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Android Shared preferences for creating one time activity (example) [closed]
...t SharedPreferences data
// If value for key not exist then return second param value - In this case null
boolean userFirstLogin= pref.getBoolean("key_name1", true); // getting boolean
int pageNumber=pref.getInt("key_name2", 0); // getting Integer
float amount=pref.getFloat("key_name3...
Why use a ReentrantLock if one can use synchronized(this)?
...d scheduling.
The constructor for this class accepts an optional fairness parameter. When set true, under contention, locks favor granting access to the longest-waiting thread. Otherwise this lock does not guarantee any particular access order. Programs using fair locks accessed by many threads may...
Is optimisation level -O3 dangerous in g++?
...you want to take optimization into the extreme, you can tweak in gcc via --param the costs associated with certain optimizations. Additionally note that gcc now has the ability to put attributes at functions that control optimization settings just for these functions, so when you find you have a pro...
querySelector, wildcard element match?
...ms to work.
/**
* Find all the elements with a tagName that matches.
* @param {RegExp} regEx regular expression to match against tagName
* @returns {Array} elements in the DOM that match
*/
function getAllTagMatches(regEx) {
return Array.prototype.slice.call(document.querySelectorAll('...
When should std::move be used on a function return value? [duplicate]
...t or would be
met save for the fact that the source object is a function parameter,
and the object to be copied is designated by an lvalue, overload
resolution to select the constructor for the copy is first performed as
if the object were designated by an rvalue.
return foo; is a case of...
What does Provider in JAX-RS mean?
...ementation of javax.ws.rs.core.Feature interface injected through the init param (jersey.config.server.provider.classnames) in web.xml? How is the order controlled?
– Andy Dufresne
Jul 12 '17 at 5:22
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Places where JavaBeans are used?
.... Here's a simple example of a Javabean:
public class User implements java.io.Serializable {
// Properties.
private Long id;
private String name;
private Date birthdate;
// Getters.
public Long getId() { return id; }
public String getName() { return name; }
public D...
Read input from console in Ruby?
....to_i
puts c
Something like that?
Update
Kernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
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PostgreSQL disable more output
...the way in a similar question on ServerFault:
psql -P pager=off <other params>
turns off the paging thing, without suppressing output.
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How to add text inside the doughnut chart using Chart.js?
...r the text again and again if the chart is refreshed by providing new data params
– techie_28
Jun 29 '16 at 9:19
Have ...