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How to free memory in Java?
... 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.
share
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Redis - Connect to Remote Server
...st to be sure.
After establishing it is listening where you expect it to, from a remote node which should have access try:
redis-cli -h REMOTE.HOST ping
You could also try that from the local host but use the IP you expect it to be listening on instead of a hostname or localhost. You should see ...
Ruby function to remove all white spaces?
...
This is equivalent to trim. Please refer to the quote from @Tadeck above.
– Brett Holt
Jul 12 '12 at 2:48
3
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onActivityResult() & onResume() [duplicate]
...
First calling onActivityResult() then onResume().
Quote from docs:
protected void onActivityResult (int
requestCode, int resultCode, Intent
data)
Since: API Level 1 Called when an
activity you launched exits, giving
you the requestCode you started it
with, the r...
Singletons vs. Application Context in Android?
...with Dianne Hackborn's response. We are bit by bit removing all singletons from our project in favor of lightweight, task scoped objects which can easiliy be re-created when you actually need them.
Singletons are a nightmare for testing and, if lazily initialized, will introduce "state indeterminis...
Multiple returns from a function
...t in str_replace, $matches in preg_match). This might feel quite different from returning multiple values, but it is worth at least knowing about.
A third method is to use an object to hold the different values you need. This is more typing, so it's not used quite as often as the two methods above....
What is a coroutine?
... What is the difference between calling a function directly and yielding from a coroutine with wrapping this function into this coroutine?
– Ming Li
Aug 4 '14 at 10:44
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remove_if equivalent for std::map
I was trying to erase a range of elements from map based on particular condition. How do I do it using STL algorithms?
13 A...
Removing Data From ElasticSearch
I'm new to ElasticSearch . I'm trying to figure out how to remove data from ElasticSearch. I have deleted my indexes. However, that doesn't seem to actually remove the data itself. The other stuff I've seen points to the Delete by Query feature. However, I'm not even sure what to query on. I know...
When is the @JsonProperty property used and what is it used for?
...a good example. I use it to rename the variable because the JSON is coming from a .Net environment where properties start with an upper-case letter.
public class Parameter {
@JsonProperty("Name")
public String name;
@JsonProperty("Value")
public String value;
}
This correctly parses to/f...