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How to free memory in Java?
... Java Virtual Machine expend effort
toward recycling unused objects in
order to make the memory they
currently occupy available for quick
reuse. When control returns from the
method call, the Java Virtual Machine
has made a best effort to reclaim
space from all discarded objects.
...
Is Zookeeper a must for Kafka?
...d to have some way to coordinating tasks, state management, configuration, etc across a distributed system. Some projects have built their own mechanisms (think of the configuration server in a MongoDB sharded cluster, or a Master node in an Elasticsearch cluster). Others have chosen to take advanta...
Using i and j as variables in Matlab
... - use a name that describes the purpose (row_n, elementNo, listItemIndex, etc.). So much easier for someone to understand what you are doing, to debug, etc. The extra time spent is more than worth the gain in long-term maintainability for anything more than a throw-away script - even with the Matl...
How to set the font size in Emacs?
...ault nil :height 100)
The value is in 1/10pt, so 100 will give you 10pt, etc.
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What are the rules for calling the superclass constructor?
...assignment.
Keep in mind, that data members are always initialized in the order in which they are declared in the class definition, regardless of their order in the initialization list. To avoid strange bugs, which may arise if your data members depend on each other, you should always make sure th...
what is the difference between sendStickyBroadcast and sendBroadcast in Android
...
Types :- Local,Normal,Ordered and Sticky
Normal Broadcast
:- use sendBroadcast()
:- asynchronous broadcast
:- any receiver receives broadcast not any particular order
Ordered Broadcast
:- use sendOrderedBroadcast()
:- synchronous broadcast
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Apache is downloading php files instead of displaying them
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For people looking for where to put these lines. /etc/httpd/conf/httpd.conf
– Siraj Alam
Oct 6 '18 at 10:17
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Get a list of distinct values in List
...sParallel()" might give some performance benefit, if we doesn't care about order and have more items in the list.
– Sai
Oct 22 '15 at 20:58
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Passing a string with spaces as a function argument in bash
... if you have words that can be evaluated as glob expressions they will be, etc.
– Charles Duffy
Mar 29 '18 at 20:45
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Using GCC to produce readable assembly?
...hem. In this case, one is overriding the other, probably depending on the order in which they're used.
– Adam Rosenfield
Aug 17 '09 at 19:28
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