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How to sort by two fields in Java?
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You can use Collections.sort as follows:
private static void order(List<Person> persons) {
Collections.sort(persons, new Comparator() {
public int compare(Object o1, Object o2) {
String x1 = ((Person) o1).getName();
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What is the purpose of “return await” in C#?
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There is one sneaky case when return in normal method and return await in async method behave differently: when combined with using (or, more generally, any return await in a try block).
Consider these two versions of a method:
Task<SomeResult> DoSomethingAs...
What is the correct MIME type to use for an RSS feed?
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Neither. It's application/rss+xml
http://www.rssboard.org/rss-mime-type-application.txt
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SFTP in Python? (platform independent)
I'm working on a simple tool that transfers files to a hard-coded location with the password also hard-coded. I'm a python novice, but thanks to ftplib, it was easy:
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explicit casting from super class to subclass
...he assignment Dog dog = (Dog) animal; does not generate a compilation error, but at runtime it generates a ClassCastException . Why can't the compiler detect this error?
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How do I concatenate two text files in PowerShell?
...le1.txt, inputFile2.txt | Set-Content joinedFile.txt
You can concatenate more than two files with this style, too.
If the source files are named similarly, you can use wildcards:
Get-Content inputFile*.txt | Set-Content joinedFile.txt
Note 1: PowerShell 5 and older versions allowed this to be done...
Is it possible to change the location of packages for NuGet?
I have the following convention for most of my projects:
14 Answers
14
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Can I convert a C# string value to an escaped string literal
...ter.ToString();
}
}
}
This code:
var input = "\tHello\r\n\tWorld!";
Console.WriteLine(input);
Console.WriteLine(ToLiteral(input));
Produces:
Hello
World!
"\tHello\r\n\tWorld!"
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How to implement a tree data-structure in Java? [closed]
...;> children;
}
}
That is a basic tree structure that can be used for String or any other object. It is fairly easy to implement simple trees to do what you need.
All you need to add are methods for add to, removing from, traversing, and constructors. The Node is the basic building block ...
Setting HttpContext.Current.Session in a unit test
... had to mock HttpContext by using a HttpContextManager and calling the factory from within our application as well as the Unit Tests
public class HttpContextManager
{
private static HttpContextBase m_context;
public static HttpContextBase Current
{
get
{
if ...