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Use of Java's Collections.singletonList()?
...ections.singletonList() in Java? I understand that it returns a list with one element. Why would I want to have a separate method to do that? How does immutability play a role here?
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How can I remove a specific item from an array?
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edited 2 days ago
Lioness100
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answered Apr 23 '11 at 22:20
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Is there replacement for cat on Windows
...lent of:
cat file1 file2 > file3
Example 2:
type *.vcf > all_in_one.vcf
This command will merge all the vcards into one.
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How does a hash table work?
...and easier to search, but still you don't want to search sequentially from one end of the library (or list) to the other.
You want something that, with the title of the book, can give you the right spot at once, so all you have to do is just stroll over to the right shelf, and pick up the book.
Bu...
Vim: How do you open another [No Name] buffer like the one on startup?
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:new will create a split window with an unnamed buffer.
:enew will open one in the current window.
:vnew will open one in a vertically split window.
:tabnew will open one in a new tab.
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Correct use of Multimapping in Dapper
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One thing to remember is you can't have spaces in the spliton, ie CustomerId,CustomerName not CustomerId, CustomerName, since Dapper doesn't Trim the results of the string split. It will just throw the generic spliton error. ...
How to make a great R reproducible example
...upvotes.
Producing a minimal dataset
For most cases, this can be easily done by just providing a vector/data frame with some values. Or you can use one of the built-in datasets, which are provided with most packages.
A comprehensive list of built-in datasets can be seen with library(help = "datase...
How do I concatenate strings and variables in PowerShell?
...this, please.
The double quotes are for when you want some pre-processing done (such as variables, special characters, etc.)
So:
$name = "Marshall Bruce Mathers III"
Write-Host "$name"
-> Marshall Bruce Mathers III
Whereas:
$name = "Marshall Bruce Mathers III"
Write-Host '$name'
-> $name
(I ...
How to allow only one radio button to be checked?
... radio buttons, which messed me up. It is supposed to only let me check on one radio button and I had that somehow but I lost it. Any help? Thank you.
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What is the best way to ensure only one instance of a Bash script is running? [duplicate]
What is the simplest/best way to ensure only one instance of a given script is running - assuming it's Bash on Linux?
14 An...