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Calling the base constructor in C#
...:
public class MyExceptionClass : Exception
{
public MyExceptionClass(string message, string extrainfo) : base(message)
{
//other stuff here
}
}
Note that a constructor is not something that you can call anytime within a method. That's the reason you're getting errors in your ...
General guidelines to avoid memory leaks in C++ [closed]
...e heap internally (note the double negation... :-) ...). For example, std::string implemented with Small String Optimization will have a buffer "on the stack of the class" for small strings (~15 chars), and will use a pointer to a memory in the heap for larger strings... But from the outside, std::s...
How to mount a host directory in a Docker container
... mount instead of -v. Here's its documentation:
--mount: Consists of multiple key-value pairs, separated by commas. Each key/value pair takes the form of a <key>=<value> tuple. The --mount syntax is more verbose than -v or --volume, but the order of the keys is not significant, and the...
Passing data between a fragment and its container activity
...the interface...
public interface OnDataPass {
public void onDataPass(String data);
}
Then, connect the containing class' implementation of the interface to the fragment in the onAttach method, like so:
OnDataPass dataPasser;
@Override
public void onAttach(Context context) {
super.onAtt...
Associating enums with strings in C#
... example for a Logger:
public class LogCategory
{
private LogCategory(string value) { Value = value; }
public string Value { get; set; }
public static LogCategory Trace { get { return new LogCategory("Trace"); } }
public static LogCategory Debug { get { return new LogCategory(...
How to quickly check if folder is empty (.NET)?
...EnumerateFileSystemEntries method overloads
public bool IsDirectoryEmpty(string path)
{
IEnumerable<string> items = Directory.EnumerateFileSystemEntries(path);
using (IEnumerator<string> en = items.GetEnumerator())
{
return !en.MoveNext();
}
}
EDIT: seeing t...
Convert java.util.Date to String
I want to convert a java.util.Date object to a String in Java.
18 Answers
18
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Is there an alternative to string.Replace that is case-insensitive?
I need to search a string and replace all occurrences of %FirstName% and %PolicyAmount% with a value pulled from a database. The problem is the capitalization of FirstName varies. That prevents me from using the String.Replace() method. I've seen web pages on the subject that suggest
...
Is there a Pattern Matching Utility like GREP in Windows?
...ndows 7/2008R2, optional for XP/2003/Vista/2008) which includes the select-string cmdlet for this purpose.
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How to generate unique ID with node.js
...
The fastest possible way to create random 32-char string in Node is by using native crypto module:
const crypto = require("crypto");
const id = crypto.randomBytes(16).toString("hex");
console.log(id); // => f9b327e70bbcf42494ccb28b2d98e00e
...