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What is “loose coupling?” Please provide examples
... uses a CartContents class to keep track of the items in the shopping cart and an Order class for processing a purchase. The Order needs to determine the total value of the contents in the cart, it might do that like so:
Tightly Coupled Example:
public class CartEntry
{
public float Price;
...
Why does sun.misc.Unsafe exist, and how can it be used in the real world?
I came across the sun.misc.Unsafe package the other day and was amazed at what it could do.
16 Answers
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How can I prevent the “You have mixed tabs and spaces. Fix this?” message?
...time I paste code into my .cs file, I get the dreaded "You have mixed tabs and spaces. Fix this?" message. It has three options:
...
What is the proper way to re-attach detached objects in Hibernate?
...ale detached entity in JPA.
merge() will push the stale state to the DB,
and overwrite any intervening updates.
refresh() cannot be called on a detached entity.
lock() cannot be called on a detached entity,
and even if it could, and it did reattach the entity,
calling 'lock' with argument 'LockM...
How to parse XML in Bash?
..., but I didn't feel like this much editing should be done to someone else, and comments don't allow formatting, so...
rdom () { local IFS=\> ; read -d \< E C ;}
Let's call that "read_dom" instead of "rdom", space it out a bit and use longer variables:
read_dom () {
local IFS=\>
...
What is the canonical way to check for errors using the CUDA runtime API?
Looking through the answers and comments on CUDA questions, and in the CUDA tag wiki , I see it is often suggested that the return status of every API call should checked for errors. The API documentation contains functions like cudaGetLastError , cudaPeekAtLastError , and cudaGetErrorString , b...
How to combine date from one field with time from another field - MS SQL Server
... am dealing with, I have 2 datetime columns. One column stores the dates and another the times as shown.
16 Answers
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How do I get IntelliJ IDEA to display directories?
I've been trying out IntelliJ IDEA for JavaScript editing, and I like it so far, but I'm having a small problem with a new project.
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What can , and be used for?
...ess GET parameters
The <f:viewParam> manages the setting, conversion and validation of GET parameters. It's like the <h:inputText>, but then for GET parameters.
The following example
<f:metadata>
<f:viewParam name="id" value="#{bean.id}" />
</f:metadata>
does basic...
Git diff against a stash
...h show -p stash@{1}
From the git stash manpages:
By default, the command shows the diffstat, but it will accept any
format known to git diff (e.g., git stash show -p stash@{1} to view
the second most recent stash in patch form).
...