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How to generate and validate a software license key?
...y and hash with (for example) SHA1
Unpack the SHA1 hash as an alphanumeric string. This is the individual user's "Product Key"
Within the program, do the same hash, and compare with the product key. If equal, OK.
But, I repeat: this won't prevent piracy
I have recently read that this approach ...
Getting the max value of an enum
...f VB and that's why I love VB.
Howeva, here it is:
C#:
static void Main(string[] args)
{
MyEnum x = GetMaxValue<MyEnum>(); //In newer versions of C# (7.3+)
MyEnum y = GetMaxValueOld<MyEnum>();
}
public static TEnum GetMaxValue<TEnum>()
where TEnum : Enum
{
retu...
Open a folder using Process.Start
...
You don't need the double backslash when using unescaped strings:
System.Diagnostics.Process.Start("explorer.exe",@"c:\teste");
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C/C++ include header file order
... method can introduce hidden dependencies, say if myclass.cpp includes <string> then <myclass.h>, there's no way to catch at build time that myclass.h may itself depend on string; so if later on you, or someone else, includes myclass.h but don't need string, you'll get an error that need...
PHP array delete by value (not key)
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this only works for objects that can be converted to a string
– nischayn22
Aug 12 '12 at 20:20
7
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Select the values of one property on all objects of an array in PowerShell
...your case, you can just do the following to have a variable be an array of strings, where the strings are the Name property:
$objects = ls | select -ExpandProperty Name
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C# elegant way to check if a property's property is null
...
You're obviously looking for the Nullable Monad:
string result = new A().PropertyB.PropertyC.Value;
becomes
string result = from a in new A()
from b in a.PropertyB
from c in b.PropertyC
select c.Value;
This returns null, ...
Making a request to a RESTful API using python
...ld take optional "params" parameter which is usually a dict carrying query string. If a payload is necessary to fetch data (such as the example posted in question), then "requests.post" needs to be used. Additionally using "json" library makes it easier to parse json response.
–...
Overriding the java equals() method - not working?
... numberOfParameters;
private Level loggingLevel;
private String messageCode;
See the options avaliable to customize which fields to use in the equals. Lombok is avalaible in maven. Just add it with provided scope:
<dependency>
<groupId>org.projectlombok</...
Random color generator
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You can remove .split('') call. String already have Array indexer.
– ujeenator
Jul 27 '15 at 6:08
4
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