also states there is no limit, but indicates the hostname is limited to 255 characters because of DNS limitations (section 2.3.3).
While the specificatio...
Python, add trailing slash to directory string, os independently
...ow can I add a trailing slash ( / for *nix, \ for win32) to a directory string, if the tailing slash is not already there? Thanks!
...