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Why use a prime number in hashCode?
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Because you want the number you are multiplying by and the number of buckets you are inserting into to have orthogonal prime factorizations.
Suppose there are 8 buckets to insert into. If the number you are using to multiply by is some multiple of 8, then the bucket inserted...
Android: Generate random color on click?
I have an ImageView , in which I am programmaticly creating drawables and presenting them to the user. My goal is to click on said ImageView and change the drawable's color.
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Check if a string contains another string
...the position of a string case-insensitive use the third parameter of Instr and give it the const vbTextCompare (or just 1 for die-hards).
Dim posOf_A As Integer
posOf_A = InStr(1, "find the comma, in the string", "A", vbTextCompare)
will give you a value of 14.
Note that you have to specify the...
How to produce a range with step n in bash? (generate a sequence of numbers with increments)
...rd a guess that the downvote was due to your answer being generic to 'sh', and not specific to 'bash'. The pure Bash approach {begin end step} performs just a little better.The older 'seq' method's handy on older or smaller-memory systems like busybox. I did upvote both your and TheBonsai's answ...
Warning the user/local/mysql/data directory is not owned by the mysql user
I can't start the mysql service in Snow Leopard, and in the panel prefs appears the message,
2 Answers
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What does an underscore in front of an import statement mean?
...river{})
Once it's registered in this way, sqlite3 can be used with the standard library's sql interface in your code like in the example:
db, err := sql.Open("sqlite3", "./foo.db")
share
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improv...
How to find current transaction level?
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just run DBCC useroptions and you'll get something like this:
Set Option Value
--------------------------- --------------
textsize 2147483647
language us_english
dateformat mdy
d...
How can I push a local Git branch to a remote with a different name easily?
I've been wondering if there's an easy way to push and pull a local branch with a remote branch with a different name without always specifying both names.
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How to add image to canvas
... exactly my case. I was loading some blob data into canvas using new Image and wondering why it was always showing me a previous image. Turns out even if I'm loading an image from a variable I still have to wait for the onload to happen. Thank you!
– aexl
Mar 1...
How much overhead does SSL impose?
I know there's no single hard-and-fast answer, but is there a generic order-of-magnitude estimate approximation for the encryption overhead of SSL versus unencrypted socket communication? I'm talking only about the comm processing and wire time, not counting application-level processing.
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