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Java `final` method: what does it promise?
...al developer to create functionality that cannot be changed by subclasses, and that is all the guarantee it provides.
This means that if the method relies on other customizable components like non-public fields/methods the functionality of the final method may still be customizable. This is good th...
Remove a folder from git tracking
...oint of view (i.e. they are in past history, but not in the latest commit, and people pulling from this repo will get the files removed from their trees), but stay on your working directory because you've used --cached.
shar...
git: switch branch without detaching head
I have a repository on github with a main branch (master) and a branch for some experimental work. I made some commits and pushed to the experimental branch and everything was fine.
...
git remote prune – didn't show as many pruned branches as I expected
...l branches (not tracking branches) are not touched by git remote prune command and should be removed manually.
Now, a real-world example for better understanding:
You have a remote repository with 2 branches: master and feature. Let's assume that you are working on both branches, so as a result yo...
The role of #ifdef and #ifndef
In this what is the role of #ifdef and #ifndef , and what's the output?
4 Answers
4...
Update date + one year in mysql
...und.
Should you want to add more complex time periods, for example 1 year and 15 days, you can use
UPDATE tablename SET datefieldname = curdate() + INTERVAL 15 DAY + INTERVAL 1 YEAR;
I found that using DATE_ADD doesn't allow for adding more than one interval. And there is no YEAR_DAYS interval k...
Sqlite LIMIT / OFFSET query
...count> OFFSET <skip>
It's compatible with the syntax from MySQL and PostgreSQL. MySQL supports both syntax forms, and its docs claim that the second syntax with OFFSET was meant to provide compatibility with PostgreSQL. PostgreSQL docs show it only supports the second syntax, and SQLite...
Declare variable in table valued function
...two flavors of table valued functions. One that is just a select statement and one that can have more rows than just a select statement.
This can not have a variable:
create function Func() returns table
as
return
select 10 as ColName
You have to do like this instead:
create function Func()
ret...
What is the 'CLSCompliant' attribute in .NET?
...ublic members. However they can be used with private members.
Class names and member names should not differ only based on their case. For example we cannot have two methods named MyMethod and MYMETHOD.
Only properties and methods may be overloaded, operators should not be overloaded.
...
How can I get sin, cos, and tan to use degrees instead of radians?
...{
return angle * (180 / Math.PI);
}
Note that functions like sin, cos, and so on do not return angles, they take angles as input. It seems to me that it would be more useful to you to have a function that converts a degree input to radians, like this:
function toRadians (angle) {
return angle...