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How to sort a list/tuple of lists/tuples by the element at a given index?
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sorted_by_second = sorted(data, key=lambda tup: tup[1])
or:
data.sort(key=lambda tup: tup[1]) # sorts in place
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improv...
Total number of items defined in an enum
How can I get the number of items defined in an enum?
10 Answers
10
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How can prepared statements protect from SQL injection attacks?
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The idea is very simple - the query and the data are sent to the database server separately.
That's all.
The root of the SQL injection problem is in the mixing of the code and the data.
In fact, our SQL query is a legitimate program.
And we are creating such a program dynamically, adding...
Is the 'override' keyword just a check for a overridden virtual method?
...word in C++11 is nothing more than a check to make sure that the function being implemented is the override ing of a virtual function in the base class.
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Is it possible to have two partial classes in different assemblies represent the same class?
...n a project called 'MyProject.Data', which acts as the data layer for my web application.
9 Answers
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Is the primary key automatically indexed in MySQL?
...when defining the primary key? Is the answer the same for MyISAM and InnoDB?
9 Answers
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Check if a string has white space
I'm trying to check if a string has white space . I found this function but it doesn't seem to be working:
7 Answers
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When should I use the new keyword in C++?
I've been using C++ for a short while, and I've been wondering about the new keyword. Simply, should I be using it, or not?
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How can I convert a hex string to a byte array? [duplicate]
Can we convert a hex string to a byte array using a built-in function in C# or do I have to make a custom method for this?
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How to run a JAR file
...e jar file manifest.
Oracle's tutorial contains a complete demonstration, but here's another one from scratch. You need two files:
Test.java:
public class Test
{
public static void main(String[] args)
{
System.out.println("Hello world");
}
}
manifest.mf:
Manifest-version: 1...