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Difference between “on-heap” and “off-heap”
...t subject to GC). As the off-heap store continues to be managed in memory, it is slightly slower than the on-heap store, but still faster than the disk store.
The internal details involved in management and usage of the off-heap store aren't very evident in the link posted in the question, so it wo...
What is difference between Errors and Exceptions? [duplicate]
...cation should
not try to catch."
while
An Exception "indicates conditions
that a reasonable application might
want to catch."
Error along with RuntimeException & their subclasses are unchecked exceptions. All other Exception classes are checked exceptions.
Checked exceptions are g...
How well is Unicode supported in C++11?
...ibrary support unicode?
Terribly.
A quick scan through the library facilities that might provide Unicode support gives me this list:
Strings library
Localization library
Input/output library
Regular expressions library
I think all but the first one provide terrible support. I'll get back to i...
When should you branch?
When working with a SCM system, when should you branch?
12 Answers
12
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Spring @Transaction method call by the method within the same class, does not work?
...
It's a limitation of Spring AOP (dynamic objects and cglib).
If you configure Spring to use AspectJ to handle the transactions, your code will work.
The simple and probably best alternative is to refactor your code. For examp...
Tools to search for strings inside files without indexing [closed]
...ings in an incredibly old legacy application, and the programmers who made it thought it would be a great idea to plaster the entire app with connection strings all over the place.
...
Testing modules in rspec
...d in few models and for now I simply have duplicate tests for each model (with few differences). Is there a way to DRY it up?
...
What regular expression will match valid international phone numbers?
...eed to determine whether a phone number is valid before attempting to dial it. The phone call can go anywhere in the world.
...
Is there a cross-browser onload event when clicking the back button?
...t fire when the page loads as a result of a back button operation — it only fires when the page is first loaded.
15 A...
How does one write code that best utilizes the CPU cache to improve performance?
...
The cache is there to reduce the number of times the CPU would stall waiting for a memory request to be fulfilled (avoiding the memory latency), and as a second effect, possibly to reduce the overall amount of data that needs to be transfered (preserving memory bandwidth).
Techniques for avoidi...