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How to reference constants in EL?
...mportClass() and be available as ${YourConstants.FOO}.
Note that all java.lang.* classes are already implicitly imported and available like so ${Boolean.TRUE} and ${Integer.MAX_VALUE}. This only requires a more recent Java EE 7 container server as early versions had bugs in this. E.g. GlassFish 4.0...
'AND' vs '&&' as operator
...
Actually, other languages (for example, Perl and Ruby) also have these variants with the same precedence distinction so it wouldn't be sensible to deviate from this standard (however puzzling it might be for beginners) by making precedence e...
difference between foldLeft and reduceLeft in Scala
...ill error if applied to an empty container with the following error.
java.lang.UnsupportedOperationException: empty.reduceLeft
Reworking the code to use
myList foldLeft(List[String]()) {(a,b) => a+b}
is one potential option. Another is to use the reduceLeftOption variant which returns an ...
Is passing 'this' in a method call accepted practice in java
...n is always easier to argument), I just opened one of the most common java.lang classes, the String one, and of course I found instances of this use, for example
1084 // Argument is a String
1085 if (cs.equals(this))
1086 return true;
Look for (this in big "accepted" proj...
Git SSH error: “Connect to host: Bad file number”
...dited May 27 '12 at 17:38
Peter Lang
49.3k2626 gold badges138138 silver badges152152 bronze badges
answered May 27 '12 at 12:03
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How to write :hover condition for a:before and a:after?
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To change menu link's text on mouseover. (Different language text on hover)
here is the
jsfiddle example
html:
<a align="center" href="#"><span>kannada</span></a>
css:
span {
font-size:12px;
}
a {
color:green;
}
a:hover span {
display...
What is the difference between
...ything about ERB can now be found here:
https://puppet.com/docs/puppet/5.3/lang_template_erb.html#tags
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Similarity String Comparison in Java
... Levenshtein distance method is available in org.apache.commons.lang3.StringUtils.
– Cleankod
Dec 5 '14 at 8:55
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What is difference between CrudRepository and JpaRepository interfaces in Spring Data JPA?
...a is not any different from any other general purpose library like commons-lang or Guava. As long as it provides reasonable benefit, it's just fine.
By extending e.g. CrudRepository, you expose a complete set of persistence method at once. This is probably fine in most circumstances as well but you ...
When to use an assertion and when to use an exception
...u should catch only the exception that you are expecting. By catching java.lang.Exception (and especially by not logging it), you are making it harder to diagnose / debug the problem, and potentially allowing the app to do more damage.
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