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How to run a background task in a servlet based web application?
...o do it. My servlet has a method which gives counts of the user from a database on a daily basis as well as the total count of the users from the whole database. So I want to keep the servlet continuously running for that.
...
When should I use a trailing slash in my URL?
...URL containing a hierarchical structure against which the relative link is based, and that the ftp, http,
and file URL schemes are examples of some that can be considered hierarchical, with the components of the hierarchy being separated by "/".
Source: Wikipedia Uniform Resource Locator (URL)
...
MySQL pagination without double-querying?
...nt for a few seconds and that will help a lot.
The other way is to use SQL_CALC_FOUND_ROWS clause and then call SELECT FOUND_ROWS(). apart from the fact you have to put the FOUND_ROWS() call afterwards, there is a problem with this: There is a bug in MySQL that this tickles that affects ORDER BY qu...
What's the correct way to sort Python `import x` and `from x import y` statements?
...
from nova.auth import users
from nova.endpoint import cloud
OR
import a_standard
import b_standard
import a_third_party
import b_third_party
from a_soc import f
from a_soc import g
from b_soc import d
Reddit official repository also states that, In general PEP-8 import ordering should be use...
What is the difference between Strategy design pattern and State design pattern?
...lgorithms in a
strategy pattern. The callers to the object does not change based on
which strategy is being employed, but regardless of strategy the goal
is the same (sort the collection).
The State pattern is about doing different things based on the
state, while leaving the caller relieved from th...
Launch Bootstrap Modal on page load
... edited Oct 9 '17 at 11:56
JH_
41044 silver badges1313 bronze badges
answered Jul 22 '14 at 13:50
JPCSJPCS
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java.lang.OutOfMemoryError: bitmap size exceeds VM budget - Android
... meminfo command. If you see heap usage increasing over a few gc cycles (GC_* log row in logcat) you can be pretty sure you have a leak. Then create a heap dump (or several at different times) via adb or DDMS and analyze it via the dominator tree tooling on Eclipse MAT. You should pretty soon find w...
How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
... - Topics or exchanges) , in such cases if you want to filter out messages based on topics (which are actually strings) , you definitely do not want create hash table for the million subscriptions with million topics . A better approach is store the topics in trie , so when filtering is done based o...
Rebasing and what does one mean by rebasing pushed commits
It is often said that, you should not rebase commits that you have already pushed. What could be meaning of that?
4 Answer...
JUnit: how to avoid “no runnable methods” in test utils classes
...it until after contributing another upvote that i can't remove. Make your base class abstract, then JUnit will ignore it. See @gmoore's answer below.
– Ryan Shillington
Mar 21 '17 at 21:57
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