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Why JSF saves the state of UI components on server?
... JSF need to save the state of UI components on the server side ?
Because HTTP is stateless and JSF is stateful. The JSF component tree is subject to dynamic (programmatic) changes. JSF simply needs to know the exact state as it was when the form had been displayed to the enduser, so that it can su...
ArithmeticException: “Non-terminating decimal expansion; no exact representable decimal result”
...oose the number of bits you want either 32,64,128.
Check out this link :
http://edelstein.pebbles.cs.cmu.edu/jadeite/main.php?api=java6&state=class&package=java.math&class=MathContext
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Grabbing the href attribute of an A element
...ly need to use a regular expression then check out this tool, it may help:
http://regex.larsolavtorvik.com/
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Catch all JavaScript errors and send them to server
...rowser strings to more human-readable descriptions, I copy-paste them into https://developers.whatismybrowser.com/useragents/parse/
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How to parse XML to R data frame
...ing the lists together in a data frame:
require(XML)
data <- xmlParse("http://forecast.weather.gov/MapClick.php?lat=29.803&lon=-82.411&FcstType=digitalDWML")
xml_data <- xmlToList(data)
In the case of your example data, getting location and start time is fairly straightforward:
lo...
How to use glyphicons in bootstrap 3.0
...rch"></span>
Here is a helpful list of changes for Bootstrap 3: http://bootply.com/bootstrap-3-migration-guide
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ASP.NET MVC controller actions that return JSON or partial html
...Include the JsonRequestBehavior.AllowGet; without this MVC was returning a HTTP 500 error (with dataType: json specified on the client).
Add cache: false to the $.ajax call, otherwise you will ultimately get HTTP 304 responses (instead of HTTP 200 responses) and the server will not process your requ...
Using crontab to execute script every minute and another every 24 hours [closed]
.../to/php /var/www/html/reset.php
See this reference for how crontab works: http://adminschoice.com/crontab-quick-reference, and this handy tool to build cron jobx: http://www.htmlbasix.com/crontab.shtml
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How to use Session attributes in Spring-mvc
...ion:
@RequestMapping(method = RequestMethod.GET)
public String testMestod(HttpServletRequest request){
ShoppingCart cart = (ShoppingCart)request.getSession().setAttribute("cart",value);
return "testJsp";
}
and you can get it from controller like this :
ShoppingCart cart = (ShoppingCart)ses...
What does .class mean in Java?
... etc.
Check these links (already mentioned above) to get all the details:
https://docs.oracle.com/javase/tutorial/reflect/class/classNew.html
https://docs.oracle.com/javase/8/docs/api/java/lang/Class.html
Normally you don't plan on using Reflection right away when you start building your project. ...