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How to revert multiple git commits?
... you have published, because somebody might have based their work on it. If you rewrite (change) history, you would make problems with merging their changes and with updating for them.
So the solution is to create a new commit which reverts changes that you want to get rid of. You can do this usi...
Is there a method that calculates a factorial in Java?
I didn't find it, yet. Did I miss something?
I know a factorial method is a common example program for beginners. But wouldn't it be useful to have a standard implementation for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too...
Converting between java.time.LocalDateTime and java.util.Date
Java 8 has a completely new API for date and time. One of the most useful classes in this API is LocalDateTime , for holding a timezone-independent date-with-time value.
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How to get a random number in Ruby
How do I generate a random number between 0 and n ?
17 Answers
17
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记录一些Mac OS X技巧 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...东西不记录下来就会找不到，于是就有了这篇日志。重启Finder有些设置更改以后需要重启Finder才能生效，最简...用了几个月Mac OS X，发现很多东西不记录下来就会找不到，于是就有了这篇日志。
重启Finder
有些设置更改以后需...
Checking if a SQL Server login already exists
I need to check if a specific login already exists on the SQL Server, and if it doesn't, then I need to add it.
10 Answers
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Check if two linked lists merge. If so, where?
... |
V
1-->2-->3-->4-->5
1) Go through the first list setting each next pointer to NULL.
Now you have:
A B C
1-->2-->3 4 5
2) Now go through the second list and wait until you see a NULL, that is your merge point.
If you can't be sure that they merge you can ...
SQL Server: Query fast, but slow from procedure
...outPS(@CustID varchar(20))
AS
BEGIN
DECLARE @LocCustID varchar(20)
SET @LocCustID = @CustID
SELECT *
FROM orders
WHERE customerid = @LocCustID
END
Hope this helps somebody else, doing this reduced my execution time from 5+ minutes to about 6-7 seconds.
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Is there any connection string parser in C#?
I have a connection string and I want to be able to peek out for example "Data Source".
Is there a parser, or do I have to search the string?
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Remove items from one list in another
... Just be careful when using Except as this actually performs a set operation, which distincts the resulting list. I was not expecting this behaviour as I am using a List, not a HashSet. Related.
– logan
Mar 2 '16 at 20:27
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